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Traumatic conditions of the hip

Traumatic conditions of the hip. Dislocation of the hip. Anterior dislocation Posterior dislocation, more common Central dislocation (direct thrust along the line of the femoral neck → fracture acetabulum → femoral head displaced into the pelvic cavity. Posterior dislocation of the hip.

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Traumatic conditions of the hip

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  1. Traumatic conditions of the hip

  2. Dislocation of the hip • Anterior dislocation • Posterior dislocation, more common • Central dislocation (direct thrust along the line of the femoral neck → fracture acetabulum → femoral head displaced into the pelvic cavity

  3. Posterior dislocation of the hip • Longitudinal thrust along shaft of femur when hip is flexed & adducted (dash board accident) → head of femur displaced backward out of the acetabulum • Clinically: The affected leg is: • Internally rotated • Adducted • Shortened (fig.)

  4. Complications • Immediate complications: Sciatic nerve injury → drop foot & numbness over the outside of the calf • Late complications: avulsion of ligamentum teres from the acetabulum → cut off blood supply to femoral head → avascular necrosis → OA

  5. TREATMENT • Manipulative reduction • Traction (4 weeks) → healing of capsular tear • Weight bearing • Regular x rays monthly for the 1st 4 months for early detection of avascular necrosis

  6. Treatment of complications • Operation may be necessary to free the sciatic nerve • Avascular necrosis is treated • in early stages by avoidance of WT bearing until texture of femoral head returns to normal. • In late stages by total hip replacement, arthrodesis, osteotomy, or bone grafting

  7. Anterior dislocation of the hip • Force that abducts the extended hip → femoral head displaced below & in front of the acetabulum • Clinically: the affected leg is: • Abducted • Externally rotated • Treatment: • Manipulative reduction • 3 weeks traction

  8. Central dislocation of the hip • Direct violence → drives femoral head through floor of acetabulum → • Damage of articular surfaces • Intrapelvic haemorrhage • Hypovolemic shock • Conservative treatment • Longitudinal traction for 6 weeks • Mobility of the hip • Surgical treatment • Reconstruction of the destroyed acetabulum • Total hip replacement

  9. Fractures of upper end of femur • Risk factore: • Age: risk doubles over age of 50 • Sex: women > men 2-3 times • Race: caucasian > negroes 2-3 times • Medical history of previous hip fracture

  10. Subcapital fracture of the femoral neck • Grade I Head of femur is abducted & impacted with the neck • Clinically: • Little pain • Trivial injury • No shortening or rotational deformity • Active movement may be possible

  11. Grade II Undisplaced fracture ST are attached providing blood supply • Grade III • Femur is adducted at fracture site • Head is separated from the neck • Severe pain in hip when standing or moving the affected limb • Injured foot & leg are externally rotated

  12. Grade IVGross rotation of both fragments with complete loss of contact between the fragments

  13. Treatment • Grade II → - compression screws 2. Grade III & IV → • hemiarthroplasty (Austin-more prosthesis) • Total hip replacement

  14. Intertrochanteric fractures • Common in elderly people • Equal frequency in men & women • Often comminuted • Lesser trochanter frequently avulsed & pulled upwards by iliopsoas • Treatment • Compressiom screws and plate • Early mobilization • Early ambulation

  15. Fractures of femoral shafts in adults • Vigorous trauma • Hypovolaemic shock • Fracture line is transverse or comminuted • Severe displacement • residual stiffness of knee • Non-union with open fractures

  16. Conservative treatment • Temporary traction for 8 weeks (fixed or balanced- skin or skeletal) (fig.) • Followed by hinged cast brace • Weight bearing is then encouraged Operative treatment • Locked intramedullary nail

  17. Femoral shaft fractures in infancy • Causes: • Indirect rotatory twisting strain • Difficult delivery with breech presentation • Treatment: • 3-4 weeks fixed traction on Thomas splint • In infants less than 3 years → gallows traction

  18. Supracondylar fractures • Treated by Thomas splint with knee flexion Fractures of femoral condyles • Intra-articular fracture • Internal fixation with plate and screws is necessry to: • Reduce the fractured articular surfaces accurately • Allow early mobilization

  19. Physical therapy program during immobilization period • To prevent respiratory complications → breathing exercises. • To prevent circulatory complications → - circulatory exercises - changing position every 2 hours - alternating air mattress 3. To prevent stiffness, weakness & atrophy of the free parts → - ROM exercises - strengthening exercises 4. To prevent weakness of immobilized parts → static & isometric exercises

  20. Rehabilitation after ORIF of hip fractures • Bed mobility while maintaining proper alignment of the operative limb • Lying flat on back for 1 hour/day to avoid hip flexion contractures. • Forced hip flexion or rotation (e.g. twisting forward or to either side)is to be avoided for the 1st 7-10 days postoperatively. • Patients are allowed to assume a semireclined position after 24 houurs.

  21. 5. Patients are assisted into protectively positioned side-lying as soon as possible(2-3 days postoperatively). • Side lying position greatly aids in: - toiletry - pulmonary postural drainage - prevention of decubitus ulcers 6. An over head trapeze is essential during the 1st few days postoperatively (using elbows & heels to elevate hips→ 4 times body weight force acts on the hip).

  22. 7. Gait training with walker or crutches if balance & mobility are good. (touch down gait takes about 90-95% of load off hip joint, compared to 80% weight reduction with NWB gait 8. Over 12-16 weeks gait pattern will evolve into full weight bearing based on: - surgical procedure - area of fracture - radiographic findings - patient comfort

  23. 9. Active exercises through a comfortable range 10. Pool exercises to regain strength, proprioceptive sense & mobility. Nb. • Tying a shoe with foot on floor requires 124o hip flexion • Ascending stairs requires 67o hip flexion • Sitting down on a chair requires 104o hip flexion

  24. Fractures of upper end of femur(ORIF) Day 1: • Quadriceps sets • hamstrings sets • gluteal sets • ankle pumps

  25. Active assisted hip abduction & adduction • Supine leg slides for flexion of hip & knee • Upper extremity exercise

  26. Day 2: • Ambulation with TDWB with walker, then PWB with walker Days 3-7 • SLR in all directions • Thomas stretch of anterior capsule and hip flexors

  27. 1-2 weeks • Discharge criteria: • Get out of bed independently • Able to ambulate 50 feet with assistive device • In & out of bathroom independently. • Standing hip abduction, adduction, flexion, and extension & hip and knee flexion exercises. 2 -6 weeks • Stationary bicycle, pool exercises, and treadmill • Progress ambulation from walker to use of a cane (if Trendelendburg test is –ve)

  28. Femoral shaft fracture treated with intramedullary nail • Phase 1: 0-6 weeks: • Quadriceps, hamstrings, gluteal sets & ankle pumps • SLR in all planes • Knee active ROM exercises • Stationary bicycle • Weight bearing to tolerance (if nail diameter is 12mm or more) an progress to full weight bearing as tolerated within 6-12 weeks. If nail diameter is less, begin weight bearing with 25kg.

  29. Phase 2 (6 weeks -3 months) • Scale technique for weight bearing (5-10 kg increase weekly) • Isokinetic exercises • CKC exercises Phase 3 (3-6 months) • Full weight bearing • Full knee & hip ROM • Full squat • Ascend & descend stairs full weight bearing • Thigh circumference = uninjured side Phase 4 (> 6 months) • Return to athletic activity • Full work & recreational activity

  30. Femoral shaft fracture treated with plate & screws • Same as for intra-medullary nail with exception that: • NWB for 8-12 weeks • Weight bearing is not progressed until radiological union (3-6 months)

  31. Intraarticular fractures with IF • Phase 1 (0-6 weeks) • CPM in first 24-48 hours (0-90 degrees) • OKC exercise e.g. SLR, quadriceps sets • TDWB Phase 2 (6-12 weeks) • Stationary bicycle • PWB using the scale technique • CKC exercises

  32. Phase 3 (3-6 months) • FWB Phase 4 (>6 months) • Return to work & recreational activity • Avoid excessive squatting & jumping & contact sports for 6-12 months

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