Abstract

To explore the causes of early failure after primary total hip arthroplasty (THA). The causes of early THA failures were retrospectively reviewed for 215 cases of revision THA between January 2007 and December 2013. The causes of early failures of primary THA in decreasing frequencies were infection (50.7%, 109/215), aseptic loosening (31.6%, 68/215), dislocation (8.8%, 19/215), periprosthetic fracture (3.7%, 8/215), implant-related failure (2.3%, 5/215), heterotopic ossification (1.4%, 3/215) and liner wear (0.9%, 2/215). The top three causes of early failure after primary THA are infection, aseptic loosening and dislocation.

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