Open AccessVariability in Coronal Knee Laxity Measured During Computer-Assisted Total Knee Arthroplasty
Author(s) -
Yifei Dai,
Charlotte Bolch,
Andrew Jensen,
A. Jung
Publication year - 2020
Publication title -
epic series in health sciences
Language(s) - English
Resource type - Conference proceedings
ISSN - 2398-5305
DOI - 10.29007/w2b4
Subject(s) - coronal plane , valgus , orthodontics , soft tissue , total knee arthroplasty , arthroplasty , range of motion , medicine , surgery , anatomy
Principal component analysis on 376 TKA knees presented the distinctive patterns and variabilities in the coronal knee angular laxity throughout the range of motion, measured post-implantation during computer-assisted total knee arthroplasty. The variability in the laxity curves were dominated by the first mode of variation (varus/valgus offset of the laxity envelope) and the second mode of variation (varus/valgus crossing pattern). Further analysis revealed that surgeon-specific impact was associated with the first mode of variation for the laxity curve, and both first and second mode of variation for the size of the laxity envelope. The results shed a light on the characteristics and variabilities of post-implantation soft-tissue laxity under surgical reality and may be used to further understand the clinical implications of intraoperative soft-tissue management.