Hourglass-like constriction of the anterior interosseous nerve in the left forearm: A case report

Abstract

BACKGROUND Hourglass-like constriction neuropathy is a rare neurological disorder. The main clinical manifestation is peripheral nerve injury with no apparent cause, and the pathomorphological change is an unexplained narrowing of the diseased nerve. The diagnosis and treatment of the disease are challenging and there is no accepted diagnostic or therapeutic approach. CASE SUMMARY This report describes a rare hourglass constriction of the anterior interosseous nerve in the left forearm in a 47-year-old healthy male who was treated surgically and gradually recovered function over a 6-mo follow-up period. CONCLUSION Hourglass-like constriction neuropathy is a rare disorder. With the development of medical technology, more examinations are now available for diagnosis. This case aims to highlight the rare manifestations of Hourglass-like constriction neuropathy and provides a reference for enriching the clinical diagnosis and treatment experience.

Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review

“…Another condition, similar from a radiological point of view to hourglass constriction, is nerve torsion (in this case, the process can also be partial, involving only few fascicles, or complete, involving the entire nerve) [8]. The most common involved nerves are the radial nerve (RN) along with the posterior interosseous nerve (PIN), its main branch, and the median nerve and its main branch, the anterior interosseous nerve (AIN), while the involvement of the musculocutaneous, the suprascapular and the axillary nerves is rare [9][10][11][12][13]. More rarely, other nerves are involved, and cases of nerve root involvement have been sporadically described in the literature.…”