Comparison between computer-assisted and conventional methods in total knee replacement surgeries

Document Type

Conference Proceeding

Publication Date

1-1-2018

Abstract

Computer-assisted navigation system can improve accuracy of the coronal plane alignment and ultimately clinical outcomes. However, using this system may affect surgical times and operating room (OR) personnel productivity. This study evaluated surgery time and personnel resource utilization using computer-assisted navigation compared to conventional methods during total knee replacement (TKR) surgeries. A total of thirteen surgeries (six with navigation) were observed at two hospitals, performed by three surgeons. A time study was conducted to record surgical time, and percentage of time spent on value-added and non-value-added activities by the OR personnel (surgeon, implant company representative, nurse, and scrub tech) were collected through work sampling. The analysis showed that the value-added activities decreased by 18% for the company representative (p=0.005) and 17% for the scrub tech (p=0.025) while using the computer-assisted navigation system, while the nurse and surgeon did not show any significant differences (surgeon p=0.1 and nurse p=0.79). However, value-added time increased by 7% for the surgeon despite not being statistically significant. Navigation-assisted surgeries took significantly longer than traditional surgeries (75.00min (6.76min) versus 52.14min (14.33min), p=0.007). Although precision and accuracy of TKR surgeries may increase with the use of navigation systems, these systems may not improve OR personnel productivity.

Publication Source (Journal or Book title)

IISE Annual Conference and Expo 2018

First Page

647

Last Page

651

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