CME OnDemand: 2022 AOFAS Annual Meeting-Evaluation of Articular Morphology and Congruency Using A Combination of 3 Dimensional CT Based Bone Segmentation and Joint Surface Mapping

Evaluation of Articular Morphology and Congruency Using A Combination of 3 Dimensional CT Based Bone Segmentation and Joint Surface Mapping

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Video Transcription

Video Summary

In this video, Shuyuan Li presents a study on evaluating articular morphology and congruency using a combination of three-dimensional CT-based bone segmentation and joint surface matting. The limitations of using X-rays and CT scans for evaluating joint congruency are discussed. The study introduces a novel joint surface mapping technique using 3D surface scanning to determine articular morphology and congruency. Fresh frozen cadaver feet without trauma or deformities were used for the study. CT scans were used for 3D segmentation and reconstruction of the calcaneus and cuboid bones. The CT scan reconstructions were merged with surface mapping reconstructions to determine cartilage surface coverage. The study concludes that 3D surface scanning is a reliable method for studying the morphology of cartilage surfaces in joints and that CT reconstruction combined with surface mapping is a useful tool for studying both bony and cartilage surfaces. The implications of this study for joint treatment and the investigation of articular congruence under weight-bearing conditions are also mentioned. The video includes references to additional material.

Asset Subtitle

Robyn M. Pierce, Mingjie Zhu, DAOM, MPH, Kenneth J. Hunt, MD, Caley M. Orr, Mark S. Myerson, MD, and Shuyuan Li, MD, PhD

Keywords

articular morphology

congruency

three-dimensional CT-based bone segmentation

joint surface matting

joint treatment