Posterior Interosseous Nerve Palsy Research Articles

Posterior interosseous nerve palsy secondary to synovial chondromatosis of the elbow joint

An unusual case of a relatively uncommon condition resulted in a bizarre compression of the posterior interosseous nerve at the arcade of Frohse.

A Neurologic Complication Following Monteggia Fracture

Posterior interosseous nerve palsy can occur following a Monteggia fracture by a variety of mechanisms. In this case report of a 35-year-old man the nerve became wrapped around an anterolaterally dislocated radial head in the course of an unsuccessful attempt as closed reduction. Cadaveric dissections demonstrated how reduction of the radial head can be blocked by an enwrapped nerve. Obviously open reduction of the fracture with exploration of the nerve is the treatment of choice.

Tardy palsy of the radial nerve from a Monteggia fracture

A case of tardy palsy of the radial nerve, which developed 65 years after a Monteggia fracture that remained unreduced, is described. The weakness recovered sufficiently well for a tendon transference to be unnecessary, partly because the patient was semiretired. This condition is rare but comparison with the only two similar reported cases of tardy radial and posterior interosseous nerve palsy associated with long-standing dislocation of the superior radio-ulnar joint suggests that the prognosis for recovery of such a palsy following excision of the radial head is better than might be expected.

Intraneural neurofibromas involving the posterior interosseous nerve.

Two patients presented with a posterior interosseous nerve palsy with supinator weakness. In each case an intraneural neurofibroma was found proximal to the supinator tunnel with no other stigmata of von Recklinghausen's disease. Both tumours showed a whorl-like histological pattern that has been previously confused with onion-bulb structures in hypertrophic polyneuropathy. Electron-microscopy was useful for the pathological diagnosis. The prognosis and treatment of the lesions are discussed.

Posterior interosseous nerve syndrome secondary to rheumatoid synovitis

Three additional cases of posterior interosseous-nerve paralysis secondary to rheumatoid arthritis were seen. All were initially diagnosed as extensor tendon ruptures and in one patient the extensor tendons were explored before proper diagnosis was made. The condition is a compression neuritis of the posterior interosseous nerve secondary to elbow synovitis bulging anteriorly against the overlying supinator muscle. Treatment by injection of steroids was successful in one patient; synovectomy cured the condition in the second; and a tendon transfer was used in the third.

Posterior Interosseous Nerve Syndrome Secondary to Rheumatoid Synovitis

Three additional cases of posterior interosseous-nerve paralysis secondary to rheumatoid arthritis were seen. All were initially diagnosed as extensor tendon ruptures and in one patient the extensor tendons were explored before proper diagnosis was made. The condition is a compression neuritis of the posterior interosseous nerve secondary to elbow synovitis bulging anteriorly against the overlying supinator muscle. Treatment by injection of steroids was successful in one patient; synovectomy cured the condition in the second; and a tendon transfer was used in the third.

Delayed palsy of Posterior Interosseous Nerve due to compression of the Arcade of Frohse and old anterior dislocation of the radial head

Delayed palsy of Posterior Interosseous Nerve due to compression of the Arcade of Frohse and old anterior dislocation of the radial head

Posterior interosseous nervepalsy in the absence of trauma.

WEAKNESS of the muscles innervated by the posterior interosseous nerve in patients with no history of trauma to the upper extremity is a rare clinical entity. This weakness can result from entrapment of the nerve by tumor, inflammation, or anatomic anomaly. If suspect, the diagnosis of nerve entrapment can be made clinically and proved with electromyography. Early diagnosis often allows successful surgical treatment. Functional Anatomy The posterior interosseous nerve or deep radial nerve (Fig 1) is the larger terminal division of the radial nerve. 1 Descending across the elbow under cover of the brachioradialis and extensor carpi radialis longus muscles, it supplies the extensor carpi radialis brevis and supinator muscles before reaching the proximal border of the latter. Entering the supinator, the deep radial nerve winds around the lateral side of the radius in the substance of the muscle. It passes through the muscle lengthwise between two thin

14 Posterior Interosseous Nerve Palsy as a Complication of Monteggia Fractures in Children

14 Posterior Interosseous Nerve Palsy as a Complication of Monteggia Fractures in Children

POSTERIOR INTEROSSEOUS NERVE PARALYSIS CAUSED BY A GANGLION AT THE ELBOW

1. A case of posterior interosseous nerve palsy from compression in the supinator muscle by what appeared to be a simple ganglion is described. 2. Surgical decompression led to an effective cure. 3. The course of the nerve through this muscle invites compression. 4. Rotation of the forearm, especially with super-added deformity of the limb, may increase the compresssion.