Allograft OATS® Set, Large
The Allograft OATS instrument set facilitates harvesting of large-diameter osteochondral/hyaline cartilage cylinders from allograft bone. The core is made by placing the condyle into the workstation and harvesting with the donor harvester. A 0.5 mm-undersized recipient socket is created using the appropriately sized recipient harvester. The exact depth of the allograft to match the socket is obtained with the depth measurement guide and the allograft is trimmed to the same depth and obliquity. Dilation of the socket results in a line-to-line fit once the donor allograft is inserted into the recipient socket. Final seating of the allograft is achieved with an oversized tamp, resulting in a perfectly flush, press-fit graft that does not require fixation implants.
The disposable donor and recipient cutting tube sets of the Osteochondral Autograft Transfer System (OATS) facilitate harvesting of various diameter osteochondral/hyaline cartilage cylinders from a donor site superior and lateral to the notch or above the sulcus terminalis. A recipient socket, sized to the proper depth, is created in the chondral defect to accept the donor graft. The bone cylinder is inserted with a collared pin delivery system for press-fit fixation. Harvesting and insertion depth are controlled with 5 mm depth markings. Final seating of the harvested cylinder, flush with the surrounding articular cartilage, is achieved with a slightly larger diameter Sizer/Tamp.