title: In vivo knee kinematics in patients with bilateral total knee arthroplasty of 2 designs.
abstract: Many younger and highly active patients desire to achieve high flexion after total knee arthroplasty. This study's purpose was to determine if a contemporary total knee arthroplasty design improved functional knee flexion compared with a traditional total knee arthroplasty in patients living a Western lifestyle. Ten patients with bilateral total knee arthroplasty of 2 types were studied during weight-bearing lunge, kneeling, and stair activities using fluoroscopic imaging. There were no differences in maximum knee flexion during lunging or kneeling. Statistically significant differences in tibial rotation and condylar translation were observed during the 3 activities. Although several joint kinematic differences were observed, no important functional differences were observed in clinically excellent, high performing subjects with bilateral total knee arthroplasty of 2 types.
authors.affiliation: Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611-6250, USA.
authors.forename: Nobukazu
authors.initials: N
authors.lastname: Okamoto
authors.forename: Leigh
authors.initials: L
authors.lastname: Breslauer
authors.forename: Anthony K
authors.initials: AK
authors.lastname: Hedley
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Mizuta
authors.forename: Scott A
authors.initials: SA
authors.lastname: Banks
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation* / Q000379:methods; D001696:Biomechanical Phenomena / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000502:physiology* / Q000601:surgery*; D007720:Knee Prosthesis; D008019:Life Style; D008297:Male; D020370:Osteoarthritis, Knee / Q000601:surgery; D011187:Posture / Q000502:physiology; D011474:Prosthesis Design; D016059:Range of Motion, Articular / Q000502:physiology; D016896:Treatment Outcome; D016474:Weight-Bearing / Q000502:physiology