Deviation From AI-Predicted Implant Sizes in Total Hip Arthroplasty Is Associated With Increased Complication Risk

A free AI-assisted prediction tool (Mortho) demonstrated strong accuracy and generalizability for implant sizing in primary THA, particularly in standard cases. Predictions mirrored arthroplasty-trained surgeons' selections and outperformed radiographic templating, supporting patient characteristic-based AI as a valuable adjunct for THA planning.