Soft tissue tension in cruciate-retaining and posterior-stabilized total knee arthroplasty.
Using a tensor for total knee arthroplasty (TKA) designed to facilitate soft tissue balance measurements with a reduced patellofemoral joint, we intraoperatively compared the soft tissue tension of cruciate-retaining (CR) and posterior-stabilized (PS) TKAs performed at 0°, 10°, 45°, 90°, and 135° of flexion, with the patella both everted and reduced in 40 osteoarthritic patients. Although balance of soft tissue tension with a reduced patella of PS TKA slightly increased in varus from extension to flexion, these values slightly decreased for CR TKA from extension to flexion. Accordingly, we conclude that soft tissue tension patterns differ between everted and reduced patellae, as well as between PS and CR TKA.
Matsumoto
Tomoyuki
T
Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
Muratsu
Hirotsugu
H
Kubo
Seiji
S
Matsushita
Takehiko
T
Kurosaka
Masahiro
M
Kuroda
Ryosuke
R
D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology / Q000601:surgery*; D007720:Knee Prosthesis; D020370:Osteoarthritis, Knee / Q000601:surgery*; D017847:Patellar Ligament / Q000502:physiology; D057071:Patellofemoral Joint / Q000502:physiology / Q000601:surgery; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D011446:Prospective Studies; D016059:Range of Motion, Articular / Q000502:physiology; D016896:Treatment Outcome