The Influence of Preoperative Deformity on Intraoperative Soft Tissue Balance in Posterior-Stabilized Total Knee Arthroplasty

作者：Matsumoto Tomoyuki^*; Muratsu Hirotsugu; Kubo Seiji; Matsushita Takehiko; Kurosaka Masahiro; Kuroda Ryosuke

来源：Journal of Arthroplasty, 2011, 26(8): 1291-1298.

DOI：10.1016/j.arth.2011.01.003

• total knee arthroplasty
• preoperative deformity
• soft tissue balance
• kinematics
• patellofemoral joint
• posterior stabilized

Using a tensor for total knee arthroplasty (TKA) enabling soft tissue balance measurements with a reduced patellofemoral joint and femoral component in place, we examined the influence of preoperative deformity on intraoperative soft tissue balance during posteriorstabilized TKA at 0 degrees, 10 degrees, 45 degrees, 90 degrees, and 135 degrees of flexion in 60 varus-type osteoarthritic patients. Despite more than 20 degrees of preoperative varus deformity influencing intraoperative ligament balance in varus, joint gap showed no significant difference regardless of the amount of preoperative yams deformity. Accordingly, even in pre-operative severe varus deformed knees, gap balancing can be adjusted during PS TKA.

• 出版日期2011-12