Abstract
Introduction
The ideal method of fixation for femoral components in total hip arthroplasty (THA) is unknown. While good results have been reported for cemented and uncemented components, there is relatively little published prospective data with twenty years or more of follow up.
Results of the Furlong femoral component have been presented at an average of 17 years follow up. We have extended this follow up period to an average of 22.5 years with a minimum of 22 years and a maximum of 25 years.
Methods
This study included all patients treated using the Furlong femoral component between 1986 and 1991. Patients were reviewed preoperatively and then at 6, 12, 26 and 52 weeks post operatively and annually thereafter.
They were assessed clinically and radiographically and the Merle d'Aubigne Postel hip score was calculated at each visit. A Visual Analog Score (VAS) was also recorded to assess patient satisfaction with their procedure. A Kaplan Meier survival analysis was performed.
Results
Sixty patients (72 hips) were included (15 males, 45 females). Bilateral procedures were performed in 12 patients. Mean age was 82.9 years (70 to 100 years). Mean follow-up was 22.5 years (20 to 25).
The Merle d'Aubigne Postel hip score at final follow up was 5.5 (pain), 3.8 (mobility) and 3.3 (function) for function. Seven patients required revision surgery. Survival of the femoral component with revision for any reason as the end point was 90.3%.
There were no planned revisions up to the time of final follow up.
Conclusion
The Furlong prosthesis results in improvement of pain in the long term. Survival of this component is comparable to the best results for primary THA with any means of fixation.
