ARTHROPLASTY
Posterior cruciate-substituting vs. retaining TKR in patients with high varus deformity
This report has been verified
by one or more authors of the
original publication.
Arch Orthop Trauma Surg. 2016 Jul;136(7):999-1006.
56 patients with knee osteoarthritis and varus deformity (>10 degrees) were randomized to undergo total knee replacement with either a posterior cruciate-substituting (PS) or cruciate-retaining (CR) prosthesis. The purpose of this study was to the determine the effect of these different devices on postoperative range of motion and knee function when compared over a 7-year follow-up period in patients with a varus deformity. Results demonstrated that patients in the PS group had significantly greater active/passive flexion angles, KSS knee scores at 3 and 12 months, and KSS function scores at 3 months when compared to the CR group. However, patients in the CR group demonstrated significantly shorter time required to perform straight-leg-raising exercises when compared to the PS group.
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