Articular Cartilage Repair Using Marrow Stimulation Augmented with a Viable Chondral Allograft: 9-Month Postoperative Histological Evaluation

Figure 4

Repaired trochlear defect. Nine months following the trochlear defect repair, the repaired trochlear was visualized. Of note, there was a hyaline-like material and fraying of hyaline cartilage around the damaged area. No bare bone was observed. The fraying around the graft was determined to be clinically inconsequential and did not represent interference of stable fixation between the underlying graft and the bone. The density of the repair tissue was consistent with the surrounding, normal chondral tissue.