Does augmented reality improve clinical outcome in TKA? A prospective observational report.

5 pages•Published: December 13, 2022

Philippe Van Overschelde, Pieter Vansintjan, Pieter Byn, Cynthia Lapierre and Wouter Van Lysebettens

Abstract

AIMS: The Pixee Knee+ system offers intraoperative assistance through augmented reality glasses. This allows the surgeon to see the tibial and femoral axis depicted on the surgical field, providing real-time information during surgery.
METHODS: 122 patients received TKA surgery with the Pixee Knee+ system, and were matched based on gender and age to 122 patients who received conventional surgery. PROMs (Oxford knee Score, KOOS, and Forgotten Joint score) were collected preoperatively, at 6 weeks and 3 months. The difference between the scores at 6 weeks versus preoperative (Delta) was analyzed over time of surgery, in order to evaluate any possible surgeon learning curve.
RESULTS: Pixee patients scored significantly lower on the symptoms sub-scale of the KOOS score at 6 weeks. Similarly, at 3 months, the Quality of life sub-score, Forgotten Joint score and Oxford Knee Score were all significantly worse for the Pixee group. When analyzing the Delta KOOS over time, a clear increase in the linear model could be established for the Pixee group, whereas the Delta KOOS outcomes in the conventional group remained at a plateau.
CONCLUSION: The use of the Pixee Knee+ system results in an initial inferior clinical outcome when comparing the average of the two groups. This is likely explained by a learning curve, which shows an increase over time of the Delta KOOS at 6 weeks in the Pixee group. To what extent this increase over time will persist remains to be investigated

Keyphrases: augmented reality, pixee, prom, tkp, 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 170-174.

Links:	https://easychair.org/publications/paper/DfmS
	https://doi.org/10.29007/wt68

BibTeX entry

@inproceedings{CAOS2022:Does_augmented_reality_improve,
  author    = {Philippe Van Overschelde and Pieter Vansintjan and Pieter Byn and Cynthia Lapierre and Wouter Van Lysebettens},
  title     = {Does augmented reality improve clinical outcome in TKA? A prospective observational report.},
  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/DfmS},
  doi       = {10.29007/wt68},
  pages     = {170-174},
  year      = {2022}}

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