title: Correlation between preoperative and postoperative knee kinematics in total knee arthroplasty using cruciate retaining designs.
abstract: The authors evaluated the relationships between preoperative and postoperative kinematics in 50 osteoarthritic knees scheduled for cruciate retaining total knee arthroplasty with regards to posterior femoral roll back and external femoral rotation using a navigation system from 10° to 120° of knee flexion. Although posterior femoral roll back was maintained, external femoral rotation was significantly decreased compared to those of the preoperative knee after total knee arthroplasty. However, the amount of posterior roll back and external femoral rotation after total knee arthroplasty were found to be significantly positively related to those measured preoperatively (r = 0.62 and 0.57, respectively). These significant kinematic correlations may explain why preoperative range of knee motion influences range of motion after total knee arthroplasty.
authors.affiliation: Center for Joint Disease, Chonnam National University Hwasun Hospital, Jeonnam, Korea.
authors.forename: Jong Keun
authors.initials: JK
authors.lastname: Seon
authors.forename: Ju Kwon
authors.initials: JK
authors.lastname: Park
authors.forename: Mun Su
authors.initials: MS
authors.lastname: Jeong
authors.forename: Woo Bin
authors.initials: WB
authors.lastname: Jung
authors.forename: Kyung Soon
authors.initials: KS
authors.lastname: Park
authors.forename: Taek Rim
authors.initials: TR
authors.lastname: Yoon
authors.forename: Eun Kyoo
authors.initials: EK
authors.lastname: Song
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods* / Q000534:rehabilitation; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D020370:Osteoarthritis, Knee / Q000503:physiopathology / Q000601:surgery; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D011183:Postoperative Complications; D057234:Preoperative Period; D011474:Prosthesis Design; D016059:Range of Motion, Articular; D016896:Treatment Outcome