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  • Title: The knee adduction moment during gait is associated with the adduction angle measured during computer-assisted total knee arthroplasty.
    Author: Roda RD, Wilson JL, Wilson DA, Richardson G, Dunbar MJ.
    Journal: J Arthroplasty; 2012 Jun; 27(6):1244-50. PubMed ID: 22480524.
    Abstract:
    Computer-assisted surgery can be used to measure 3-dimensional knee function during arthroplasty surgery; however, it is unknown if the movement of the knee measured during surgery is related to the in vitro, dynamic state of the knee joint, specifically the knee adduction moment during gait, which has been related to implant migration. The purpose of this study was to determine if the preoperative adduction moment is correlated with the knee abduction/adduction angle measured intraoperatively. A statistically significant correlation was found between the mean (r(2) = 0.59; P = .001) and peak (r(2) = 0.53; P = .003) preoperative knee adduction moment and the mean abduction/adduction angle measured intraoperatively. The association found in this study suggests the potential for incorporating functional information that relates to surgical outcome into surgical decision making using computer-assisted surgery.
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