Similar long-term outcomes seen after THA with cemented and cementless stems

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Similar long-term outcomes seen after THA with cemented, cementless stems
Kim Y et al. J Arthroplasty. 2016

Investigators of this study found outstanding long-term fixation of the acetabular shell and femoral stem among patients younger than 50 years who underwent simultaneous bilateral total hip arthroplasty with a cemented stem in one hip and an uncemented component in the other.

Researchers evaluated 171 patients who underwent total hip arthroplasty (THA) with a minimum follow-up of 25 years and a mean follow-up of 26.1 years. The mean age at surgery was 47.7 years. Patients’ hips were randomized to receive treatment with either a cemented or cementless stem, and the contralateral hip received the other implant.

Investigators assessed patients at 3 months and 1 year, and then at either 2 years or 3 years after arthroplasty with radiographs, Harris Hip score, WOMAC index score, VAS for pain and the University of California, Los Angeles (UCLA) activity score. CT scans were performed in all patients at the last follow-up. Investigators also used the Kaplan-Meier analysis to determine survival rate of the prosthesis.

Findings showed the mean Harris Hip, WOMAC and UCLA activity scores were not significantly different for cemented and uncemented stems. Investigators noted at 26.1 years, both cemented and uncemented groups had similar survival rates for the acetabular and femoral components. ‒ by Monica Jaramillo
 

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