title: Coronal alignment correlates with outcome after total knee arthroplasty: five-year follow-up of a randomized controlled trial.
abstract: In a prospective randomized control trial comparing computer-assisted vs conventional total knee arthroplasty, we previously reported that patients with coronal alignment within 3° of neutral had superior international knee society and Short-Form 12 (SF-12) physical scores at 6 weeks, 3 months, 6 months, and 12 months after surgery. Computer-assisted total knee arthroplasty achieved greater accuracy in implant alignment, and this correlated with better knee function and quality of life. At 5 years, 90 of 111 patients assessed in our original study were reviewed. Coronal alignment within 3° of neutral continued to be correlated with superior International Knee Society and SF-12 scores. Coronal alignment greater than 3° was associated with a significant decline in SF-12 mental health scores.
authors.affiliation: Department of Surgery, University of Melbourne, St Vincent's Hospital Melbourne, Victoria, Australia.
authors.forename: Nathaniel F R
authors.initials: NF
authors.lastname: Huang
authors.forename: Michelle M
authors.initials: MM
authors.lastname: Dowsey
authors.forename: Eric
authors.initials: E
authors.lastname: Ee
authors.forename: James D
authors.initials: JD
authors.lastname: Stoney
authors.forename: Sina
authors.initials: S
authors.lastname: Babazadeh
authors.forename: Peter F
authors.initials: PF
authors.lastname: Choong
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D016009:Chi-Square Distribution; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010147:Pain Measurement; D011446:Prospective Studies; D011788:Quality of Life; D020127:Recovery of Function; D012086:Reoperation / Q000706:statistics & numerical data; D018709:Statistics, Nonparametric; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome