High flexion vs. conventional prostheses in TKA: similar migration and clinical outcomes .
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Fixation of High-Flexion Total Knee Prostheses: Five-Year Follow-up Results of a Four-Arm Randomized Controlled Clinical and Roentgen Stereophotogrammetric Analysis Study
J Bone Joint Surg Am. 2013 Oct 2;95(19):e1411-1174 patients, scheduled to undergo primary total knee arthroplasty, were randomly assigned into 1 of 4 prosthetic groups: high-flexion mobile bearing, high-flexion fixed bearing, conventional fixed bearing, and conventional mobile bearing. The purpose was to compare the migration and clinical outcomes of high-flexion total knee arthroplasty with fixed or mobile bearings versus the conventional counterparts. Results of the study demonstrated that high-flexion knee prostheses with a mobile or fixed bearing led to comparable tibial and femoral component migration (2 to 5 years postoperatively) when compared to their conventional counterparts.
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