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High survival rate at long-term follow-up seen with tapered femoral component in young patients
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Use of a tapered femoral component for primary total hip arthroplasty in patients younger than 50 years had a high rate of survival at 29 years, according to results.
Researchers reviewed 108 consecutive uncemented total hip arthroplasties (THAs) performed between 1983 and 1990 using the Taperloc (Zimmer Biomet) femoral component in 91 patients younger than 50 years of age. Researchers evaluated Harris Hip score (HHS), radiographic results, complications and Kaplan-Meier survivorship.
Results showed 8% of femoral components were revised in 108 hips, with five well-fixed stems removed during acetabular revision; three stems revised for infection; and one stem exchanged because of a peroneal nerve palsy. Researchers noted one hip had distal femoral osteolysis and no hips were revised for aseptic loosening.
At 29-years follow-up, Kaplan-Meier analysis showed a 90% survival rate when revision of the femoral component for any reason was the end point and survivorship of 100% when revision of the stem for aseptic loosening was the end point. Researchers noted an increase in the mean HHS from 55 points preoperatively to 92 points at final follow-up. – by Casey Tingle
Disclosures: McLaughlin reports he is a paid consultant for and receives royalties and research support from Biomet. Please see the full study for a list of all other authors’ relevant financial disclosures.
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