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HIP DISLOCATION. Dr. Niyaz. Posterior Dislocation. More common than anterior RTA , fall from height. Mechanism of injury.

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  2. Posterior Dislocation • More common than anterior • RTA , fall from height

  3. Mechanism of injury • Someone seated in a car without fastening seatbelt……in an event of a crash ,…………….. the knee joint strikes the dashboard,…… hip flexes and adducts and ………………dislocates with or without fracture of acetabulum

  4. Attitude • Flexed • Adducted • Shortened • Internal rotated

  5. Associated injuries • Fracture of acetabulum • Fracture head or neck of femur • Shaft of femur • Fracture patella or around knee

  6. investigations • Xray pelvis with both hips • CT scan • USG pelvis and abdomen

  7. treatment • Emergency closed / open reduction

  8. complications Early • Sciatic nerve injury • Vascular injury • Femoral shaft fractures

  9. Complications- late • Avascular necrosis • Myositis ossificans • Unreduced dislocation • osteoarthritis

  10. Anterior dislocation • Rare compared to posterior • Occurs when weight falls on the back of a miner or building labourer • RTA / air crash

  11. Anterior dislocation

  12. Clinical feature • Leg lies abducted, flexed and externally rotated • Femoral head is palpated anteriorly • Two types:-superior type and inferior type

  13. investigation • Xray- ap and lateral view • If any doubt – CT scan

  14. treatment • Longitudinal traction with gradual flexion • Assistant applies lateral pressure to the medial thigh

  15. Central dislocation • Caused by a fall on the side or a blow over the greater trochanter • Causes fracture of acetabular floor

  16. Central dislocation

  17. Thank you

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