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A simple arthroscopic technique was introduced without the need for further staff during the operation. A 2.4 mm pin is positioned through the sleeve of an ACL tibial guide and it is marked with a steri-strip at its body, aiming at 5-10 mm distance between the tips of guide and the pin. The steri-strip serves as a mark and as a stop for inadvertent violation of the cartilage. The tip of the ACL is positioned just over the bone lesion, while the marked 2.4 mm pin is inserted through the ACL tibial guide from anterior surface of the femur. A stab incision is made and without advancing the sleeve to the bone, the pin is drilled to the marked position while cartilage integrity is confirmed arthroscopically. Our arthroscopic technique is simple, fast and effective and it is performed without the need of a special equipment.
Keywords: Avascular necrosis; Osteonecrosis; Knee joint; Arthroscopic; Decompression.
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