Economy of Hand Motion During Cleft Palate Surgery Using a High-Fidelity Cleft Palate Simulator.

Abstract:

OBJECTIVE:The objectives of this study were to assess economy of hand motion of residents, fellows, and staff surgeons using a high-fidelity cleft palate simulator to (1) stratify performance for the purpose of simulator validation and (2) to estimate the learning curve. DESIGN:Two residents, 2 fellows, and 2 staff surgeons performed cleft palate surgery on a high-fidelity cleft palate simulator while their hand motion was tracked using an electromagnetic hand sensor. The time, number of hand movements, and path length of their hands were determined for 10 steps of the procedure. The magnitude of these metrics was compared among the 3 groups of participants and utilized to estimate the learning curve using curve-fitting analysis. RESULTS:The residents required the most time, number of hand movements, and path length to complete the procedure. Although the number of hand movements was closely matched between the fellows and staff, the overall total path length was shorter for the staff. Inverse curves were fit to the data to represent the learning curve and 25 and 113 simulation sessions are required to reach within 5% and 1% of the expert level, respectively. CONCLUSION:The simulator successfully stratified performance using economy of hand motion. Path length is better matched to previous level of experience compared to time or number of hand movements.

authors

Ghanem A,Podolsky DJ,Fisher DM,Wong Riff KW,Myers S,Drake JM,Forrest CR

doi

10.1177/1055665618793768

subject

Has Abstract

pub_date

2019-04-01 00:00:00

pages

432-437

issue

4

eissn

1055-6656

issn

1545-1569

journal_volume

56

pub_type

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