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- W2354920300 abstract "Introduction While implant designs and surgical techniques have improved in total knee arthroplasty (TKA), approximately 20% of patients remain dissatisfied. The purpose of this study was to determine if reproduction of anatomic preoperative measurements correlated to improved clinical outcomes in TKA. Methods We retrospectively reviewed95 patients (106 knees) who underwent a TKA between 2012 −2013 with a minimum of one year follow-up. All patients had a pre and post-operative SF-12 and WOMAC scores. Pre and 6 week post-operative radiographs were reviewed to compare restoration of coronal plane alignment, maintenance of joint line obliquity, and maintenance of tibial varus. Coronal alignment was defined as the angle formed between the mechanical axis of the femur and the the tibia. Joint line obliquity was defined as the angle between the mechanical axis of the limb and the line which best parallels the joint space at the knee. Tibial varus was compared between the preoperative proximal lateral tibial angle and the angle formed by the mechanical axis of the tibia and tibial component postoperatively. Results In 106 patients, postoperative coronal alignment, maintenance of tibia varus, or restoration of joint line obliquity did not correlate to improved outcomes. Patients with residual varus coronal alignment of more than 2° had increased pain and total WOMAC scores (p=0.013 and p = 0.036). Patients who had under-correction of the native tibial angle, had an increase in overall WOMAC score (p=0.007) with increased pain (p=0.012), stiffness (p=0.038), and function (p = 0.001). Furthermore, over-correction of tibial angle resulted in increased WOMAC functional scores (p=0.019), but was not significant to the overall WOMAC. Conclusions In this study, restoration of a patient9s native tibial varus correlated to improved WOMAC scores at 1 year postoperatively. Undercorrection of varus resulted in worse total WOMAC scores whereas overcorrection resulted in worse WOMAC functional scores." @default.
- W2354920300 created "2016-06-24" @default.
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- W2354920300 date "2016-05-01" @default.
- W2354920300 modified "2023-09-23" @default.
- W2354920300 title "DOES RESTORATION OF JOINT LINE OBLIQUITY, TIBIAL VARUS, AND CORONAL ALIGNMENT IMPROVE EARLY CLINICAL OUTCOMES IN TKA?" @default.
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