U2 KNEE SYSTEM - projectdesign-nyc.comprojectdesign-nyc.com/pdf/KneeBrochure.pdf · U2 KNEE SYSTEM FLEXION ENGINEERED consistent anterior/posterior sizing incrementation provides

U2 KNEE SYSTEM H i g h F l e x i o n E n g i n e e r e d

TABLE OF CONTENTS

Pre-Operative Planning ................................................................................................................1

Surgical Incision.............................................................................................................................2

A. Femoral PreparationA.1. Pilot Hole ........................................................................................................................3A.2. Femoral Valgus Angle Confirmation ...........................................................................4A.3. Distal Femoral Cutting..................................................................................................5A.4. Femoral Component Sizing ..........................................................................................6A.5. A-P Chamfer Cutting....................................................................................................7

B. Tibial Preparation B.1. Tibial Extramedullary Alignment.................................................................................8B.2. Tibial Intramedullary Alignment................................................................................10

C. Trial PreparationC.1. Extension and Flexion Gap Confirmation................................................................12C.2. Initial Femoral Trail Insertion ....................................................................................14C.3. Initial Tibial Baseplate Trial Insertion .....................................................................15C.4. Determination of Final Tibial Baseplate Location...................................................16

and Tibial Stem Hole Creation

D. Posterior Stabilized Femoral Component PreparationD.1. PS Notch Guide Positioning and PS Intercondylar Notch Creation ..................17D.2. Trial Reduction ...........................................................................................................19

E. Patellar Preparation E.1.1. Patellar Preparation - Inset Type Patellar Component ........................................20E.1.2. Inset Type Patellar Implant Pilot Hole Creation and Reaming ..........................21E.2. Patellar Preparation - Onset Type Patellar Component..........................................23

F. Implant Fixation F.1. Final Trial Reduction ...................................................................................................24F.2. Implant Fixation ............................................................................................................25

G. Post Operative Care...............................................................................................................26

Implants Catalog .........................................................................................................................27

Instrument Catalog .....................................................................................................................29

Safety Statement..........................................................................................................................42

U2 CR SYSTEMF L E X I O N E N G I N E E R E D

volume appropriate sizing reduces overfit, encourages optimal capsular volume, and

contributes to maximum rom potential

low profile patellofemoral joint line reducing ‘boxy’ profile and relieving

anterior capsular tenting

9mm posterior femoral condyle thickness facilitates deep flexion with enhanced contact

compression molded uhmwpe for maximum performance and trusted wear characteristics

tapered dualpeak flange allows precision femoral blending

round-on-round articulation via consistent 70/72mm coronal plane contact radius allows efficient load distribution

multi-radius femoral condyle curvature

titanium forged

anterior uhmwpe chamfer for optimized patellar tendon clearance

peripheral insert locking - provides secure coupling and micromotion reduction

cast cobalt chrome available in both porous and non-porous

progressive ap slope built into tibial articular design

refined size incrementation provides smooth size increase increments

medial lateral flange taper angle provides optimal anterior blend

6 femoral and 6 tibial sizes

U2 PS SYSTEMF L E X I O N E N G I N E E R E D

low profile patellofemoral joint line reducing ‘boxy’ profile and relieving

anterior capsular tension

9mm posterior and distal femoral condyle thickness facilitates flexion/extension gap balancing

tapered dualpeak flange allows precision femoral blending

round on round articulation provides efficient load distribution

multi-radius femoral condyle curvature

peripheral insert locking provides secure coupling and micromotion reduction

consistent intercondylar notch width for size interchangeability

cast cobalt chrome

ps housing radial contour allows axial rotation, reducing ‘corner-impingement’ wear/binding potentials

medial lateral flange taper angle provides optimal anterior blend

45 degree insert chamfer to increase flexion potential

60/40 ap engineered spine/cam position locates femoral component appropriately,

while reducing anterior compartment volume

spine/cam jumping distance engineeredfor maximum engagement

posterior guidance spine/cam engineered to guide posterior femoral rollback as flexion increases

U2 KNEE SYSTEMF L E X I O N E N G I N E E R E D

consistent anterior/posterior sizing incrementation provides predictable intra-operative size choice decisions

round on round articulation provides efficient load distribution

peripheral insert locking provides secure coupling and micromotion reduction

four degree patella articular angle

progressive tibial articular a/p slope for maximumrange of motion potential

large distal radius and decreasing posterior radius, together with the spine/cam

mechanism facilitate normal anteroposterior rollback of the femur on the tibia, achieving

an unimpinged ROM potential of 139˚

round on round articulation via consistant 70/72mm coronal planecontact radius allows efficient load

distribution and sizing interchangeability

consistent 18mm intercondylar notchwidth allows component interchangeabilityand preserves maximum condylar contact

ps housing anterior radial contourallows axial rotation reducing ‘cornerimpingement’ wear/binding potentials

spine/cam design engineered for maximum jumping distance safety

90˚

139˚

139˚

139˚

90˚

0˚

0˚

90˚

Jumping Distance

R72

R70

Intercondylar Notch Width

YC

ZC XC

Patellar Flange Thickness

4˚

Tibial Slope

PREFACE Pre-Operative Planning

Throughout the evolution of total knee replacement science, significant improvements have beenachieved to both implant design and implantation techniques, refining the procedure to routinely pro-vide measurable improvements in clinical results. Amidst these advancements, the body of science con-tinues to evolve, inspiring further refinements in both TKR implant and instrumentation design.

At United Orthopedic Corporation, our research and development efforts have focused on a compre-hensive review of the contemporary state of the art, an observance of time proven performance anddesign elements, and thoughtful analysis of those areas which may be improved through refined designelements. Our research areas included a scientific review of contemporary TKR designs and their associ-ated clinical performance, along with a dimensional analysis of normal human knee anatomy, a study ofmotion patterns which achieve deep flexion, and key mechanisms of wear and failure in present designs.

We then applied this data to evaluate ideal implant shape, size range, contact geography, durability, andincreased functional range of motion. The result is a comprehensive design intended to enhance patientresults. We invite you to reference the U2 Design Rationale documents for further information.

Among the major features of the U2 Knee design are:• A science based size range for improved implant fit and associated capsular/soft tissue interactions• An interchangeable round-on-round femorotibial articulation for enhanced load distributions

and improve wear characteristics• High Compression Molded UHMWPE for enhanced wear performance • A refined PS Progressive Rollback Post and Cam mechanism to provide more effective anatomic

rollback behavior for improved ROM potentials• An improved Post and Cam jumping distance to reduce dislocation potential • An increased posterior condylar lobe thickness to provide important curvature continuation to

encourage ROM and minimize bone/implant impingement potentials in deep flexion• A multi radius femoral component curvature to encourage physiologic ligament tension relationships

The U2 Total Knee System Instrumentation key components include:• Anterior Reference System to accurately position anterior flange blending• Distal Femoral Valgus cutting guide in 1 degree increments • PS Notch Cutting Guide with powered Reamer and Osteotomes for precise preparation• Both Intramedullary and Extramedullary Tibial Alignment Guide Options • Both Inset and Onset Patellar Cutting Guide Options to accurately prepare and restore the

patellar thickness • Femoral/Tibial Spacer Blocks to allow assessment of the flexion and extension gap balance• Four compact sterilization trays to provide efficient instrument handling

MIS options include minimal size instrumentation, and a patented Distal Femoral Cutting Guide andFemoral Sizing Caliper to improve working within the spacial limitations of the incision.

A thorough physical examination of the knee should be performed in a standard manner to evaluatethe patient's overall knee function. Functional stability, muscle tone, ligamentous/capsular laxity and/orligamentous/capsular contractures, and potential bone loss are all considered.

Both A-P and Lateral standing radiographs, with a known magnification, should be obtained and evaluat-ed. Radiographs of the non-operative limb may also be obtained to provide an additional reference.

Additionally, the surgeon may elect to obtain A-P long leg radiographs of both limbs to allow evalua-tion of the current hip/knee/ankle mechanical axis for both knees, and to allow for additional pre-operative planning of the intended corrective osteotomies and resultant final alignment/implant posi-tioning.

If intra-medullary alignment instrumentation is intended to be used, the shape and diameter offemoral and tibial canals should be evaluated to help assure the successful use and passage of intra-medullary alignment devices into the bone canals.

The intended implant size must also be evaluated on both A-P and lateral radiograph, by the use of theU2 Radiographic overlay templates. The magnification percentage of the templates used shouldapproximate the known magnification of the radiograph.

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A. FEMORAL PREPARATION

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1 Starter9301-210

Surgical Incision

The surgeon may elect to use any standard exposure method to perform the skin and capsular incision.If a medial parapatellar approach is selected, a straight midline skin incision, extending above andbelow the patellar is used to begin the exposure. The capsular exposure is then approached utilizing alongitudinal medial parapatellar incision, typically extending upward to a level of one third of the rec-tus femoris or vastus medialis of the quadriceps, and downward to the medial side of the patellar ten-don insertion on the tibial tuberosity.

Once the exposure is complete, the patella is everted in a standard fashion, and the knee joint isinspected under direct vision. Careful assessment and potential removal of ostoephytes should beundertaken at this time. Evaluation of ROM, patellar tracking, and soft tissue stability/instabilityshould be evaluated again at this time. It may be the preference of the surgeon to conduct a preliminarysoft tissue release of fixed contracted structures at this time. Once completed, the knee is flexed to 90degrees to perform drilling of the initial femoral pilot hole for the intramedullary alignment instru-ments of the femur.

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A.1 Pilot HoleWith the ACL removed, the typical femoral entry hole location is thought to be slightly medial to thecenter of the intercondylar notch, and approximately 5 to 7mm anterior to the anterior insertion of thePCL into the femur. Important note: As both varus and valgus deformities are commonly encounteredin the total knee patient, careful evaluation of the possible A-P and M-L curvature of the femoral shaftshould be undertaken to consider shifting the initial entry hole to a more appropriate location for eachspecific patient.

A Starter Pilot (1) is used to mark the hole location, followed by the 8mm Twist Drill (2) to create anopening in the femoral canal. The drill is typically inserted to a depth of approximately 100mm withinthe femoral canal.

After removal of the drill, intramedullary fluid of the femur may be reduced by inserting the smalldiameter Alignment Rod (5) into the femoral shaft several times. This will also identify the femoralcanal.

Once the canal is identified, the Femoral IM Rod (4) and T-Handle (3) is manually inserted into thefemoral canal until the isthmus is engaged. Care should be taken when encountering the isthmus toassure the rod diameter will allow complete passage. Please note: If the canal isthmus diameter isthought to be too narrow for standard passage of the rod, advancement is discontinued, and an intra-operative radiograph may be employed to access the appropriate location of the rod.

2 8mm Twist Drill9301-3201

3 T-handle9301-1100

4 Femoral IM Rod9303-3200,(400mm)

5 Alignment Rod9403-2202

Starter Pilot Hole

Canal Entry Drill

IM Rod with T-Handle

A.2 Femoral Valgus Angle ConfirmationWith the T-Handle (3) removed, insert the Femoral IM Alignment Guide (6) onto the Femoral IMRod (4) and advance the Guide forward until contact with the distal femoral condyle(s). Adjust theGuide to the desired Valgus angle (range of 0 to 11 degrees may be chosen). With the guide positionedin a neutral rotation, the guide may be affixed to the femur with a pin through one or both of thefemoral condyles.

To confirm the valgus angle chosen, an Extramedullary Alignment Tower (7) may be attached to theGuide.

A.3 Distal Femur CuttingAttach the Distal Femoral Cutting Guide (10) to the Distal Femoral Alignment Guide (9). To securethe cutting guide, two 3.2 mm Twist Drills (11) are drilled into the "0" hole site on the distal femoralcutting guide. Prior to cutting the distal femur, additional fixation may be achieved by utilizing theQuick Pin Driver (12) to place additional pins in the medial and lateral pin holes provided.

Once the instrument is secured, the resection is performed through the most distal slot in the instru-ment, utilizing a standard .050 (1.27mm) thick saw blade.

NOTE: The +3MM Slot Option may also be selected for use if the surgeon wishes to resect a 3mmgreater thickness of distal bone.

NOTE: +2/+4 Guide Hole Options are provided to allow additional resection if desired at a later pointin the procedure.

4 5

9 Distal Femoral Alignment Guide9303-2102-RA

6 Femoral IM Alignment Guide9303-2111-RA

7 ExtramedullaryAlignment tower9301-2282

8 Spike9301-32079303-32019303-3202

10 Distal FemoralCutting Guide9303-2103-RB

11 3.2mm Twist Drill9303-32039303-3204

12 Quick Pin Driver9303-5001-RA

IM Alignment Guide with Optional Pin

OptionalAlignment Tower

Position DistalFemoral Cutting Guide

Pin Guide into position

Perform distal resection

A.5 A-P Chamfer CuttingWith the Femoral Sizing Guide (14) removed, insert the spikes (8) of the chosen Femoral A/P -Chamfer Cutting Guide (15) into the predrilled holes. A mallet may be utilized to assure flush seatingof the Guide with the distal femur. Additional stability may be obtained by attaching the GuideHandles (16) to the Cutting Guide (15).

Prior to cutting, the Feeler Gauge (17) may be utilized to assess the position of the Guide (15) and theanticipated bone resection. A .050" (1.27mm) saw blade is used to perform the four resections. Careshould be taken to protect surrounding soft tissues during the resections. The saw blade may be passedmultiple times to assure complete resection.

7

15 Femoral A/P Chamfer Cutting Guide9303-2110-RA9303-2120-RA9303-2130-RA9303-2140-RA9303-2150-RA9303-2160-RA

6

13 Pin Extractor9303-5002

A.4 Femoral Component Sizing After completion of the distal femoral cut, remove the Distal Femoral Cutting Guide (10) assembly.

Place the Anterior Reference Femoral Sizing Guide (14) flush against the resected distal femur. Careshould be taken to position the two posterior feet of the Femoral Sizing Guide (14) in contact with the posterior femoral condyles. Also, assure the anterior stylus is in proper contact to allow appropriateestimation of the anterior implant flange cutting level. The estimated size is indicated as shown on theface of the Femoral Sizing Guide (14).

NOTE: The Femoral Sizing Guide (14) is an anterior reference system. If the indicated size on the face of the Guide is between two sizes, it is generally preferred to select the smaller size option. (Inselecting the smaller size option, the additional bone resection will be removed from the posteriorcondyles.)

With the Femoral Sizing Guide held in a stable position, two 3.2mm drill are drilled into the face holes. The surgeon may select from 0 or 3 degrees of External Rotational Alignment.

14 Femoral Sizer,Anterior Ref9303-7101-RD

16 Femoral A/P Chamfer Guide Handle9301-2291

Remove Guide

Femoral Sizing Guide androtational determination

Position A/P ChamferCutting Guide

Confirm anterior positionwith Blade Guage

Resections performedwith optional Handlesor Pins

17 Blade Gauge,1.35mm9301-2251

B. TIBIAL PREPARATION

B.1 Extramedullary Alignment

Assemble the EM Alignment Guide (22) and attach the selected Cutting Jig (21). The surgeon mayselect from the options: left or right, 0 or 5 slope.

With the knee fully flexed, position the distal portion of the Guide (22) at the anterior ankle jointwith the supramalleolar spring tabs. Position the proximal portion of the Guide (22) by impacting the proximal spikes of the Guide (22) into the central portion of the proximal tibial plateau.

The cutting elevation may be determined by inserting the Tibial Stylus (20) in the resection slot.

NOTE: The Stylus (20) allows two options for positioning the Cutting Guide; 2mm or 9mm cutting levels. When the Stylus (20) tip marked 2mm is positioned on the low point of the tibial plateau, it willposition the Cutting Jig (21) so that the bone resection will occur 2mm below the contact point of thestylus tip. If the 9mm stylus tip is positioned on the high point of the tibial plateau, it will position theCutting Jig (21) 9mm below the contact point of the stylus tip.

Once the elevation is chosen, the 3.2mm Drills (11) are placed in the '0' hole option of the Cutting Jig(21). Additional peripheral Drills (11) or Pins (8) may also be used to secure the Cutting Jig (21).

Once the Cutting Jig (21) is securely positioned, the Tibial EM Alignment Guide (22) may now beremoved utilizing the Tibial EM Guide Extractor (23). Resection of the tibial plateau is now per-formed utilizing a .050" (1.27mm) saw blade.

NOTE: Prior to resection, if the surgeon wishes to increase or decrease the tibial resection thickness, the+2 or –2 hole locations may be utilized to re-position the Cutting Jig (21).

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22 Tibial EM Alignment Guide9403-2104

20 Tibial Stylus9403-7101-RA

21 Tibal Cutting Jig9403-2120-RC9403-2125-RC9403-2220-RC9403-2225-RC

Select 0 or 5 degree sloping Tibial Cutting Jig

1. Position EM Guide

3. Remove EM Guide with Extractor

4. Perform tibial resection

2. Utilize Tibial Stylus to determineelevation and pin into position

23 Spike and Tibial EMGuide Extractor9303-5101

19 Tibial IM Alignment Guide9403-2103

B.2 Tibial Intramedullary AlignmentWith the knee positioned in flexion, the Starter (1) may be used to create a pilot hole in the proximaltibia. (As individual anatomy may vary the appropriate position of the initial tibial plateau entry hole,careful assessment of individual patient tibial anatomy should be considered prior to determining theappropriate entry hole location.) An 8mm Twist Drill (2) is used to create an initial tibial canal opening.

Attach the T-Handle (3) to the Tibial IM Rod (18) and insert into the tibial canal. Care should betaken to assure the IM Rod (18) hole location will allow the IM Rod (18) to pass through the isthmusof the tibial canal.

Once the IM Rod (18) is fully inserted, the T Handle (3) is removed and the Tibial IM AlignmentGuide (19) is assembled onto the Rod (18). The external Alignment Rod may be used to evaluate theaxis of the IM Rod.

Select and position a Left or Right, 0 or 5 degree slope Tibial Cutting Jig (21) onto the Guide (19).With the thumb screw held loosely, the Tibial Stylus (20) may be used to establish the appropriateheight position of the Cutting Jig (21).

NOTE: The Stylus (20) allows two options for positioning the Cutting Guide; 2mm or 9mm cutting levels. When the Stylus (20) tip marked 2mm is positioned on the low point of the tibial plateau, it willposition the Cutting Jig (21) so that the bone resection will occur 2mm below the contact point of thestylus tip. If the 9mm stylus tip is positioned on the high point of the tibial plateau, it will position theCutting Jig (21) 9mm below the contact point of the stylus tip.

With the Cutting Jig (21) properly positioned, two 3.2mm Drills (11) are placed into the 0 hole locations. Additional Drills (11) may be used in the peripheral holes provided.

With the Cutting Jig (21) secured, the T Handle (3) is re-assembled onto the Rod (18) for removal ofthe Rod (18) and Alignment Guide (19), leaving the Cutting Jig (21) in place.

The proximal tibial resection may now be performed utilizing a .050" (1.27mm) saw blade. Once theresection is complete, the Cutting Guide and Pins may be removed for subsequent trial reduction.

10 11

18 Tibial IM Rod9401-2203

20 Tibial Stylus9403-7101-RA

21 Tibal Cutting Jig9403-2120-RC9403-2125-RC9403-2220-RC9403-2225-RC

3 T-handle9301-1100

5 Alignment Rod9403-2202

Determine position anddrill initial entry hole

Utilize Tibial Stylus to determine elevation and pin into position (optionalAlignment Rod confirmation)

Perform tibial resection

Tibial IM Rod insertionwith T-Handle

Initially position TibialIM Alignment Guide

If the flexion, extension, or both gaps and associated soft tissue tension appear to be unbalanced, thefollowing techniques may be employed:

Tight Flexion - Tight Extension: Resect Additional Bone from the Tibia

If the Gap is deemed too tight in both flexion and extension, the surgeon may wish to remove addi-tional bone from the tibia, as this surface is common to both the flexion and extension gaps. The sur-geon may re-position the Tibial Cutting Jig (21) to perform this resection. The Gap Gauge (24) maythen be utilized to re-access the newly established flexion/extension gap.

Balanced Flexion - Tight Extension: Resect Additional Bone from the Distal Femur

If the Gap is deemed too tight in extension only, the surgeon may wish to remove additional bone fromthe distal femur, as this surface re-cut will affect the extension gap only. The Femoral Distal CuttingGuide (10) may be repositioned on the femur to perform this resection. The Gap Gauge (24) may thenbe utilized to re-access the flexion/extension gap.

NOTE: Following the distal femoral re-cut, the AP-Chamfer Guide (15) is required to recreate thefemoral chamfer cuts.

Tight Flexion - Balanced Extension: Resect Additional Bone from the Posterior Femur

If the Gap Gauge (24) is too tight in flexion only, the surgeon may elect to down-size the femoral com-ponent and thereby affect the associated flexion gap only. To down-size the femoral component, selectan AP Chamfer Cutting Guide (15) one size smaller than originally used, and reposition the Guideinto the original distal femoral drill holes.

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C. TRIAL PREPARATION

C.1 Extension and Flexion Gap ConfirmationThe flexion and extension joint space gaps may be evaluated at this time using the Gap Gauge (24)templates. The 9mm Gap Gauge (24) is initially selected to assess both the total flexion and extensionjoint space. In the event that a thicker Gap Gauge (24) is required, combine the additional Gap GaugePlates (24) to increase the Gauge to a desired thickness.

NOTE: The Alignment Rod (5) may be inserted through the handle to assess the extramedullary align-ment in both flexion and extension.

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24 Gap Gauge9403-70099403-70119403-70139403-70159403-7018

Utilize Gap Gauge toaccess flexion andextension gaps

Gap Gauge thicknessmay be increased

28 Tibial Baseplate Trial2203-40102203-40202203-40302203-40402203-40502203-4060

14 15

25 Femoral Driver9303-5102

C.3 Femoral Trial InsertionAssemble the CR Femoral Implant Trial (27) to the Femoral Driver (25). Introduce the Trial (27) in an aligned fashion onto the femur. Carefully advance the Trial (27) with a mallet. The FemoralImpactor may also be used for seating. Check the Trial (27) for flush contact with the femur. Onceconfirmed, femoral and tibial trialing may be conducted in a standard fashion. If the surgeon desires to utilize the CR Femoral Implant the fixation peg holes may be drilled with the Femoral CondyleDrill (31).

C.2 Tibial Trial InsertionAs the U2 Knee system allows interchangeability of femoral and tibial implant sizes, select the TibialBaseplate Trial (28) that best provides maximum coverage of the proximal tibia.

Once selected, attach the Tibial Trial Handle (29) to the Baseplate Trial (28) and reposition thisassembly onto the tibia. The Alignment Rod (5) may be inserted into the Trial Handle (29) to further evaluate the proper positioning of the Trial (28). Remove the Trial Handle (29) and insert a Tibial Insert Trial (30) of desired thickness.

29 Tibial BaseplateTrial Handle9403-1201

30 Tibial Insert TrialC/N various by size

31 Femoral Condyle Drill9303-3206

Tibial Baseplate Trialand Handle

Optional EM AlignmentRod confirmation

Femoral Trial and Driver

Femoral Condyle Drill for posts of CR FemoralImplant

Femoral Impactor

26 Femoral Impactor9303-5103

27 Femoral TrialC/N variousby size

Position and Pin Notch Guideusing Drills and/or Spikes

PS Reamer insertedthrough both Guide slots

D. POSTERIOR STABILIZED FEMORAL COMPONENT PREPARATION

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C.4 Determination of Final Tibial Baseplate Location and Tibial Stem Hole Creation

Once trialing is complete, remove of the Femoral Trial (27) and Tibial Insert Trial (30). The BaseplateTrial (28) position may now be marked and pinned into proper position utilizing two Short Spikes (8).

Once pinned into position, the center stem Tibial Drill Guide (32) is engaged into the Baseplate Trial(28) alignment holes. While holding the Drill Guide (32) securely in place, the Tibial Drill (33) isadvanced into the stem hole until the collar of the Tibial Drill (33) completely seats with the collar ofthe Drill Guide (32). The Drill and Guide is then removed.

The Tibial Punch Handle (34) and appropriate size Tibial Punch (35) are then assembled. Thisassembly is then carefully impacted into the stem hole. Once completed, the Tibial Punch (35) andHandle (34) are removed.

16

32 Tibial Drill Guide9403-2105

D.1 PS Femoral Notch Guide Positioning To utilize the PS Femoral system, the PS Notch Cutting Guide (37) is now positioned to create thePS Housing. Select the Guide of the intended Femoral Implant size and center onto the femur.Secure the Guide distally utilizing Drill Bits and anteriorly using Spikes.

Once secured, insert the PS Reamer (38) first into the anterior guide slot in the PS Notch Guide (37).Advance the PS Reamer (38) under drill power until it is seated flush with the Guide (37). The PSReamer (38) is then inserted in the same manner into the posterior guide slot. A visual clearance ofcomplete bone removal is advised.

33 Tibial Drill9403-3001

34 Tibial PunchHandle, MB9403-1102-RA

35 Tibial Punch9403-60109403-60209403-6030

37 PS Notch CuttingJig9303-22109303-22209303-22309303-22409303-22509303-2226

Position Tibial DrillGuide onto Trial Base

Assembly fully insertedand removed

Assemble Tibial Punch and Handle

Utilize Tibial Drill to create stem hole

38 PS Reamer/Short Version9303-4101-RB

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D.2 PS Femoral Notch CuttingThe PS Housing Punch (39) is now inserted into both the anterior and posterior Guide slot to complete all bone removal. The PS Housing Impactor (40) may now be inserted to verify completeclearance of all required bone.

Remove the PS Notch Cutting Guide (37).

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D.3 PS Femoral Trial Reduction Introduce the PS Trial (27) onto the femur, carefully aligning the PS Housing of the Trial implant tothe cut housing in the femoral bone. Advance the Trial (27) and Driver (25) carefully with a malletuntil fully seated.

Insert an appropriate size and thickness of PS Tibial Insert Trial (30) onto the Tibial Baseplate Trial(28) and Trial (27) in a normal fashion.

Once trialing is completed, the trials may be removed in a standard fashion.

39 PS Housing Punch9303-5104

40 PS HousingImpactor9303-5105

Femoral and Tibial Trialing

PS Housing Punch

PS HousingImpactor

PS HousingImpactorfully seated

In using the inset type patellar component, attach the selected diameter Patellar Clamp Ring (44) and the Anterior Patellar Clamp Head (43) to the Clamp (43). Position the Ring (44), aligning thecenter of the Ring with the center mark previously created. The anterior-posterior direction of theClamp is accessed and then clamped securely into position.

Place the corresponding diameter Depth Sleeve (45) onto the Ring (44), align the keyway slots, and com-pletely seat. The Patellar Reamer (48) and the Reamer Stopper (49) are loosely assembled and positionedinto the Ring (44) to establish the depth of advancement of the Reamer (48).

Allow the Reamer (48) to contact the patellar surface. The Stopper (49) is allowed to slide into contactwith the face of the Depth Sleeve (45). The Stopper (49) is then securely tightened with theScrewdriver (50). The Depth Sleeve (45) and Reamer (48) are now removed for center hole drilling.

21

43 Patellar ResectionClamp

E. PATELLAR PREPARATION

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41 Vernier Caliper9401-7012

E.1 Patellar Preparation - Inset Type Patellar ComponentEvert the patellar and remove excessive osteophytes. With a Caliper (41), measure and record thethickness of the anterior-posterior dimension of the patella.

NOTE: In planning the resection thickness, it is recommended to retain a 10mm minimal thickness ofretained patella bone to support the implant structure.

The Inset Patellar Sizing Ring (42) is used to determine the desired patellar diameter and positioning.Typically, the Ring is positioned over the highest point of the articulation and the center position ismarked with a cautery or ink.

42 Inset PatellarSizing Ring9401-7002

49 Patellar ReamerStopper

50 Screw Driver

48 Patellar Reamer

44 PatellarClamp Ring

45 Patellar Drill Depth Sleeve

Measurement ofA/P dimension

Measurement of diameter

Position Clamp with DepthSleeve – insert Reamer withStopper loosely assembled

Flush contact with bone and DepthSleeve confirmed – Stopper securelytightened

Postion and secure Onset Resection Guide(Feeler Gauge not shown)

Perform Onset resection

Onset Patellar DrillGuide with Peg Drill

52 Onset PatellarResection Guide9403-5302-RB

The Patellar Drill Guide (46) is now positioned into the Ring (44) and the Patellar Drill (47) is fully inserted to create the center peg hole. Once drilling is completed, the Reamer (48) is reintroduced intothe Ring (44) for creation of the inset patellar bed.

Under power, carefully advance the Reamer (48) and Stopper (49) assembly into the patellar boneuntil the Stopper (49) contacts the Ring (44).

NOTE: The Reamer (48) and Stopper (49) will create a recess depth equal to the thickness of the selected diamter implant. In addressing a small patella, care should be taken to retain at least 8 mm of patellar bed thickness. In some patients, it may be necessary to adjust the Patellar Reamer Stopper(49) manually.

The patellar Resection Clamp is now removed and the Inset Patellar Trial (51) is positioned into theprepared bone bed. The peripheral bone shoulder surrounding the Inset patellar trial is accessed, andmay be trimmed to achieve a smooth blending of the implant periphery to the bony shoulder.

A thickness measurement of the implant/bone couple may be performed to assure the original patellarA-P thickness has been recreated. Trial evaluation is conducted in a standard fashion.

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51 Patellar Trial,Inset2401-20102401-20202401-20302401-2040

E.2 Patellar Preparation - Onset Type Patellar ComponentEvert the patellar and remove excessive osteophytes. With a Caliper (41), measure and record thethickness of the patella.

NOTE: In planning the resection thickness, it is recommended to retain a 8 mm minimal thickness ofretained patella bone to support the implant structure.

The Onset Cutting Guide Jaws (52) are mounted onto the Patellar Clamp (43) along with the FeelerIndex corresponding to the thickness of the intended implant diameter. The Clamp (43) is then intro-duced onto the patella and the Feeler Index is held in contact with the posterior patellar surface. TheA-P direction of the Clamp is evaluated. The Clamp is then stably clamped into position.

A .050" thick saw blade is carefully guided through the slots for the resection.

Once the resection is complete, the Patellar Clamp is removed and the Onset Cutting Guide Jaws areremoved from the Clamp. The Tri-Peg Modular Drill Guide and Anterior Patellar Clamp Ring aremounted onto the Clamp, and the assembly is repositioned onto the resected patella to perform the tri-peg drilling. (As an alternative, the hand-held Patellar Drill Guide (53) may be used.)

The Tri-Peg holes are now drilled with the collared Peg Drill (54).

The Onset Patellar Trial (51) may now be positioned, assessing the contact and stability of the bone/implant couple. A thickness measurement of the implant/bone couple may be performed to assure theoriginal patellar A-P thickness has been re-established. Trialing is performed in a standard fashion.

53 Onset PatellarDrill Guide9403-53079403-53089403-53099403-53109403-5311

54 Onset PatellarPeg Drill9403-4001

55 Patellar TrialOnset2403-20102403-20202403-20302403-20402403-2050

47 Patellar Drill9401-5121

46 Patellar DrillGuideC/N various by size

Patellar Drill Guide andPatellar Drill to createcenter

Reintroduce Reamer/Stopper assembly andream patellar bed

Inset Trial

F. IMPLANT FIXATION

F.1 Final Trial Reduction With the selected femoral, tibial and patellar Trials in position, a final trial assessment is performed.The joint is thoroughly examined, the trials are then removed and the bone is prepared for finalimplantation.

F.2 Implant FixationAll Implants are indicated for cemented fixation.

To impact the Tibial Baseplate, it is recommended to carefully introduce and align the stem of theimplant into the prepared stem hole. The implant may be positioned by hand or by using the TibialBaseplate Driver (59). Once the Tibial Baseplate is advanced sufficiently, the Tibal Baseplate Impactor(56) may then be used to complete seating of the implant.

To impact the Femoral Implant, the Femoral Implant Driver (25) is assembled onto the FemoralImplant. Carefully align the femoral implant with the distal femur to assure correct advancement andseating of the implant. The Femoral Impactor (26) may also be used for seating if desired.

The Patellar Implant is first seated by hand, carefully aligning the implant peg(s) with the preparedbone bed. The Patellar Clamp (43), is equipped with the Cement Clamp Adaptor (58) and theAnterior Compression Head (shown assembled in 43). This assembly is then used to fully seat thecemented implant in a standard fashion.

Femoral and Tibial Insert trialing may now be performed again if desired prior to selection of finalInsert thickness.

24 25

25 Femoral Driver9303-5102

59 Tibial BaseplateDriver9403-5101

58 Patellar CementClamp Adapter9401-5312-RC

43 Patellar ResectionClamp

Tibial Baseplate Impactor

Femoral Driver and Implant

Femoral and Tibial Trialing

26 Femoral Impactor9303-5103

56 Tibial BaseplateImpactor9403-5102

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EPrior to insertion of the final Tibial Insert, place the knee in a flexed position and be sure to adequatelyretract soft tissues to allow proper visualization of the Tibial Base peripheral locking detail.

It is recommended to initially introduce the Tibial Insert by hand onto the Tibial Base. Once initialengagement with the locking detail is verified, the grooved Tibial Insert Impactor (57) may be used tofully seat the Insert. All areas of the assembly are then visually assessed for complete seating and lockingdetail engagement.

26

U2 Femoral componentcatalog number description2103-1110 Femoral component, CR, porous, #1, left 2103-1120 Femoral component, CR, porous, #2, left2103-1130 Femoral component, CR, porous, #3, left2103-1140 Femoral component, CR, porous, #4, left2103-1150 Femoral component, CR, porous, #5, left2103-1210 Femoral component, CR, porous, #1, right 2103-1220 Femoral component, CR, porous, #2, right2103-1230 Femoral component, CR, porous, #3, right2103-1240 Femoral component, CR, porous, #4, right2103-1250 Femoral component, CR, porous, #5, right2103-1310 Femoral component, CR, cemented, #1, left2103-1320 Femoral component, CR, cemented, #2, left2103-1330 Femoral component, CR, cemented, #3, left2103-1340 Femoral component, CR, cemented, #4, left2103-1350 Femoral component, CR, cemented, #5, left2103-1360 Femoral component, CR, cemented, #6, left2103-1410 Femoral component, CR, cemented, #1, right2103-1420 Femoral component, CR, cemented, #2, right2103-1430 Femoral component, CR, cemented, #3, right2103-1440 Femoral component, CR, cemented, #4, right2103-1450 Femoral component, CR, cemented, #5, right 2103-1460 Femoral component, CR, cemented, #6, right 2103-3110 Femoral component, PS, #1, left2103-3120 Femoral component, PS, #2, left 2103-3130 Femoral component, PS, #3, left 2103-3140 Femoral component, PS, #4, left 2103-3150 Femoral component, PS, #5, left2103-3160 Femoral component, PS, #6, left2103-3210 Femoral component, PS, #1, right 2103-3220 Femoral component, PS, #2, right 2103-3230 Femoral component, PS, #3, right 2103-3240 Femoral component, PS, #4, right2103-3250 Femoral component, PS, #5, right2103-3260 Femoral component, PS, #6, right

U2 Tibial Baseplatecatalog number description2203-3010 Tibial baseplate, cemented, #12203-3020 Tibial baseplate, cemented, #22203-3030 Tibial baseplate, cemented, #32203-3040 Tibial baseplate, cemented, #42203-3050 Tibial baseplate, cemented, #52203-3060 Tibial baseplate, cemented, #6

Size AP ML

1 52 56

2 56 60

3 60 64

4 64 68

5 68 72

6 72 76

Size 1 2 3 4 5 6AP 42 44.5 47 49.5 52 55.5ML 63 66 69 72 76 80

57 Tibial Insert Impactor9403-5103

Tibial Insert Impactor

Tibial Insert INSTRUMENT CATALOG

28 29

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catalog number2303-12112303-12122303-12132303-12142303-12152303-12212303-12222303-12232303-12242303-12252303-12312303-12322303-12332303-12342303-12352303-12412303-12422303-12432303-12442303-12452303-12512303-12522303-12532303-12542303-12552303-12612303-12622303-12632303-12642303-1265

descriptionTibial insert, CR, plained, #1, 9mmTibial insert, CR, plained, #1, 11mmTibial insert, CR, plained, #1, 13mmTibial insert, CR, plained, #1, 15mmTibial insert, CR, plained, #1, 18mmTibial insert, CR, plained, #2, 9mmTibial insert, CR, plained, #2, 11mmTibial insert, CR, plained, #2, 13mmTibial insert, CR, plained, #2, 15mmTibial insert, CR, plained, #2, 18mmTibial insert, CR, plained, #3, 9mmTibial insert, CR, plained, #3, 11mmTibial insert, CR, plained, #3, 13mmTibial insert, CR, plained, #3, 15mmTibial insert, CR, plained, #3, 18mmTibial insert, CR, plained, #4, 9mmTibial insert, CR, plained, #4, 11mmTibial insert, CR, plained, #4, 13mmTibial insert, CR, plained, #4, 15mmTibial insert, CR, plained, #4, 18mmTibial insert, CR, plained, #5, 9mmTibial insert, CR, plained, #5, 11mmTibial insert, CR, plained, #5, 13mmTibial insert, CR, plained, #5, 15mmTibial insert, CR, plained, #5, 18mmTibial insert, CR, plained, #6, 9mmTibial insert, CR, plained, #6, 11mmTibial insert, CR, plained, #6, 13mmTibial insert, CR, plained, #6, 15mmTibial insert, CR, plained, #6, 18mm

catalog number2303-30112303-3012 2303-3013 2303-3014 2303-3015 2303-30212303-30222303-3023 2303-30242303-3025 2303-30312303-30322303-30332303-30342303-30352303-3041 2303-30422303-30432303-30442303-30452303-30512303-30522303-30532303-30542303-30552303-30612303-30622303-30632303-30642303-3065

descriptionTibial insert, PS , #1, 9mm Tibial insert, PS , #1, 11m Tibial insert, PS , #1, 13mm Tibial insert, PS , #1, 15mm Tibial insert, PS , #1, 18mm Tibial insert, PS , #2, 9mm Tibial insert, PS , #2, 11mm Tibial insert, PS , #2, 13mm Tibial insert, PS , #2, 15mm Tibial insert, PS , #2, 18mm Tibial insert, PS , #3, 9mmTibial insert, PS , #3, 11mmTibial insert, PS , #3, 13mmTibial insert, PS , #3, 15mmTibial insert, PS , #3, 18mm Tibial insert, PS , #4, 9mm Tibial insert, PS , #4, 11mmTibial insert, PS , #4, 13mmTibial insert, PS , #4, 15mmTibial insert, PS , #4, 18mmTibial insert, PS , #5, 9mmTibial insert, PS , #5, 11mmTibial insert, PS , #5, 13mmTibial insert, PS , #5, 15mmTibial insert, PS , #5, 18mmTibial insert, PS , #6, 9mmTibial insert, PS , #6, 11mmTibial insert, PS , #6, 13mmTibial insert, PS , #6, 15mmTibial insert, PS , #6, 18mm

catalog number2401-10102401-10202401-10302401-1040

descriptionUKNEE Patella, size S UKNEE Patella, size MUKNEE Patella, size LUKNEE Patella, size XL

Size S M L XL

Diameter(mm) 22 25 28 32

Thickness(mm) 8 10 10 10

Onset Patellar Componentcatalog number2403-10102403-10202403-10302403-10402403-1050

descriptionPatella, onset, 3 pegs, size XS Patella, onset, 3 pegs, size S Patella, onset, 3 pegs, size M Patella, onset, 3 pegs, size L Patella, onset, 3 pegs, size XL

Size XS S M L XL

Diameter(mm) 26 29 32 35 38

Thickness(mm) 7 8 8.5 9 9.5

catalog number2103-21102103-21202103-21302103-21402103-21502103-21602103-22102103-22202103-22302103-22402103-22502103-22602103-41102103-41202103-41302103-41402103-41502103-41602103-42102103-42202103-42302103-42402103-42502103-4260

descriptionFemoral Trial CR, Left, #1Femoral Trial CR, Left, #2Femoral Trial CR, Left, #3 Femoral Trial CR, Left, #4Femoral Trial CR, Left, #5Femoral Trial CR, Left, #6 Femoral Trial CR, Right, #1Femoral Trial CR, Right, #2Femoral Trial CR, Right, #3Femoral Trial CR, Right, #4Femoral Trial CR, Right, #5Femoral Trial CR, Right, #6Femoral Trial PS, Left, #1 Femoral Trial PS, Left, #2Femoral Trial PS, Left, #3Femoral Trial PS, Left, #4Femoral Trial PS, Left, #5Femoral Trial PS, Left, #6 Femoral Trial PS, Right, #1Femoral Trial PS, Right, #2Femoral Trial PS, Right, #3 Femoral Trial PS, Right, #4Femoral Trial PS, Right, #5Femoral Trial PS, Right, #6

catalog numberTibial BaseplateTrial #62203-40102203-40202203-40302203-4040

descriptionTibial Baseplate Trial #1

Tibial Baseplate Trial #2 Tibial Baseplate Trial #3Tibial Baseplate Trial #4Tibial Baseplate Trial #5

catalog number2303-22112303-22122303-22132303-22142303-22152303-22212303-22222303-22232303-22242303-22252303-22312303-22322303-22332303-22342303-22352303-2241

descriptionTibial Insert Trial CR, Plained, #1, 9mm Tibial Insert Trial CR, Plained, #1, 11mmTibial Insert Trial CR, Plained, #1, 13mmTibial Insert Trial CR, Plained, #1, 15mmTibial Insert Trial CR, Plained, #1, 18mmTibial Insert Trial CR, Plained, #2, 9mmTibial Insert Trial CR, Plained, #2, 11mmTibial Insert Trial CR, Plained, #2, 13mmTibial Insert Trial CR, Plained, #2, 15mmTibial Insert Trial CR, Plained, #2, 18mmTibial Insert Trial CR, Plained, #3, 9mmTibial Insert Trial CR, Plained, #3, 11mmTibial Insert Trial CR, Plained, #3, 13mmTibial Insert Trial CR, Plained, #3, 15mm Tibial Insert Trial CR, Plained, #3, 18mmTibial Insert Trial CR, Plained, #4, 9mm

Inset Patellar Component

Thickness

Diameter

Thickness

Diameter

INSTRUMENT CATALOG INSTRUMENT CATALOG

30 31

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catalog number2303-22422303-22432303-22442303-22452303-22512303-22522303-22532303-22542303-22552303-22612303-22622303-22632303-22642303-2265

descriptionTibial Insert Trial CR, Plained, #4, 11mmTibial Insert Trial CR, Plained, #4, 13mmTibial Insert Trial CR, Plained, #4, 15mmTibial Insert Trial CR, Plained, #4, 18mmTibial Insert Trial CR, Plained, #5, 9mmTibial Insert Trial CR, Plained, #5, 11mmTibial Insert Trial CR, Plained, #5, 13mmTibial Insert Trial CR, Plained, #5, 15mmTibial Insert Trial CR, Plained, #5, 18mmTibial Insert Trial CR, Plained, #6, 9mmTibial Insert Trial CR, Plained, #6, 11mmTibial Insert Trial CR, Plained, #6, 13mm Tibial Insert Trial CR, Plained, #6, 15mmTibial Insert Trial CR, Plained, #6, 18mm

catalog number2303-40112303-40122303-40132303-40142303-40152303-40212303-40222303-40232303-40242303-40252303-40312303-40322303-40332303-40342303-40352303-40412303-40422303-40432303-40442303-40452303-40512303-40522303-40532303-40542303-40552303-40612303-40622303-40632303-40642303-4065

descriptionTibial Insert Trial PS, #1, 9mmTibial Insert Trial PS, #1, 11mmTibial Insert Trial PS, #1, 13mmTibial Insert Trial PS, #1, 15mmTibial Insert Trial PS, #1, 18mmTibial Insert Trial PS, #2, 9mmTibial Insert Trial PS, #2, 11mmTibial Insert Trial PS, #2, 13mmTibial Insert Trial PS, #2, 15mmTibial Insert Trial PS, #2, 18mmTibial Insert Trial PS, #3, 9mm Tibial Insert Trial PS, #3, 11mmTibial Insert Trial PS, #3, 13mmTibial Insert Trial PS, #3, 15mmTibial Insert Trial PS, #3, 18mmTibial Insert Trial PS, #4, 9mmTibial Insert Trial PS, #4, 11mmTibial Insert Trial PS, #4, 13mmTibial Insert Trial PS, #4, 15mmTibial Insert Trial PS, #4, 18mmTibial Insert Trial PS, #5, 9mmTibial Insert Trial PS, #5, 11mmTibial Insert Trial PS, #5, 13mmTibial Insert Trial PS, #5, 15mmTibial Insert Trial PS, #5, 18mmTibial Insert Trial PS, #6, 9mmTibial Insert Trial PS, #6, 11mmTibial Insert Trial PS, #6, 13mmTibial Insert Trial PS, #6, 15mmTibial Insert Trial PS, #6, 18mm

catalog number2401-20102401-20202401-20302401-2040

descriptionPatellar Trial, Inset, S, ø22mm Patellar Trial, Inset, M, ø25mm Patellar Trial, Inset, L, ø28mm Patellar Trial, Inset, XL, ø32mm

catalog number2403-20102403-20202403-20302403-20402403-2050

descriptionPatellar Trial, Onset, XS, ø26mm Patellar Trial, Onset, S, ø29mm Patellar Trial, Onset, M, ø32mm Patellar Trial, Onset, L, ø35mm Patellar Trial, Onset, XL, ø38mm

catalog number9301-2251

descriptionLower Point Gauge, 1.35mm


descriptionStarter


descriptionT-handle


32 33

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descriptionSpike, Short


description8mm Twist Drill


descriptionExtramedullary alignment tower


descriptionFemoral A/P Chamfer Guide Handle

catalog number9303-22109303-22209303-22309303-22409303-22509303-2260

descriptionP.S. Notch Cutting Jig #1P.S. Notch Cutting Jig #2P.S. Notch Cutting Jig #3P.S. Notch Cutting Jig #4P.S. Notch Cutting Jig #5P.S. Notch Cutting Jig #6

catalog number9303-2110-RA 9303-2120-RA9303-2130-RA9303-2140-RA9303-2150-RA9303-2160-RA

descriptionFemoral A/P Chamfer Cutting Guide #1Femoral A/P Chamfer Cutting Guide #2 Femoral A/P Chamfer Cutting Guide #3 Femoral A/P Chamfer Cutting Guide #4Femoral A/P Chamfer Cutting Guide #5Femoral A/P Chamfer Cutting Guide #6


descriptionDrill guide, 3.2mm

catalog number9303-2102-RA

descriptionDistal Femoral Alignment Guide

catalog number9303-2103-RB

descriptionDistal Femoral Cutting Guide


descriptionFemoral IM Rod, 400mm


descriptionBone File


descriptionFemoral IM Alignment Guide


34 35

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catalog number9303-4101-RB

descriptionPS Reamer


descriptionRound Pin, ø3.2x120mm

catalog number9303-3201 9303-3202

descriptionSpike, ShortSpike, Long

catalog number9303-3203 9303-3204

description3.2mm Twist Drill, Short3.2mm Twist Drill, Long


descriptionQuick Pin Driver


descriptionFemoral Impactor


descriptionFemoral Driver


descriptionPin Extractor


descriptionSpike and Tibial EM Guide Extractor


descriptionPS Housing Punch


descriptionPS Housing Impactor


36 37

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catalog number9401-42019401-42029401-42039401-4204

descriptionPatellar Reamer, S Patellar Reamer, MPatellar Reamer, LPatellar Reamer, XL


descriptionTibial IM Rod

catalog number9303-7101-RD

descriptionFemoral Sizer, Anterior Reference

catalog number9303-80109303-80209303-80309303-80409303-8050

descriptionTool Box U2 Knee Case #1Tool Box U2 Knee Case #2Tool Box U2 Knee Case #3Tool Box U2 Knee Case #4Tool Box U2 Knee Case #5


descriptionPatella Reamer Stopper

catalog number9401-5303-RA9401-5304-RA9401-5305-RA9401-5306-RA

descriptionInset Patellar Clamp Ring, 22mmInset Patellar Clamp Ring, 25mmInset Patellar Clamp Ring, 28mmInset Patellar Clamp Ring, 32mm


descriptionPatellar Resection Clamp

catalog number9401-51139401-51149401-51159401-5116

descriptionPatellar Drill Depth Sleeve, SPatellar Drill Depth Sleeve, MPatellar Drill Depth Sleeve, LPatellar Drill Depth Sleeve, XL


descriptionPatellar Drill


descriptionScrew Driver

catalog number9401-53089401-53099401-53109401-5311

descriptionPatellar Drill Guide 22mmPatellar Drill Guide 25mmPatellar Drill Guide 28mmPatellar Drill Guide 32mm


38 39

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descriptionTibial Punch Handle, MB


descriptionVernier Caliper

catalog number9401-5312-RC

descriptionPatellar Cement Clamp Adapter


descriptionInset Patellar Sizing Ring


descriptionTibial Baseplate Trial Handle


descriptionTibial IM Alignment Guide


descriptionAlignment Rod

catalog number9403-2120-RC9403-2125-RC9403-2220-RC9403-2225-RC

descriptionTibial Cutting Jig, 0˚(Left)Tibial Cutting Jig, 5˚(Left) Tibial Cutting Jig, 0˚(Right) Tibial Cutting Jig, 5˚(Right)


descriptionTibial EM Alignment Guide


descriptionTibial Drill Guide


descriptionTibial Stem Drill


descriptionOnset Patellar Peg Drill


40 41

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descriptionTibial Insert Extractor


descriptionTibial Insert Impactor


descriptionTibial Baseplate Driver


descriptionTibial Baseplate Impactor


descriptionOnset Patellar Resection Guide


descriptionTibial Stylus

catalog number9403-70099403-70119403-70139403-70159403-7018

descriptionGap Gauge, 9mmGap Gauge, 11mm Gap Gauge, 13mmGap Gauge, 15mmGap Gauge, 18mm

catalog number9403-5307 9403-53089403-53099403-53109403-5311

descriptionOnset Patellar Drill Guide, ø26mm Onset Patellar Drill Guide, ø29mmOnset Patellar Drill Guide, ø32mmOnset Patellar Drill Guide, ø35mmOnset Patellar Drill Guide, ø38mm

catalog number9403-60109403-60209403-6030

descriptionCemented Tibial Punch CM, S Cemented Tibial Punch CM, MCemented Tibial Punch CM, L

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Documents

U2 KNEE SYSTEM - projectdesign-nyc.comprojectdesign-nyc.com/pdf/KneeBrochure.pdf · U2 KNEE SYSTEM FLEXION ENGINEERED consistent anterior/posterior sizing incrementation provides