title: Retrospective analysis of total knee arthroplasty cases for visual, histological, and clinical eligibility of unicompartmental knee arthroplasties.
abstract: We retrospectively analyzed 97 total knee arthroplasty cases with medial osteoarthritis from seven participating surgeons in our teaching hospital to determine the percentage of patients who met the following eligibility criteria for unicompartmental knee arthroplasty (UKA): healthy cartilage in the lateral compartment based on (1) visual analysis, (2) histological analysis and (3) absence of UKA contraindications based on clinical analysis. The cases with healthy lateral cartilage, intact anterior cruciate ligament and posterior cruciate ligament, lack of patello-femoral arthritis, preoperative range of motion (ROM) greater than 90, and genu varum less than 10° represented 21% of the 97 cases studied. This percentage would likely have been higher had the cases been assessed earlier in the disease process. It was concluded that there is the potential to utilize UKA more frequently in the future.
authors.affiliation: Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases Laboratory for Minimally Invasive Surgery Veterans Affairs Medical Center, New York, New York 10010, USA.
authors.forename: Sally
authors.initials: S
authors.lastname: Arno
authors.forename: Diana
authors.initials: D
authors.lastname: Maffei
authors.forename: Peter S
authors.initials: PS
authors.lastname: Walker
authors.forename: Ran
authors.initials: R
authors.lastname: Schwarzkopf
authors.forename: Panna
authors.initials: P
authors.lastname: Desai
authors.forename: German C
authors.initials: GC
authors.lastname: Steiner
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016118:Anterior Cruciate Ligament / Q000473:pathology / Q000601:surgery; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation* / Q000379:methods*; D004608:Eligibility Determination; D005260:Female; D005269:Femur / Q000473:pathology / Q000601:surgery; D006801:Humans; D007719:Knee Joint / Q000473:pathology* / Q000502:physiology / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000473:pathology / Q000601:surgery*; D016119:Posterior Cruciate Ligament / Q000473:pathology / Q000601:surgery; D011474:Prosthesis Design; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D016896:Treatment Outcome