extensor tendon device reconstruction

The extensor tendon reconstruction is used for the surgical treatment of rheumatoid arthritis of the hand joint. Treating diseases: rheumatoid arthritis Indication The extensor tendon reconstruction is suitable for moderate buttonhole deformities, which can be corrected by hand, and X-ray films show mild joint damage. Surgical procedure 1. Incision and exposure A longitudinal incision is made in the longitudinal direction of the finger, through the proximal interphalangeal joint and the distal interphalangeal joint to the distal end of the distal end of the finger. Cut the skin and subcutaneous tissue to reveal the extensor tendon. 2. Loosening and shortening Cut the transverse support ligaments along the sides to fully dissociate the displaced side bundles. The two side bundles were cut at the proximal side of the distal interphalangeal joint, the abutment of the intermediate bundle at the distal end of the middle phalanx was retained, the intermediate bundle was severed, and the resection was about 6 mm long. The joint capsule of the dorsal side of the proximal interphalangeal joint was cut transversely, and the joint capsule was sutured after the synovial membrane was completely removed. The two stumps of the middle bundle are stitched and fixed, and the proximal interphalangeal joint contraction caused by shortening should be avoided. At the proximal side of the middle phalanx, the two sides of the bundle are stitched to the intermediate bundle, or the two sides are sewed together. Attention should be paid to the suture tension so that the proximal interphalangeal joint can be flexibly flexed to 80°. 3. Fixed Use a Kirschner wire to slant through the proximal knuckle and secure it to the extension. Stitch the skin.