Osteochondral autograft/allograft transplantation (see text). A, Posteromedial osteochondral lesion of talus (arrow). B, Coronal and axial plane CT images. C, Medial malleolar chevron-type osteotomy. D, Shoulder lesion of talus. E, Trial sizer for recipient harvester. F, Recipient harvester. G, Plug 10 to 12 mm in depth removed from recipient hole. H, Prepared recipient hole. I, Excised osteochondral lesion. J, Multiple holes drilled at base of lesion. K, Autograft obtained from femoral condyle using donor harvester (for talar shoulder lesions, graft is obtained from corner of trochlea). L, Donor graft in harvester. M and N, Graft placed in recipient hole. O, Osteotomy secured with two partially threaded cancellous screws (holes predrilled before osteotomy). SEE TECHNIQUE 90.10.