Surgical Planning in Idiopathic Scoliosis: App Usability and Utility

Abstract

Objective: To evaluate the usability and usefulness of an application developed for surgical planning of scoliosis correction to measure the time spent on planning. Methods: Experimental, controlled, cross-sectional, and applied study. The application underwent a usability test using the SUS questionnaire, in addition to applying a questionnaire to assess its usefulness using the TAM utility perception model. Thirty-six volunteers were divided into three groups: residents, orthopedists from the Brazilian Society of Orthopedics and Traumatology (SBOT), and spine surgeons. Results: By applying the SUS questionnaire, the application obtained a score of 75.69, representing classification C on the Sauro and Lewis scale, the third best. The application’s utility was considered good after evaluating the positive responses of the TAM model. On average, planning through the application was 20% faster than manual planning. Conclusion: The Scoliplan application proved useful and optimizes surgical planning in AIS, as it establishes a step-by-step standardization supported by the literature (Suk classification); it helps the user with uniform and reliable planning. Level of Evidence III; Diagnostic Studies.