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- Title
Soft tissue tension in extension in total knee arthroplasty affects postoperative knee extension and stability.
- Authors
Asano, Hiroshi; Muneta, Takeshi; Sekiya, Ichiro
- Abstract
The purpose of this study was to assess correlation of soft tissue tension in extension with postoperative extension deficit and valgus/varus instability. Sixty-four osteoarthritic knees that underwent primary total knee arthroplasty were investigated. Soft tissue tension in extension was measured during operation with a balancer/tensor device. Extension deficit was measured, and valgus/varus laxity was assessed by stress radiographs in extension and 30°-flexion 1 year after operation. The extension deficit became larger with an increase of soft tissue tension a year after operation. ( P < 0.05) The varus laxity in extension and 30°-flexion and valgus laxity in 30°-flexion became smaller with an increase of soft tissue tension ( P < 0.05). Our results demonstrated that soft tissue tension during operation affects postoperative knee extension and stability.
- Subjects
TOTAL knee replacement; PLASTIC surgery; JOINT surgery; OPERATIVE surgery; RANGE of motion of joints; TISSUE mechanics
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2008, Vol 16, Issue 11, p999
- ISSN
0942-2056
- Publication type
Article
- DOI
10.1007/s00167-008-0591-1