Handheld Scanners: Are They As Accurate as CT scans for Determining Trochlear Groove Geometry in Knees?

Description

In this presentation delivered by Jayesh Furnesh, a medical student from St George's, the focus is on evaluating the accuracy of hand-held 3D scanners in assessing trochlear groove geometry in lamb cadaveric knees, as compared to traditional CT scans. The presentation highlights the significance of trochlear dysplasia in patellar instability and introduces trochleoplasty as a surgical treatment based on measurements of the trochlear groove, including trochlear depth, sulcus angle, trochlear inclination, and lateral trochlear inclination angle. The research methodology involves scanning lamb knees with both CT scans and 3D handheld scanners, followed by dissection to expose the trochlear groove for direct observation and parameter comparison. Results indicate positive outcomes, with parameters such as trochlear inclination and sulcus angle showing minimal average differences from CT, suggesting the handheld scanner may serve as a reliable intraoperative imaging tool. Jayesh concludes by acknowledging the need for further research to validate this technology for clinical use, especially in human cadaver knees.

DOI: 10.1302/3114-230377

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