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‘Encouraging’ midterm results seen with THA using a tapered stem and alumina bearing

Hwang BH. J Arthroplasty. 2011; Feb 11. [Epub ahead of print].

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Researchers for this study found a mean Harris Hip Score of 94 points and stable fixation of all components among active patients who underwent total hip arthroplasty with a straight, tapered, titanium stem and alumina bearing, and had a minimum 5-year follow-up.

Bo-Hyun Hwang, MD, and colleagues retrospectively reviewed 78 cementless, primary total hip arthroplasties performed using a proximally porous-coated, tapered stem and alumina bearing couple. At a minimum follow-up of 5 years, the researchers found that 14% of the cases showed mild stress shielding of the proximal femur. Thigh pain was reported in two hips, sounds emitted from two hips and a ceramic head fracture occurred in one hip.

“The results of total hip arthroplasty with a straight, tapered, proximally porous-coated stem and alumina-on-alumina bearing were encouraging for active patients,” the authors wrote.