title: The role of flexion contracture on outcomes in primary total knee arthroplasty.
abstract: This study examined the role that flexion contracture plays in postoperative outcomes after total knee arthroplasty using a retrospective database review. The relationships between preoperative and postoperative knee extension, walking ability, stair climbing ability, Knee Society scores, pain scores, and knee function scores were studied in 5,622 knees. A preoperative flexion contracture was associated with an increased incidence of a persistent postoperative flexion deformity. A postoperative flexion contracture was associated with poorer postoperative results. Furthermore, a postoperative hyperextension deformity of greater than 10 degrees was associated with an increased risk of suboptimal pain and Knee Society scores. Knee extension deformities play a substantial detrimental role in the functional outcome of primary total knee arthroplasty.
authors: The Center for Hip and Knee Surgery, St. Francis Hospital, Mooresville, Mooresville, Indiana 46158, USA.
authors: Merrill A
authors: MA
authors: Ritter
authors: Joseph D
authors: JD
authors: Lutgring
authors: Kenneth E
authors: KE
authors: Davis
authors: Michael E
authors: ME
authors: Berend
authors: Jeffery L
authors: JL
authors: Pierson
authors: R Michael
authors: RM
authors: Meneghini
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D003286:Contracture / Q000150:complications* / Q000503:physiopathology; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D016059:Range of Motion, Articular; D012189:Retrospective Studies; D016896:Treatment Outcome