Forearm interosseous volar nerve entrapment syndrome release

There are many reasons for the dorsal nerve compression syndrome in the bone, which is closely related to the local anatomy. When the forearm is fully pre-rotated, the Frohse arch may compress the nerve. Therefore, the dorsal nerve between the bones is relatively fixed there, and the front and back are hard tissues. When the Frohse arch is adjacent to the tissue due to trauma or repeated flexion of the wrist joint When the anterior arm rotates after edema, inflammatory swelling, scar tissue formation or spastic tissue hyperplasia, the dorsal nerve of the bone can be compressed at the zygomatic arch to produce clinical symptoms. Treatment of diseases: anterior interosseous nerve compression syndrome Indication The patient indicated that the thumb and thumb were flexed and weak, and there was no sensory disturbance. Contraindications Severe compression, post-traumatic neuritis, space-occupying lesions, habitual spondylolisthesis. Preoperative preparation One week before the operation, the patients were fed nutritious and digestible foods. Those with weak constitution can supplement the appropriate amount of protein and vitamins by oral or intravenous infusion. 3 days before surgery, routine orthopedic preparation of skin, that is, on the first and second days, first wash the area with soapy water, disinfect the skin with iodine, ethanol and then use a sterile towel; after shaving the hair on the third day, after brushing and disinfecting Wrap with a sterile towel. Carefully check the determined preparations before the operation. A sedative can be given that night to ensure a good sleep. If the body temperature rises, or women's menstrual cramps, etc., the date of surgery is delayed. Before entering the operating room, the patient empties the urine; the catheter is placed in accordance with the length of the operation, so that the bladder is in an empty state. Surgical procedure 1. Cut the skin, peel off properly along the deep ribs, retract the wrist flexor and pronator, and expose the superficial flexor tendon. See the median nerve compression under the zygomatic arch. 2. Cut the zygomatic arch and loosen the nerve that is squeezed. See the nerve part in the indentation. Close the wound. complication Wound oozing: due to the separation and perforation of the surrounding tissues of the nerves during lysis, and the formation of a certain cavity or the origin of the small arteries, the rupture of the ligature, etc. plus the oozing and exudation in the incision More, if not completely drained can cause blood, which is the main reason for postoperative recurrence or aggravation of symptoms. Patients with postoperative wounds are generally given negative pressure drainage, pay attention to squeeze the drainage tube to prevent blockage of blood clots, keep the circulation smooth. Observe the amount and color of the drainage fluid and record it. The drainage volume was more than 24 hours after surgery, mostly bloody fluid; after 24 hours, it gradually decreased and stopped. For those who have not had a vacuum negative drainage, a 500 g sandbag can be used to wrap the wound with a sterile towel. In addition, severe incision hemorrhage can compress the trachea or due to tracheal intubation caused by surgical trauma leading to edema of the throat and suffocation, patients with progressive dyspnea, irritability, cyanosis, and even suffocation, immediately report to the doctor for bedside rescue. Sterile tracheostomy bags and gloves are routinely placed at the bedside for emergency use. There was no incision hematoma in this group.

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