loose bodies
Hip Dislocation
Incidence
Young men
Posterior / Anterior 9:1
Aetiology
High velocity injury
- head direction at impact decides direction of dislocation
Anterior Dislocation
Externally rotated & abducted leg
- flexion = inferior dislocation
Loose Bodies
Source
OCD
OA - Osteophytes
Meniscus
Symptoms
Pain
Locking
Clicking
Can cause chondral damage
Xray
OA Loose Bodies
Osteoarthritis & Stiffness
Epidemiology
Relatively rare
Average age 50
Men 4:1 Women
Usually dominant arm
Aetiology
Primary
- associated with strenuous manual labour
Secondary
- trauma
- OCD
- synovial chondromatosis
- valgus extension overload / MCL insufficiency
Arthroscopy
Indication
Diagnostic
Pain / Stiffness / Locking
Instability
- exclude OCD
Assess syndesmosis
Therapeutic
Synovitis
Osseous lesions / Tibiotalar impingement spurs
Osteochondral defects