Total Knee Arthroplasty with CAOS Augmentation

4 pages•Published: September 25, 2020

Abstract

This study sought to evaluate the efficiency, usage, and accuracy of a novel technology that augments mechanical instrumentation with intraoperative CAOS guidance. Technical reports on 411 primary TKA cases performed using the technology were reviewed. The results demonstrated high surgical efficiency (time) and resection accuracy (alignment and resection depth). Furthermore, it was observed that one fifth of the time, the surgeons placed the cutting block that deviated more than >2°/mm from the ideal position in the coronal plane. Substantial adjustments were found to be required (on average ~10 °/mm per case) to correct the initial placement of the cutting block. The CAOS augmentation minimized the error in cutting block placement and assisted in achieving high accuracy in bony resections. The findings revealed the prevalence of clinical error with manual conventional bony preparation that can be addressed with efficiency and accuracy by adding CAOS augmentation to the mechanical instrumentation.

Keyphrases: Accuracy, Augmented mechanical instrumentation, Computer-assisted orthopedic surgery, Intraoperative guidance, Total knee arthroplasty

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 49--52

Links:	https://easychair.org/publications/paper/TBFS
	https://doi.org/10.29007/qjzr