Improved femoral component rotation in advanced genu valgum deformity using computer-assisted measured resection total knee arthroplasty

Journal of Orthopaedic Surgery and Research
Shih-Jie LinWun-Jer Shen

Abstract

Accurate femoral rotational alignment is of vital importance for successful total knee arthroplasty (TKA). The value of computer-assisted surgery TKA (CAS-TKA) in increasing the accuracy of femoral rotational alignment remains controversial. We hypothesize that outcomes are related to the severity of preoperative varus and valgus deformity and that CAS-TKA may be beneficial under certain circumstances. Between January 2007 and December 2013, patients with osteoarthritis and varus angulation in the mechanical axis (MA) ≥ 15° and valgus angulation in the MA ≥ 10° (based on hip-to-ankle standing radiography) who underwent TKA were divided into four groups. CAS-TKA and conventional TKA outcomes were compared in patients who had preoperative advanced genu varum and advanced genu valgum deformities. The accuracy of component alignment and postoperative limb alignment was determined using radiographic parameters and computed tomography (CT). One hundred and eight patients (144 knees) were included in the analysis. For patients with preoperative advanced genu varum deformity, a significant difference was detected in the sagittal femoral angle (p < 0.001), but no significant improvement of femoral rotational alignment was noted (p = 0.1...Continue Reading

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Citations

Nov 12, 2016·The Journal of International Medical Research·Daniel Hernández-VaqueroJose Manuel Fernandez-Carreira
Oct 5, 2018·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Hideki UeyamaHiroaki Nakamura
Nov 12, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Michel BercovyFrederic Sailhan

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