Total Hip Arthroplasty Complications
A 78-year-old woman presents to the emergency department 6 weeks after primary total hip arthroplasty (posterior approach) with sudden onset of severe right hip pain and inability to bear weight. She reports bending forward to tie her shoes when she felt a "clunk" and immediate pain. Examination reveals a shortened, internally rotated limb. Radiographs confirm posterior hip dislocation with the prosthetic femoral head located behind the acetabular component. Component positioning appears within acceptable ranges. Regarding dislocation after total hip arthroplasty:
Mark each as TRUE or FALSE
Dislocation is one of the most common complications after THA with incidence of 2-3% for primary THA...
The posterior approach has higher dislocation rates (2-4%) than the direct anterior or anterolateral...
Dislocation is rare after THA (less than 0.1%); the anterior approach has higher dislocation rates t...
Component positioning targets: acetabular cup inclination 30-45 degrees (abduction) and anteversion ...
First-time dislocation management: closed reduction under sedation/anesthesia, protected weight bear...
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Click T (True) or F (False) for each option