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Reinforcement of bone cement around the femoral prosthesis tip by pre-coated wire coil: a human cadaver bone study
1Department of Biomedical Engineering, College of Engineering, University of Iowa, Iowa City 52246, USA.
Bio-Medical Materials and Engineering
|January 1, 1996
Abstract:
In order to alleviate fixation-related problems of cemented total hip arthroplasty (THA), a wire coil was incorporated within the cement mantle at the distal end of femoral prosthesis in a sectioned human cadaver specimen. Mechanical push-out test results showed that the wire reinforcement reduces the hoop strain by 50% at the exterior surface of the bone. The reinforced specimen also showed less axial stem displacement. The use of wire coil within the cement mantle could reduce hoop strain and axial stem displacement in the femoral prosthesis of total hip joint implants.