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Total hip arthroplasty with an uncemented hydroxyapatite-coated tapered titanium stem: results at a minimum of 10 years’ follow-up in 104 hips

  • Original article
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Journal of Orthopaedic Science

Abstract

Background

The purpose of this study was to evaluate the minimum 10-year results of primary total hip arthroplasty using an uncemented, hydroxyapatite-coated tapered stem. Radiological signs of bone remodeling are also presented.

Methods

We followed a consecutive series of 105 patients (115 hips), who had had an uncemented, proximally hydroxyapatite-coated Bi-Metric femoral component for a mean of 12.2 years (range 10.0–14.9 years). The average age at operation was 52 years. Detailed clinical and radiological analyses were performed after a minimum of 5 and 10 years. Eight patients (10 hips) had died, and one patient was lost to follow-up, leaving 104 hips for final evaluation. The clinical result was evaluated by the Harris Hip Score, complications, and thigh pain.

Results

All patients still had their femoral components in place at the final follow-up. The average Harris Hip Score after 10 years was 92 (range 50–100) with no deterioration over time. Radiologically, several signs of progressive remodeling were identified, but no stem showed signs of loosening.

Conclusions

The intermediate clinical and radiological results with this stem are encouraging. In the hands of various surgeons, the stem has performed well in a young, high-risk population.

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Bodén, H., Salemyr, M., Sköldenberg, O. et al. Total hip arthroplasty with an uncemented hydroxyapatite-coated tapered titanium stem: results at a minimum of 10 years’ follow-up in 104 hips. J Orthop Sci 11, 175–179 (2006). https://doi.org/10.1007/s00776-005-0986-5

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  • DOI: https://doi.org/10.1007/s00776-005-0986-5

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