title: Does greater knee flexion increase patient function and satisfaction after total knee arthroplasty?
abstract: The purpose of this study was to determine whether high flexion leads to improved benefits in patient satisfaction, perception, and function after total knee arthroplasty (TKA). Data were collected on 122 primary TKAs. Patients completed a Total Knee Function Questionnaire. Knees were classified as low (≤ 110°), mid (111°-130°), or high flexion (>130°). Correlation between knee flexion and satisfaction was not statistically significant. Increased knee flexion had a significant positive association with achievement of expectations, restoration of a "normal" knee, and functional improvement. In conclusion, although the degree of postoperative knee flexion did not affect patient satisfaction, it did influence fulfillment of expectations, functional ability, and knee perception. This suggests that increased knee flexion, particularly more than 130°, may lead to improved outcomes after TKA.
authors.affiliation: Baylor College of Medicine, Houston, Texas 77030, USA.
authors.forename: Brandon N
authors.initials: BN
authors.lastname: Devers
authors.forename: Michael A
authors.initials: MA
authors.lastname: Conditt
authors.forename: Miranda L
authors.initials: ML
authors.lastname: Jamieson
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Driscoll
authors.forename: Philip C
authors.initials: PC
authors.lastname: Noble
authors.forename: Brian S
authors.initials: BS
authors.lastname: Parsley
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D017060:Patient Satisfaction; D016059:Range of Motion, Articular; D012189:Retrospective Studies; D011795:Surveys and Questionnaires