Forearm extensor surgery

Radial nerve injury varies with its location, and the paralyzed muscle groups also differ. Forearm radial nerve injury and paralysis muscles include: extensor extensor extensor muscle, long extensor hallucis longus, short extensor hallucis, radial short extensor wrist, ulnar extensor wrist, abductor hallucis longus, intrinsic small extensor digits, and extensor The finger muscles and the like weaken the back extension force of the wrist, the thumb extension and abduction disappear, and the extension force of each finger also disappears. In addition to the paralysis of the humerus radial nerve in addition to the paralysis of the above muscle groups, there is also the paralysis of the triceps brachii and the radial long wrist extension. As a result, the forearm stretching force also disappears, causing the wrist joint to sag. Radial nerve injury can be partial injury or complete injury due to its different injury properties (such as radial nerve amputation injury is complete injury, traction injury or bruising injury may be partial injury or major injury), and the paralyzed muscle groups are also different. Not the same. Forearm extensor surgery should be performed according to the paralyzed muscle group for tendon transfer. The method of tendon transfer is: 1. Use radial wrist flexor muscles (median nerve innervation) to transfer to the tendons of the extensor hallucis longus, short muscle and abductor hallucis longus to restore the functions of abduction and dorsal thumb extension. 2. Transfer the ulnar flexor wrist muscles (ulnar nerve innervation) to the extensor common muscle, the extensor index finger and the little finger tendon, and also restore the function of dorsal extensor fingers. 3. If the radial nerve above the elbow joint is injured, the radial extensor wrist long muscle is paralyzed, which causes the wrist to sag. Transfer the pronator circular muscle (median innervation) to the long and short tendons of the radial extensor wrist to restore the function of the extensor wrist.

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