Arthroscopic discoid partial meniscectomy

Arthroscopic partial resection of the discoid meniscus is used for the treatment of congenital discoid meniscus. The goal is to remove the middle portion of the disc-shaped meniscus, leaving as much as possible the meniscus about the width of the normal lateral meniscus. Partial resection of the meniscus should begin and trim from the inner edge of the meniscus. Arthroscopy is the ideal choice. Treating diseases: meniscus injury Indication Arthroscopic partial resection of the discoid meniscus is suitable for complete or incomplete discoid meniscus with tear. Contraindications Stable, complete, incomplete and Wrisberg ligament congenital discoid meniscus. Preoperative preparation Regular preoperative examination. Surgical procedure 1. Insert a 30° arthroscope through the anterior lateral entrance of the knee, with a 4 position on the knee, and remove the inner edge with a small amount of the tongs through the anterior medial entrance. Radially cutting the disc-shaped meniscus from the inner edge improves the efficiency of the tongs and makes resection easier. 2. The anterior-lateral entrance can be used to place the curved arthroscope knife to the radially incision surrounding portion, so that the cutting direction is turned to the front in a semi-annular shape, so that the central portion of the disc-shaped meniscus can be cut. This method usually removes the middle third of the meniscus. The first 1/3 is preferably resected through the anterior medial entrance with a rotatable side-cutting forceps because the basket can cut tissue 90° to its long axis. 3. The rear third of the meniscus is trimmed with a basket clamp through the front outer entrance. If it is an incomplete disc-shaped meniscus, use an arthroscope to cut the middle part radially from the rear until it is 8 mm from the outer edge of the meniscus. 4. Insert the curved arthroscopic knife from the side of the lateral iliac crest, place the scalpel on the outer peripheral part of the radial incision, cut it in a semi-circular shape, retain the edge of 6~8mm tissue, and change the knife to the inner entrance to complete the cutting. 5. Use the medial side entrance to improve the viewing so that both front entrances can be used to insert instruments. After proper removal of the meniscus tissue and balance of the inner edge, the thickness of the inner edge should be greater than that of the conventional meniscus. 6. Thoroughly flush the joint cavity.