Differences in outcomes between standard and high-flexion knee prosthesis in TKR .
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Comparison between standard and high-flexion posterior-stabilized rotating-platform mobile-bearing total knee arthroplasties: a randomized controlled study
J Bone Joint Surg Am. 2010 Nov 17;92(16):2634-42.127 consecutive patients with 170 primary osteoarthritic knees, scheduled to undergo the total knee arthroplasty procedure, were randomized to the two variants of implant components: one with a high-flexion posterior-stabilized rotating platform mobile bearing prosthesis and another with a standard PFC implant device. Following the same surgical technique and rehabilitation protocol, the aim was to determine if the specially-designed implant met the high demands of flexibility for sitting and squatting for the treatment group. In the two year observation period, no significant differences in the range of motion, or knee function scores,and patient satisfaction were observed between the control and the intervention group.
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