Survival Rate and Application Number of Total Hip Arthroplasty in Patients with Femoral Neck Fracture: An Analysis of Clinical Studies and National Arthroplasty Registers.

Objectives Total hip arthroplasty (THA) is an increasingly popular treatment option for fractured neck of femur (NOF). The primary aim of this study was to systematically review all literature on primary THA and hemiarthroplasty (HA) after fractured NOF to calculate an overall revision rate. Furthermore, we wanted to compare primary THA implantations after fractured NOF between different countries in terms of THA number per inhabitant.

Methods All clinical studies on THA and HA for femoral neck fractures between 1999 and 2019 were reviewed and evaluated with a special interest on revision rate. Revision rate was calculated as “revision per 100 component years”. THA registers were compared between different countries with respect to the number of primary implantations per inhabitant.

Results and Conclusion THA studies showed a mean revision rate of 11.8% after ten years, which was lower than a 24.6% 10-year revision rate for HA. We identified eight arthroplasty registers that revealed an annual average incidence of THA for fractured NOF of 9.7 per 100,000 inhabitants.

This study showed that patients with THA were less likely to be revised at ten years compared to HA. We found similar annual numbers of THAs for fractured NOF per inhabitant across countries. The results of this analysis can be used to rank present and future national THA numbers within an international context.

Stichwörter total hip arthroplasty; hemiarthroplasty; femoral neck fracture; incidence; revision rate; arthroplasty register

Publication History

Article published online:
15 October 2020