title: Functional comparison of total knee arthroplasty performed with and without a navigation system.
abstract: This study was undertaken to compare the clinical and radiological outcomes achieved using total knee arthroplasty (TKA) with and without a navigation system. This study included 43 TKAs performed with a navigation system and 42 TKAs without a navigation system with a minimum two-year follow-up. We compared clinical outcomes including range of motion, Hospital for Special Surgery (HSS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores at the final follow-up. For radiological comparisons, we evaluated radiological alignment on standing radiographs of knees. HSS and WOMAC scores showed significant improvements at final follow-ups in both groups, but showed no significant inter-group differences (p > 0.05). Similarly, no significant differences were observed in range of motion (p = 0.962). TKAs performed with navigation showed significantly better outcomes in terms of mechanical angle and prosthetic alignment outliers than TKAs performed without navigation. However, we could not find any differences in functional outcomes between TKAs performed with or without a navigation system.
authors.affiliation: Center for Joint Disease, Chonnam National University Hwasun Hospital, 160 Ilsimri Hwasuneup, Hwasungun, Cheollamando, 501-757, Republic of Korea.
authors.forename: Jong Keun
authors.initials: JK
authors.lastname: Seon
authors.forename: Sang Jin
authors.initials: SJ
authors.lastname: Park
authors.forename: Keun Bae
authors.initials: KB
authors.lastname: Lee
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Michal
authors.initials: M
authors.lastname: Kozanek
authors.forename: Eun Kyoo
authors.initials: EK
authors.lastname: Song
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001696:Biomechanical Phenomena; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000502:physiology / Q000601:surgery; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D016059:Range of Motion, Articular / Q000502:physiology; D012720:Severity of Illness Index; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome