Management of Fracture Shaft of Humerus

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    34 Pb Journal of Orthopaedics Vol-XII, No.1, 2011

    Original Article

    Management of fracture shaft of humerus -

    open versus closed antegrade nailing

    A S Sidhu*, H S Mann**, Gursukhman D S Sidhu***, A Banga****, A Bassi****, M Gupta *****

    * Professor and Head, ** Assistant Professor, *** PG Research Fellow, **** PG Student,

     Department of Orthopaedics,

    Government Medical College, Patiala.

    ABSTRACT

     Fractures of the shaft of humerus are difficult to treat. Nonunion, stiffness and inconvenience after conservative

    treatment of shaft of humerus are very common. So, under present conditions and advancements in surgical 

     skills, techniques and good quality implants, ORIF has become gold standard for treatment of fracture shaft 

    of humerus. 20 cases were treated with open antegrade nailing while 20 with closed antegrade nailing of 

    humerus (with C arm). Fractures were classified according to AO fracture classification. Patients wereassessed clinically and radiologically. Constant scoring system and Mayo Elbow Performance Score were

    used to assess the function of the shoulder and elbow. Results were analysed prospectively. Outcome in

    Closed Antegrade nailing group was observed to be excellent in 35% cases, good in 50% cases, satisfactory

    in 10% cases and poor in 5% cases. Out come in Open Antegrade nailing group was observed to be excellent 

    in 15% of cases, good in 45% of cases, satisfactory in 30% cases and poor in 2% cases. In our study of 40

    cases, radiological union occurred in all cases. Complications like nail protrusion, superficial infection,

    delayed union, gap at fracture site, shoulder and elbow pain were encountered. Finally there was no

     significant difference in duration of operation, union time and shoulder and elbow function in two groups.

    We feel that there is a long learning curve for closed antegrade interlock nailing of humerus and most of the

    complications can be avoided and results improved, if correct technique is followed.

    Keywords: Humeral Shaft Fractures, Antegrade Nailing, Nonunion

    Corresponding Author : 

    Dr A S Sidhu 

     Professor and Head, Department of Orthopaedics ,

    Government Medical College, Patiala

     E mai l: [email protected]

    INTRODUCTION

    Fractures of the humerus have challenged medical practitioners

    since the beginning of recorded medical history1. Fracture shaft

    of humerus is very common representing 3–5 % of all fractures.

    The comprehensive AO classification is preferred in studies of 

    humeral fractures2, 3.

    Humeral shaft fractures can be treated nonoperatively,

    which includes hanging arm cast, velpeau dressing, coaptation

    splint or U slab, shoulder spica cast, functional brace and rarely

    skeletal traction4-9. However, non-operative treatment requires

    a long period of immobilization, which carries a high risk of 

    shoulder stiffness and causes great inconvenience to the

     patient10. Furthermore, nonunion after conservative treatment

    of shaft of humerus is common and treatment of non-union of 

    any bone is a cumbersome procedure7, 11, 12.

    So, under present conditions and advancements in surgical

    skills, techniques and good quality implants, open reduction

    and internal fixation has become gold standard for treatment of 

    fracture shaft of humerus. This helps us in allowing early

    mobilization and decreasing morbidity to the patient13.

    Kuntscher originally described a locking nail; it was until the

    late 1970’s when Klemm and Schellmann and later Grosse and

    Kempf improved this technique14, 15. Together with improved

    fluoroscopy techniques, these new implants made locking

    intramedullary nailing very popular, being minimally invasive

    method to treat long bone fractures15.

    Despite technical improvements of humeral intramedullary

    nails, results after Seidel’s initial good results regarding union

    rate and shoulder joint function have been and still are very

    controversial8, 16, 17. Humeral nailing is associated with brief 

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    36 Pb Journal of Orthopaedics Vol-XII, No.1, 2011

    Sidhu et al 

    Early operative complications occurred in 4 cases of closedantegrade nailing group. 1 case (5%) had more than 5mm

     proximal nail protrusion of nail. Also in 2 cases (10%) early

    superficial infection occurred while in another 1 case (5%) there

    was more than 2mm gap at the fracture site. In open ante grade

    nailing group only 10% cases had superficial infection as early

    operative complication.

    In late operative complications 10 cases were of closed

    antegrade nailing and 8 cases were of open antegrade

    nailing group. 6 cases (30%) of closed antegrade nailing

    had shoulder pain while 2 cases (10%) had elbow pain. 1 (5%)

    case each of delayed union and shoulder impairment was also

    observed. The cases with elbow pain also had ipsilateral fore

    arm plating done. While in open antegrade nailing group

    25% had shoulder pain 1 had elbow pain and 2 had delayed

    union. In closed antegrade nailing group, union occurred in all

    cases although 1 case required secondary bone grafting for 

    attaining union. In open antegrade nailing group union

    occurred in all cases although 2 cases required secondary bone

    grafting.

    In closed antegrade nailing group 80% cases had excellent

    constant score (>90 points) corresponding to excellent shoulder 

    function, 4 (20%) cases had score between 75-89 corresponding

    to good score . In Open Antegrade nailing group, 60% of cases

    had excellent constant score21 (>90 points) corresponding to

    excellent shoulder function, 30% of cases had score between75-89 corresponding to good score and 2 (10%) cases had

    score between 60-74 corresponding to fair score.

    In closed antegrade nailing group, 75% cases had excellent

    Mayo’s score22 (>90 points) corresponding to excellent elbow

    function, 20% of cases had score between 75-89 corresponding

    to good score and rest 1 case had score between 60-74corresponding to fair score. In open antegrade nailing

    group, 85% of cases had excellent (>90 points) corresponding

    to excellent elbow function and 10% of cases had score

     between 75-89 corresponding to good elbow function while 1

    case had score between 60-74 corresponding to fair elbow

    function.

    According to inference, outcome in Closed Antegrade

    nailing group was observed to be excellent in 35% cases, good

    in 50% cases, satisfactory in 10% cases and poor in 5% cases.

    Out come in Open Antegrade nailing group was observed to

     be excellent in 15% of cases, good in 45% of cases, satisfactory

    in 30% cases and poor in 2% cases.

    DISCUSSION

    The indications for surgical management and internal fixation

    of fractures of the shaft of the humerus are very clear. Interlock 

    nailing is emerging as the gold standard for operative treatment,

    with high rates of fracture healing and consolidation and good

    outcome with no adverse effect of immediate full weight-bearing

    on fracture union or alignment. The advocates of Intramedullary

    fixation have highlighted various disadvantages of open

    reduction and internal fixation with other methods of 

    osteosynthesis which requires extensive open surgery with

    stripping of soft tissues from bone, a longer operative time and

    less secure fixation, especially in the elderly with osteoporotic bone and if crutch walking is required in multiple injuries

     patients. The Intramedullary fixation is reported to involve a

    simpler technique with minimal exposure and shorter operative

    time with less blood loss. The preservation of fracture

    hematoma, soft tissue and periosteum around the fracture that

    occurs with closed unreamed nailing has been proposed for 

     Figure 1: Results of open antegrade Nailing at 6 months. Figure 2: Results of closed antegrade nailing at 6 months.

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    37 Pb Journal of Orthopaedics Vol-XII, No.1, 2011

    high rates of union and good results, with no risk of iatrogenic

    radial nerve palsy. Locked nailing is said to provide a rotationally

    stable fixation and avoid the tendency of various unlocked

    nails to back out. Most of the studies support our observations

    that A type of fracture pattern is most common of AO fracture

    classification pattern seen23, 24, 25. It is documented that humerus

    responds poorly to distraction and rate of delayed / non-union

    is significantly increased in these cases26. Similar finding was

    seen in our study; one of the case that had significant

    distraction at fracture site went into delayed union and second

     procedure in form of bone grafting was required to achieve

    union. Flinkkila et al27, in their study concluded that shoulder 

     joint range of motion and strength does not recover to normal

    after humeral shaft fracture, and antegrade Intramedullary

    nailing if performed properly is not responsible for shoulder 

     joint impairment.

    CONCLUSION

    In conclusion, it can be derived that there is no significant

    difference in duration of operation, union time and shoulder 

    and elbow function in two groups. There is a long learning

    curve for closed Antegrade interlock nailing of humerus and

    most of the complications can be avoided and results improved,

    if correct technique is followed. A larger randomized trial or 

    may be a multi-center trial can further improve the interpretation

    of the results.

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     Fracture shaft humerus - open vs closed antegrade nailing 

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