title: Improved clinical outcomes after high-flexion total knee arthroplasty: a 5-year follow-up study.
abstract: The purpose of this study was to determine if high-flexion total knee arthroplasty resulted in improved outcomes compared with conventional total knee arthroplasty. This was a prospective, double-blind, randomized controlled trial involving 76 patients over 5 years. We compared the postoperative flexion range, Knee Society scores, Oxford knee scores, and SF-36 scores between 2 groups. The high-flexion group was able to achieve a significant sustainable increase in postoperative knee flexion angle; and this correlated to a significant improvement in the General Health, Vitality, and Physical Functioning scales of SF-36 at 5 years postoperatively. Our results signify that high-flexion total knee arthroplasty has additional benefits to the quality of life in patients who require higher degrees of knee flexion in their activities of daily living.
authors.affiliation: Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore.
authors.forename: Chusheng
authors.initials: C
authors.lastname: Seng
authors.forename: Seng Jin
authors.initials: SJ
authors.lastname: Yeo
authors.forename: James L
authors.initials: JL
authors.lastname: Wee
authors.forename: S
authors.initials: S
authors.lastname: Subanesh
authors.forename: Hwee Chi
authors.initials: HC
authors.lastname: Chong
authors.forename: Ngai Nung
authors.initials: NN
authors.lastname: Lo
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001696:Biomechanical Phenomena; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D007720:Knee Prosthesis; D008297:Male; D011788:Quality of Life; D016059:Range of Motion, Articular; D016896:Treatment Outcome