<unk> s are rare: they represent about 1 in 5,000 orthopedic injuries, and about 1<unk>  occurs annually per 100,000 people. Males are more often affected than females, and young adults the most often.
Knee dislocation
Hip dislocation
Medial knee injuries
Elbow fracture
Acetabular fracture
Hip fracture
Femoral fracture
Patella fracture