title: Agreements between different methods of gap balance estimation in cruciate-retaining total knee arthroplasty.
abstract: The authors investigated the agreements between three different methods of estimating gap balance in cruciate-retaining (CR) total knee arthroplasty (TKA) with the use of a subvastus approach. One hundred consecutive CR TKAs were prospectively included in this study. After completing soft tissue release and bone cutting for CR TKA, flexion-extension gap balance was assessed using a distractor, spacer blocks, and trial components. Levels of agreement between the estimation techniques used were substantial. All three techniques were reliable in the assessment of gap balance. But, observations made during this study suggest that if more than one estimation technique is applied during CR TKA, the incidence of undetected gap imbalance can be reduced.
authors.affiliation: Department of Orthopaedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea. iy1000@catholic.ac.kr
authors.forename: Yong
authors.initials: Y
authors.lastname: In
authors.forename: Seok-Jung
authors.initials: SJ
authors.lastname: Kim
authors.forename: Jung-Man
authors.initials: JM
authors.lastname: Kim
authors.forename: Young-Kyun
authors.initials: YK
authors.lastname: Woo
authors.forename: Nam-Yong
authors.initials: NY
authors.lastname: Choi
authors.forename: Jun-Won
authors.initials: JW
authors.lastname: Kang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D001696:Biomechanical Phenomena; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000033:anatomy & histology* / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D016059:Range of Motion, Articular