Usual mechanism is blow to extended knee with externally rotated foot
May also occur with sudden lateral cut or twisting at the ankle or knee
Acute traumatic dislocations more common in males
Chronic dislocation seen more commonly in women/teenage girls, typically little or no swelling
May be associated with hemarthrosis
Chronic dislocation more common in females
Typically little or no swelling
May be associated with hemarthrosis
Typically little or no swelling
Patella dislocation
Knee dislocation
Patella fracture
Knee fractures
Elbow dislocation
Ankle dislocation
Segond fracture
Tibial plateau fracture