Standardizing 3 Dimensional Measurements in Foot and Ankle Imaging: A Contemporary Review and Methodological Proposal

Increasing utilization of weight-bearing computed tomography and fluoroscopy has driven the need for standardization of 3 dimensional (3D) measurements in the foot and ankle. These emerging imaging modalities are currently used to evaluate foot and ankle conditions including ankle osteoarthritis, progressive collapsing foot deformity, midfoot instability, and hallux valgus. This study aims first to provide a comprehensive review of clinical studies that have utilized these 3D methodologies. As a second goal, this study presents the methodological approach proposed by an international task force of experts toward addressing those concerns to provide validated guidelines for 3D static and dynamic measurements.