title: Changes in anteroposterior stability following total knee arthroplasty.
abstract: This study evaluated the changes in anteroposterior stability at flexion and extension following posterior cruciate ligament (PCL)-retaining and PCL-substituting total knee arthroplasty (TKA), in comparison with normal knees. Altogether, 29 knees of 24 patients underwent either PCL-retaining ( n = 19) or PCL-substituting ( n = 10) TKA. Anteroposterior displacement was measured with a KT-2000 arthrometer preoperatively, 1 month after surgery, and again an average of 3 years after surgery. Anteroposterior stability at flexion and extension did not change following PCL-retaining TKA and was not significantly different from that of normal subjects, whereas anteroposterior stability increased following PCL-substituting TKA and was significantly greater than that of normal subjects an average of 3 years after surgery.
authors.affiliation: Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku,Fukuoka 812-8582, Japan.
authors.forename: Ryotaro
authors.initials: R
authors.lastname: Nabeyama
authors.forename: Shuichi
authors.initials: S
authors.lastname: Matsuda
authors.forename: Hiromasa
authors.initials: H
authors.lastname: Miura
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Kawano
authors.forename: Ryuji
authors.initials: R
authors.lastname: Nagamine
authors.forename: Taro
authors.initials: T
authors.lastname: Mawatari
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Tanaka
authors.forename: Yukihide
authors.initials: Y
authors.lastname: Iwamoto
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D005500:Follow-Up Studies; D006801:Humans; D007593:Joint Instability / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery*; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D016119:Posterior Cruciate Ligament / Q000503:physiopathology / Q000601:surgery*; D016059:Range of Motion, Articular / Q000502:physiology; D013997:Time Factors; D016896:Treatment Outcome