Magnuson surgery

Recurrent dislocation of the shoulder joint is a common complication of traumatic shoulder dislocation, which usually occurs within 2 years after the original dislocation. It often causes recurrence of shoulder dislocation when subjected to slight external force. As the dislocation recurs, the joint becomes more and more unstable. The pathological changes of this injury include the rupture of the joint capsule, the defect on the anterior lip of the scapula, and the humeral head. Posterior lateral compression fracture. There is also a non-invasive dislocation, usually the shoulder joint is normal, and the muscle can be dislocated by a slight muscle pull. This dislocation often has anatomical developmental variations. The corresponding surgical methods should be adopted according to different pathological changes in treatment. Treatment of diseases: joint dislocation Indication Magnuson surgery is suitable for: 1. The anterior dislocation of the shoulder joint recurs frequently, affecting work and daily life. 2. There are only a few recurrences of dislocation, and the interval between dislocations is very long. Those who have little impact on work and life should not be operated. Those with special occupational requirements should be strictly weighed and carefully implemented. Surgical procedure Incision The anterior medial incision of the shoulder joint is performed to expose the anterior shoulder sleeve of the shoulder joint. For the method and procedure, see "Overlap suture of the subscapular muscle joint capsule". 2. Free subscapularis muscle Externally rotate the upper arm to find the subscapularis muscle, and make all the mouths on the upper and lower edges. The incision starts at the junction of the muscle tendon and extends outward until the attachment point of the muscle on the small nodule of the tibia. The depth of the incision shall include the deep anterior wall of the joint capsule; a thin bone piece with the attachment of the subscapularis muscle is cut from the small nodule of the humerus, and two needles are sutured at the sacral end, and the inferior scapular tendon and the anterior wall of the joint capsule are picked up. , revealing the humeral head and the anterior border of the joint. 3. Reconstruct the new attachment point of the subscapularis muscle Internally rotate the upper arm to reveal the greater tibia. The scapularis tendon and the tissue flap of the anterior wall of the joint capsule were pulled over the biceps sulcus to the large nodule. After selecting the new attachment point of the subscapularis muscle, a shallow bone groove was drilled in the greater tibia. The free end of the subscapularis tendon and the bone piece attached thereto are then sutured in a bone groove with a thick thread. It can also be fixed with screws or staples. The upper and lower edges of the subscapularis tendon were sutured intermittently with adjacent tissues, and the sacral ends were embedded with soft tissue around the large nodules. 4. Sew the incision according to the level.

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