title: Tibia valga morphology in osteoarthritic knees: importance of preoperative full limb radiographs in total knee arthroplasty.
abstract: Osteoarthritis of the knee is associated with deformities of the lower limb. Tibia valga is a contributing factor to lower limb alignment in valgus knees. We evaluated 97 valgus knees and 100 varus knees. Long-leg films were taken in weight bearing with both knees in full extension. For valgus knees, 52 knees (53%) had a tibia valga deformity. Average tibia valgus deformation was 5.0°. For varus knees, there was only 1 case of tibia valga (1%), with a deformation of 2.5°. The aim of this study was to assess the prevalence of primary tibia valga in valgus and varus knees and understand how it affects our approach to total knee arthroplasty (TKA). We recommend having full-leg length films when planning for TKA in valgus knees.
authors.affiliation: King Fahad Medical City, Riyadh, KSA.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Alghamdi
authors.affiliation: Hôpital de Hautepierre, Strasbourg, France.
authors.forename: Michel
authors.initials: M
authors.lastname: Rahmé
authors.affiliation: Hôpital Maisonneuve-Rosemont, Montréal, Québec, Canada.
authors.forename: Martin
authors.initials: M
authors.lastname: Lavigne
authors.affiliation: Hôpital Maisonneuve-Rosemont, Montréal, Québec, Canada.
authors.forename: Vincent
authors.initials: V
authors.lastname: Massé
authors.affiliation: Hôpital Maisonneuve-Rosemont, Montréal, Québec, Canada.
authors.forename: Pascal-André
authors.initials: PA
authors.lastname: Vendittoli
mesh_terms: D000293:Adolescent; D053587:Arthrometry, Articular; D019645:Arthroplasty, Replacement, Knee; D001848:Bone Diseases, Developmental / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000601:surgery; D002648:Child; D016208:Databases, Factual; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery; D056304:Genu Valgum / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000601:surgery; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery; D007720:Knee Prosthesis; D008297:Male; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000601:surgery*; D055034:Osteochondrosis / Q000151:congenital* / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery; D011300:Preoperative Care; D015995:Prevalence; D011859:Radiography; D012189:Retrospective Studies; D012307:Risk Factors; D013977:Tibia / Q000000981:diagnostic imaging* / Q000601:surgery; D016474:Weight-Bearing
keywords: genu valgum; knee morphology; tibia valga; total knee arthroplasty