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J Arthroplasty. 2011 Dec;26(8):1291-8. doi: 10.1016/j.arth.2011.01.003. Epub 2011 Feb 25.

The influence of preoperative deformity on intraoperative soft tissue balance in posterior-stabilized total knee arthroplasty.

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1
Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan. mastun@m4.dion.ne.jp

Abstract

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 posterior-stabilized TKA at 0°, 10°, 45°, 90°, and 135° of flexion in 60 varus-type osteoarthritic patients. Despite more than 20° of preoperative varus deformity influencing intraoperative ligament balance in varus, joint gap showed no significant difference regardless of the amount of preoperative varus deformity. Accordingly, even in pre-operative severe varus deformed knees, gap balancing can be adjusted during PS TKA.

PMID:
21353452
DOI:
10.1016/j.arth.2011.01.003
[Indexed for MEDLINE]
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