Variability in Coronal Knee Laxity Measured During Computer-Assisted Total Knee Arthroplasty

4 pages•Published: September 25, 2020

Yifei Dai, Charlotte Bolch, Andrew Jensen and Amaury Jung

Abstract

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.

Keyphrases: intraoperative laxity curve, principle component analysis, total knee arthroplasty, variability

In: Ferdinando Rodriguez Y Baena and Fabio Tatti (editors). CAOS 2020. The 20th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 4, pages 45-48.

Links:	https://easychair.org/publications/paper/hBg8
	https://doi.org/10.29007/w2b4

BibTeX entry

@inproceedings{CAOS2020:Variability_Coronal_Knee_Laxity,
  author    = {Yifei Dai and Charlotte Bolch and Andrew Jensen and Amaury Jung},
  title     = {Variability in Coronal Knee Laxity Measured During Computer-Assisted Total Knee Arthroplasty},
  booktitle = {CAOS 2020. The 20th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Ferdinando Rodriguez Y Baena and Fabio Tatti},
  series    = {EPiC Series in Health Sciences},
  volume    = {4},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {/publications/paper/hBg8},
  doi       = {10.29007/w2b4},
  pages     = {45-48},
  year      = {2020}}

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