May 24, 2013
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Index implant impacts difficulty of salvage hip arthroplasty

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Researchers report success in using salvage hip arthroplasty to treat failed proximal femur fractures but noted a higher complication in their series compared to other primary total hip arthroplasty results in the literature.

“Although we originally assumed that fracture type would account for varied surgical and perisurgical issues, we found that most of these issues instead were attributable to index implant choice,” Alexander M. DeHaan, MD, and colleagues wrote in their study. “Thus, the implant used in the index surgery should be carefully considered when planning revision hip arthroplasty for failed proximal femur fixation.”

The 46 patients reviewed in this study underwent a salvage hip arthroplasty (SHA) after a failed proximal femur fracture that was fixed with cannulated screws, sliding hip screws or intramedullary nails, according to the abstract. Failed femoral neck fixation was less demanding intraoperatively than failed peritrochanteric fractures.

When comparing index implants, cannulated screws had a lower rate of intraoperative morbidity than sliding hip screws or intramedullary nails. Researchers said the differences between sliding hip screws and intramedullary nails were less apparent. They noted similar complications and rates of revision regardless of fracture type of fixation device, according to the abstract.

Disclosure: DeHaan has no relevant financial disclosures.