Short-Term Results of Novel Constrained Total Hip Arthroplasty

Orthopedic Reviews
Thomas B PaceStephanie Tanner

Abstract

Constrained acetabular components have only been recommended as a salvage option for the persistently unstable total hip arthroplasty (THA), due to limited range of motion and less than satisfactory component failure rates. This is a retrospective review of 137 patients with 154 consecutive primary constrained THAs performed between November 2003 and August 2007. We reviewed serial radiographs, postoperative complications, groin/thigh pain, and compared preoperative and postoperative Harris Hip Scores. With a mean follow-up of 6 years, there was 1.9% dislocation rate, 0% component failure rate, and 2.6% infection rate. Seven patients reported continued groin pain, and three had continued thigh pain. One patient showed radiographic evidence of 1 mm polyethylene wear. Radiographic review showed no evidence of osteolysis or stem subsidence. Harris Hip Scores improved from a mean of 68.8 (range 58-87) preoperatively to 98.9 (range 65-100) at final clinical assessment. This constrained acetabular prosthesis had a dislocation rate of less than 2%, with 0% component failure rate at a minimum of 2 years of follow-up suggesting this prosthesis may be a viable alternative for patients at risk for instability or those known to have recurr...Continue Reading

Citations

Apr 30, 2016·International Journal of Surgery Case Reports·Aysha Rajeev, Paul Banaszkiewicz
Apr 13, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Samar AlmubarakKartikM Varadarajan

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Methods Mentioned

BETA
total hip arthroplasty
total hip arthroplasties
sedation
primary hip arthroplasty

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