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- W1010226343 abstract "The preservation of joint anatomy is one of the key issues in total knee arthroplasty. The effect of the prosthesis’ referencing system, relative to femoral anatomy, remains unknown. It was sought to determine if femoral anatomy, following total knee arthroplasty is better maintained using either anterior referencing or posterior referencing prosthesis. The posterior condylar offset ratio (PCOR) was employed for preoperative and postoperative radiographic comparison of femoral condyles. It was hypothesized that posterior referencing prosthesis would better restore condylar morphology. Sixty-six patients undergoing a total knee arthroplasty with anterior referenced Zimmer® NexGen® LPS prosthesis and ninety-one with posterior referenced Tornier® HLS Noetos® were divided into two groups according to the prosthetic model used and retrospectively compared. PCOR was calculated as the quotient of the distance between the posterior condylar border and the tangent to the posterior cortex of the femoral diaphysis, and the distance between the posterior condylar border and the tangent to the anterior cortex of the femoral diaphysis. PCOR was determined preoperatively and postoperatively and compared within each group and between both groups. An increase in the PCOR (P < 0.0001) following surgery was observed in both anterior referencing and posterior referencing models. No difference was noted when the postoperative PCOR was compared between both groups (P = 0.61). Both anterior and posterior referencing prosthesis lead to a similar increase of the PCOR following total knee arthroplasty. Level IV." @default.
- W1010226343 created "2016-06-24" @default.
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- W1010226343 date "2015-10-01" @default.
- W1010226343 modified "2023-10-17" @default.
- W1010226343 title "The posterior condylar offset ratio and femoral anatomy in anterior versus posterior referencing total knee arthroplasty" @default.
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- W1010226343 doi "https://doi.org/10.1016/j.otsr.2015.05.003" @default.
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