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Ability to Achieve Mediolateral Gap Balance with Instrumented Navigated Total Knee Arthroplasty – A Review of the First 150 Cases

5 pagesPublished: December 13, 2022

Abstract

Appropriate management of the soft tissue envelope at the time of the surgery is critical to the long- term success of total knee arthroplasty (TKA). In this regard, this
computer-assisted orthopedic surgery (
a force-controlled intraarticular distractor. The first 150 cases performed by 16 surgeons were reported without any exclusions, and for each of these cases, the final mediolateral (ML) laxity was compared to the predicted ML laxity. The average signed ML laxity was well aligned with a neutral differential throughout the full arc of motion and ranged from -0.05mm at 35° of flexion to 0.37mm at 85° of flexion. The signed ML laxity curves tend to be surgeon specific. The average unsigned ML laxity was linear throughout the full arc motion and ranged from 1.14mm at 85° of flexion to 1.27mm
at 30° of flexion.
the targeted ML gap balance when using a
featuring
Despite data from all the users (not only design surgeons) involved with this pilot
release were considered and the learning curve cases were not excluded, it was observed a high ability
study evaluated the ability to achieve
CAOS) system
to achieve the targeted ML laxity using the proposed method.

Keyphrases: force controlled distractor, ligament laxity, soft tissue balance, total knee arthroplasty

In: Ferdinando Rodriguez Y Baena, Joshua W Giles and Eric Stindel (editors). Proceedings of The 20th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 5, pages 10-14.

BibTeX entry
@inproceedings{CAOS2022:Ability_Achieve_Mediolateral_Gap,
  author    = {Laurent Angibaud and Amaury Jung and Cyril Hamad and Wen Fan and Mark Davis and Brian Zirgibel and Jake Deister and James Huddleston},
  title     = {Ability to Achieve Mediolateral Gap Balance with Instrumented Navigated Total Knee Arthroplasty – A Review of the First 150 Cases},
  booktitle = {Proceedings of The 20th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Ferdinando Rodriguez Y Baena and Joshua W Giles and Eric Stindel},
  series    = {EPiC Series in Health Sciences},
  volume    = {5},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {/publications/paper/D1mH},
  doi       = {10.29007/d37h},
  pages     = {10-14},
  year      = {2022}}
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