Complications
A 72-year-old woman presents to the emergency department 6 weeks after primary total hip arthroplasty with acute hip pain after rising from a low chair. Her leg is shortened, internally rotated, and adducted. Radiographs confirm posterior hip dislocation. This is her first dislocation episode. Her original surgery was via a posterior approach for osteoarthritis. Regarding hip instability and dislocation after total hip arthroplasty:
Mark each as TRUE or FALSE
Dislocation occurs in 1-5% of primary THA and up to 10-25% of revision THA; the posterior approach h...
Risk factors include surgical approach (posterior without repair), component malposition (cup anteve...
Anterior dislocation is more common than posterior; smaller femoral head sizes reduce dislocation ri...
Management of first dislocation is closed reduction under sedation followed by hip brace and activit...
Surgical options for recurrent instability include component revision to correct malposition, larger...
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Click T (True) or F (False) for each option