title: Patterns in the knee flexion-extension moment profile during stair ascent and descent in patients with total knee arthroplasty.
abstract: The aim of this study was to investigate the prevalence of abnormal knee biomechanical patterns in 40 patients with a modern TKA prosthesis, compared to 40 matched control participants when ascending and descending stairs. Fewer patients were able to ascend (65%) or descend stairs (53%) unassisted than controls (83%). Of the participants who could ascend and descend, cluster analysis classified most patients (up to 77%) as demonstrating a similar knee moment pattern as all controls. A small subgroup of patients who completed the tasks did so with distinctly abnormal biomechanics compared to other patients and controls. These findings suggest that recovery of normal stair climbing is possible. However, rehabilitation might be more effective if it were tailored to account for these differences between patients.
authors.affiliation: School of Allied Health, Faculty of Health Sciences, La Trobe University, Melbourne, Australia. Electronic address: j.mcclelland@latrobe.edu.au.
authors.forename: Jodie A
authors.initials: JA
authors.lastname: McClelland
authors.affiliation: OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia. Electronic address: jfeller@osv.com.au.
authors.forename: Julian A
authors.initials: JA
authors.lastname: Feller
authors.affiliation: School of Allied Health, Faculty of Health Sciences, La Trobe University, Melbourne, Australia. Electronic address: h.menz@latrobe.edu.au.
authors.forename: Hylton B
authors.initials: HB
authors.lastname: Menz
authors.affiliation: School of Allied Health, Faculty of Health Sciences, La Trobe University, Melbourne, Australia. Electronic address: k.webster@latrobe.edu.au.
authors.forename: Kate E
authors.initials: KE
authors.lastname: Webster
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001696:Biomechanical Phenomena; D005260:Female; D005684:Gait; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009068:Movement
keywords: Flexion; Gait analysis; Knee arthroplasty; Motion analysis; Stairs