title: Total knee arthroplasty with asymmetric femoral condyles and tibial tray.
abstract: Total knee arthroplasties with an asymmetric tibial tray and posterior femoral condyles were implanted in 224 knees. Follow-up averaged 6.3 years. All components were cemented, all patellae were resurfaced, and all femoral components were cruciate-substituting. Postoperative alignment averaged 3.3 degrees valgus. Radiolucencies were absent around 116 knees (66%). No components were radiographically loose. Knee Society scores averaged 85 postoperatively and modified Western Ontario and McMaster Universities Index scores averaged 82. Postoperative flexion averaged 114 degrees. Ten knees required manipulation for arthrofibrosis. Lateral release was necessary in 62 knees (28%). No revisions were required for aseptic loosening. Survivorship free of additional surgical procedures was 97% at 5 years. Compared with other series by designing surgeons, similar excellent survivorship was seen but with a higher lateral release rate.
authors.affiliation: Department of Orthopaedic Surgery, University of Tennessee, Campbell Clinic, Memphis, Tennessee, USA.
authors.forename: John R
authors.initials: JR
authors.lastname: Crockarell
authors.forename: John M
authors.initials: JM
authors.lastname: Hicks
authors.forename: R Jason
authors.initials: RJ
authors.lastname: Schroeder
authors.forename: James L
authors.initials: JL
authors.lastname: Guyton
authors.forename: James W
authors.initials: JW
authors.lastname: Harkess
authors.forename: David G
authors.initials: DG
authors.lastname: Lavelle
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011474:Prosthesis Design; D011859:Radiography; D016019:Survival Analysis