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Injury PathologyInjury Pathology
Injury CausesInjury CausesCompression:Compression: ImpactImpact– Contusion, FracturesContusion, Fractures
Tension:Tension: StretchingStretching– Strains, Sprains, TearsStrains, Sprains, Tears
Shearing:Shearing: FrictionFriction– Blisters, scrapesBlisters, scrapes
Other Injury CausesOther Injury Causes
Bending:Bending: BendingBending – FracturesFractures
Torsion:Torsion: TwistingTwisting– Fractures, Sprains, StrainsFractures, Sprains, Strains
Injury ClassificationInjury Classification
Acute:Acute:– Sudden onsetSudden onset– Result from a specific mechanismResult from a specific mechanism– Examples: Broken bone, bruise, cut, etcExamples: Broken bone, bruise, cut, etc
Chronic:Chronic:– Develop overtime Develop overtime – Specific onset often unknownSpecific onset often unknown– Caused by repeated traumaCaused by repeated trauma– Overuse injuriesOveruse injuries– Examples: Shin splints, tendonitis, etcExamples: Shin splints, tendonitis, etc
Acute Injuries: SkinAcute Injuries: Skin
Contusion:Contusion: bruise resulting from a bruise resulting from a direct blowdirect blow
AbrasionsAbrasions: caused by friction or : caused by friction or scrapingscraping
PuncturesPunctures: narrow stab wound: narrow stab wound
Cuts: Cuts: – Laceration: irregular tear Laceration: irregular tear – Incision: clean cut with sharp objectIncision: clean cut with sharp object– Avulsion: complete tissue tearsAvulsion: complete tissue tears
Acute Injuries: Soft TissueAcute Injuries: Soft Tissue
Sprains:Sprains: ligament injury caused by ligament injury caused by high tensile force high tensile force
Strains:Strains: tendon or muscle injury tendon or muscle injury caused by high tensile forcecaused by high tensile force
Muscle Cramps:Muscle Cramps: painful involuntary painful involuntary muscle contractionsmuscle contractions
Sprain – Grading Scale Sprain – Grading Scale
Strain – Grading Strain – Grading ScaleScale
First degree (mild):First degree (mild):– Partial tearing, stretching of Partial tearing, stretching of
muscle/tendon with minimal pain, full muscle/tendon with minimal pain, full strength, no deformitystrength, no deformity
Second degree (moderate):Second degree (moderate):– Partial tearing of tissue, detectable Partial tearing of tissue, detectable
weakness, moderate pain, strength weakness, moderate pain, strength weaknessesweaknesses
Muscle Strain – 3Muscle Strain – 3rdrd Degree Degree
Severe Injury:Severe Injury:– Complete rupture of tissue, loss of ROM, Complete rupture of tissue, loss of ROM,
severe pain, detectable deformity, little severe pain, detectable deformity, little to no strengthto no strength
Acute Injuries: OtherAcute Injuries: OtherCartilage TearCartilage Tear: Shear/twisting force, : Shear/twisting force, can also be from compressioncan also be from compression– Meniscus, labrumMeniscus, labrum
Dislocation/Subluxation: Dislocation/Subluxation: (Shoulder, (Shoulder, Patella)Patella)– Disloc: complete separationDisloc: complete separation– Sublux: partial Sublux: partial
Fractures: Fractures: – Closed: Avulsion, Epiphyseal, StressClosed: Avulsion, Epiphyseal, Stress– OpenOpen
FracturesFractures
Open or Compound FracturesOpen or Compound Fractures
Avulsion FracturesAvulsion Fractures
Epiphyseal FractureEpiphyseal Fracture
Stress FractureStress Fracture
Chronic InjuriesChronic Injuries
Muscle StrainMuscle Strain
Tendonitis Tendonitis
Stress FractureStress Fracture
BursitisBursitis
Unit SummaryUnit SummaryWhat is the difference between a subluxation What is the difference between a subluxation and a dislocation?and a dislocation?
Describe the difference between a grade 1 and Describe the difference between a grade 1 and grade 3 sprain.grade 3 sprain.
Describe the difference between a grade 2 and Describe the difference between a grade 2 and grade 3 strain.grade 3 strain.
Describe 3 types of fractures.Describe 3 types of fractures.
What is a stress fracture?What is a stress fracture?
What is an avulsion fracture?What is an avulsion fracture?
Name 3 types of mechanical forces that cause Name 3 types of mechanical forces that cause injuries.injuries.
What are the 2 main types of injuries?What are the 2 main types of injuries?