Image-guided techniques improve accuracy of mosaic arthroplasty.

Purpose Mosaic arthroplasty is a surgical technique in which a set of cylindrical osteochondral grafts is transplanted from non-load-bearing areas of the joint to repair damaged articular cartilage. Incongruity between the graft surface and the adjacent cartilage at the repair site results in inferior clinical outcomes. This paper compares technical outcome using three mosaic arthroplasty techniques (conventional, optoelectronic, and patient-specific template) on femur models.