Paper # 223: The Influence of Pre‐operative Deformity on Intra‐operative Soft Tissue Balance in Posterior‐Stabilized Total Knee Arthroplasty

PurposeTotal knee arthroplasty (TKA) has succeeded in developing to relieve pain and improve function. In general, joint line elevation has been reported to be avoided for the functional restoration in TKA. Whereas severe pre-operative varus deformity needs substantial soft tissue release on the medial side during TKA, what extent to be released along the medial structures is still controversial. Using an offset type tensor for TKA that is designed to facilitate soft tissue balance measurements throughout the range of motion with a reduced patello-femoral (PF) joint and femoral component in place [1Matsumoto T. Muratsu H. Tsumura N. Mizuno K. Kuroda R. Yoshiya S. Kurosaka M. Joint gap kinematics in posterior-stabilized total knee arthroplasty measured by a new tensor with the navigation system.J Biomech Eng. 2006; 128: 867Crossref PubMed Scopus (104) Google Scholar, 2Muratsu H, Matsumoto T, Maruo A, Miya H, Kurosaka M, Kuroda R. Femoral component placement chnges soft tissue balance in posterior-stabilized total knee arthroplasty. Clin Biomech [Epub ahead of print].Google Scholar], we examined the influence of pre-operative deformity on intra-operative soft tissue balance during posterior-stabilized (PS) TKA.