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Bone & Joint Research
Vol. 7, Issue 7 | Pages 485 - 493
1 Jul 2018
Numata Y Kaneuji A Kerboull L Takahashi E Ichiseki T Fukui K Tsujioka J Kawahara N

Objective

Cement thickness of at least 2 mm is generally associated with more favorable results for the femoral component in cemented hip arthroplasty. However, French-designed stems have shown favorable outcomes even with thin cement mantle. The biomechanical behaviors of a French stem, Charnley-Marcel-Kerboull (CMK) and cement were researched in this study.

Methods

Six polished CMK stems were implanted into a composite femur, and one million times dynamic loading tests were performed. Stem subsidence and the compressive force at the bone-cement interface were measured. Tantalum ball (ball) migration in the cement was analyzed by micro CT