Digital extensor tendon transplantation, zone III-IV

It is suitable for the old injury of the left hand and back of the flap. The indication, middle, ring and little finger can not extend directly, and the metacarpophalangeal joint and passive flexion and extension are limited. Refers to the damage and adhesion of the total extensor tendon III area. Treatment of diseases: ulnar collateral ligament injury of the metacarpophalangeal joint of the thumb and metacarpophalangeal joint dislocation Indication It is suitable for the old injury of the left hand and back of the flap. The indication, middle, ring and little finger can not extend directly, and the metacarpophalangeal joint and passive flexion and extension are limited. Refers to the damage and adhesion of the total extensor tendon III area. Contraindications 1. The infection after the local injury has not been eliminated. 2. Injury refers to the passive flexion and extension of each joint. Preoperative preparation During the operation, 1 hour before the transplant is expected, a sterile table is additionally placed, which is separated from the surgical instrument vehicle to avoid pollution. The compound lactated Ringer's solution of 15-20 ° C was prepared in a rewarming container, and under the aseptic conditions, the cryopreserved allogeneic bone was taken out from the package in parallel with the first bacterial culture. The allogeneic tendon was placed in a thermostated compound lactated Ringer's solution for 15 minutes, and then taken out for the second bacterial culture. After washing for 5 min in an antibiotic solution (40,000 U gentamicin/100 ml), a third bacterial culture was performed. The allogeneic tendon is ready. Surgical procedure 1, the left side of the flap of the old injury, the indication, the middle, the ring, the little finger can not actively stretch, the metacarpophalangeal joint, passive flexion and extension is limited. Refers to the damage and adhesion of the total extensor tendon III area. 2, the back of the hand to the distal end of the forearm to make an "S"-shaped incision, subcutaneous peeling, seeing, middle, ring, small finger extensor tendon rupture, the distal and proximal ends are stuck in the scar. 3. Remove the scar on the trampoline and the sacral end, and pull the proximal end of the scapula from the proximal end of the transverse ligament of the wrist (fibrous sheath) and place it on the shallow side of the ligament. Refers to the defect of the total extensor tendon III-IV area. Specially treated allogeneic tendon transplantation. 4, with allogeneic tendon bridging to show a small finger refers to the total extensor tendon defect. Both ends were stitched with "8" with 5/0 non-invasive needle thread. 5. Close the wound. The palm side of the caster wrist and the metacarpophalangeal joint were overstretched for 4 weeks. complication Suppurative infection, infected wounds have pain, redness, tenderness, purulent secretions, etc., body temperature can be increased and neutrophils can be increased. Closed wounds may also be associated with various infections, such as post-injury aspiration, airway endocrine retention, and atelectasis secondary lung infections. Tetanus or gas gangrene may also occur after the injury, and the consequences are quite serious.