title: A functional analysis of massive knee replacement after extra-articular resections of primary bone tumors.
abstract: We performed a functional analysis of massive knee replacements after extra-articular resection of primary bone tumors. Patients did not score as highly on the Musculoskeletal Tumour Society Score and Knee Society Score (P < or = .01) as patients who had undergone intra-articular resection. Lower scores were achieved for emotional acceptance (P < or = .01), functional restriction (P < or = .05), walking distance (P < or = .05), and managing stairs (P < or = .05). These patients had a significantly greater extension lag (P < or = .01) and greater fixed flexion (P < or = .05). This functional deficit is primarily due to a compromised extensor mechanism inherent in the type of surgical resection necessary to achieve adequate removal of the tumor.
authors.affiliation: London Bone and Soft Tissue Tumour Unit, Royal National Orthopaedic Hospital, United Kingdom.
authors.forename: S J
authors.initials: SJ
authors.lastname: Kendall
authors.forename: G C
authors.initials: GC
authors.lastname: Singer
authors.forename: T W
authors.initials: TW
authors.lastname: Briggs
authors.forename: S R
authors.initials: SR
authors.lastname: Cannon
mesh_terms: D000293:Adolescent; D000328:Adult; D019645:Arthroplasty, Replacement, Knee; D001859:Bone Neoplasms / Q000534:rehabilitation / Q000601:surgery*; D005260:Female; D005266:Femoral Neoplasms / Q000534:rehabilitation / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013977:Tibia / Q000601:surgery; D016896:Treatment Outcome