Prior to recruiting subjects, seven sports medicine fellowship- trained, board certified orthopedic surgeons met multiple times to ob- tain consensus on the definition of a surgically significant chondral le- sion. Representative arthroscopic photos from each surgeon's practice were reviewed, and it was agreed that a surgically significant chondral lesion would be defined as an Outerbridge Grade II, III, or IV lesion [7] that the treating surgeon judged to be one that they would typically treat with debridement. Thirteen representative arthroscopic videos were obtained from the surgeons' practices and graded by each surgeon in blinded fashion, and inter-rater reliability was calculated and found to be good (intra-class correlation coefficient (ICC) = 0.94, p b 0.001).