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Sidney Goldman, MD; Joseph C. Honet, MD; Robert Sobel, MD; Abe S. Goldstein, MD

Arch Neurol. 1969;21(4):435-441.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

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 . . . [Full Text PDF of this Article]

Author Affiliations
Detroit

From the divisions of surgery (orthopedics) (Drs. Goldman and Sobel) and medicine (neurology) (Dr. Goldstein), and the Department of Rehabilitation Medicine, Sinai Hospital of Detroit, and the Department of Physical Medicine and Rehabilitation, Wayne State University School of Medicine (Dr. Honet), Detroit. Dr. Goldman is now at the Division of Orthopedic Surgery, Department of Surgery, University Hospitals of Cleveland, Case Western Reserve University, Cleveland.

Footnotes
Submitted for publication March 1, 1969; accepted June 2.

Reprint requests to Department of Rehabilitation Medicine, Sinai Hospital of Detroit, 6767 W Outer Dr, Detroit 48235 (Dr. Honet).

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