Revision risk of salvage compared with acute total hip arthroplasty following femoral neck fracture: an analysis from the Dutch Arthroplasty Register
DOI:
https://doi.org/10.2340/17453674.2023.17743Keywords:
Arthroplasty, Fractures, Hip, SalvageAbstract
Background and purpose: There is no consensus on the treatment of patients with femoral neck fractures between internal fixation (IF) or directly treated with a total hip arthroplasty (fracture-THA) in particular for the age group 60–70 years. Failure of IF is not uncommon, resulting in salvage total hip arthroplasty (salvage-THA). The aim of our study was to compare revision rates of salvage-THA with fracture-THA and osteoarthritis (OA)-THA.
Patients and methods: Revision rates and reasons for revision were compared. Data collected in the Dutch Arthroplasty Register (LROI) between 2007 and 2018 was used. The study included 4,310 salvage-THAs, 12,159 fracture-THAs, and 274,147 OA-THAs. We performed Kaplan–Meier survival analyses and Cox regression to evaluate THA survival.
Results: No statistically significant difference in revision rates between salvage-THAs and fracture-THAs was found (HR 1.0, 95% CI 0.7–1.3) whereas the revision rate was higher compared with OA-THAs (HR 1.3, CI 1.0–1.5). The 5-year revision rate was 5.0% (CI 4.4–5.8) in salvage-THAs, 4.5% (CI 4.1–5.0) in fracture-THAs, and 3.1% (CI 3.0–3.2) in OA-THAs. A higher revision rate for infection was found in salvage-THAs in comparison with fracture-THAs (HR 1.6, CI 1.0–2.3).
Conclusion: We found no difference in revision rates for salvage-THAs compared with fracture-THAs. The risk of revision for infection was higher for salvage-THA.
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