Partial median nerve entrapment in the distal arm because of an accessory bicipital aponeurosis

R. J. Spinner, S. W. Carmichael, M. Spinner

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We present a newly described entrapment of the median nerve caused by compression in the distal arm because of an accessory bicipital aponeurosis. It is characterized by the paresis or paralysis of muscles innervated by the anterior interosseous branch of the median nerve-the flexor pollicis longus, the flexor digitorum profundus, and the pronator quadratus-as well as other more proximal median nerve innervated muscles, namely, the pronator teres and flexor carpi radialis. Sensibility is intact. The site of the Tinel's sign in the distal arm and the clinical appearance of an accessory bicipital aponeurosis help to localize the lesion. Electrodiagnostic studies are also important in establishing the site of the entrapment. The clinical and surgical findings are correlated with the internal topography of the median nerve at its site of compression. It is important to differentiate this syndrome from the classic anterior interosseous syndrome and other nerve entrapments at the elbow and arm. Surgical exploration is indicated if there is no clinical or electromyographic improvement in three to four months after the onset of symptoms.

Original languageEnglish (US)
Pages (from-to)236-244
Number of pages9
JournalJournal of Hand Surgery
Volume16
Issue number2
DOIs
StatePublished - 1991

Fingerprint

Nerve Compression Syndromes
Median Nerve
Arm
Muscles
Paresis
Elbow
Paralysis
Aponeurosis

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Partial median nerve entrapment in the distal arm because of an accessory bicipital aponeurosis. / Spinner, R. J.; Carmichael, S. W.; Spinner, M.

In: Journal of Hand Surgery, Vol. 16, No. 2, 1991, p. 236-244.

Research output: Contribution to journalArticle

Spinner, R. J. ; Carmichael, S. W. ; Spinner, M. / Partial median nerve entrapment in the distal arm because of an accessory bicipital aponeurosis. In: Journal of Hand Surgery. 1991 ; Vol. 16, No. 2. pp. 236-244.
@article{973fe0bb47984c85981545dc17a3a7c9,
title = "Partial median nerve entrapment in the distal arm because of an accessory bicipital aponeurosis",
abstract = "We present a newly described entrapment of the median nerve caused by compression in the distal arm because of an accessory bicipital aponeurosis. It is characterized by the paresis or paralysis of muscles innervated by the anterior interosseous branch of the median nerve-the flexor pollicis longus, the flexor digitorum profundus, and the pronator quadratus-as well as other more proximal median nerve innervated muscles, namely, the pronator teres and flexor carpi radialis. Sensibility is intact. The site of the Tinel's sign in the distal arm and the clinical appearance of an accessory bicipital aponeurosis help to localize the lesion. Electrodiagnostic studies are also important in establishing the site of the entrapment. The clinical and surgical findings are correlated with the internal topography of the median nerve at its site of compression. It is important to differentiate this syndrome from the classic anterior interosseous syndrome and other nerve entrapments at the elbow and arm. Surgical exploration is indicated if there is no clinical or electromyographic improvement in three to four months after the onset of symptoms.",
author = "Spinner, {R. J.} and Carmichael, {S. W.} and M. Spinner",
year = "1991",
doi = "10.1016/S0363-5023(10)80103-0",
language = "English (US)",
volume = "16",
pages = "236--244",
journal = "Journal of Hand Surgery",
issn = "0266-7681",
publisher = "W.B. Saunders Ltd",
number = "2",

}

TY - JOUR

T1 - Partial median nerve entrapment in the distal arm because of an accessory bicipital aponeurosis

AU - Spinner, R. J.

AU - Carmichael, S. W.

AU - Spinner, M.

PY - 1991

Y1 - 1991

N2 - We present a newly described entrapment of the median nerve caused by compression in the distal arm because of an accessory bicipital aponeurosis. It is characterized by the paresis or paralysis of muscles innervated by the anterior interosseous branch of the median nerve-the flexor pollicis longus, the flexor digitorum profundus, and the pronator quadratus-as well as other more proximal median nerve innervated muscles, namely, the pronator teres and flexor carpi radialis. Sensibility is intact. The site of the Tinel's sign in the distal arm and the clinical appearance of an accessory bicipital aponeurosis help to localize the lesion. Electrodiagnostic studies are also important in establishing the site of the entrapment. The clinical and surgical findings are correlated with the internal topography of the median nerve at its site of compression. It is important to differentiate this syndrome from the classic anterior interosseous syndrome and other nerve entrapments at the elbow and arm. Surgical exploration is indicated if there is no clinical or electromyographic improvement in three to four months after the onset of symptoms.

AB - We present a newly described entrapment of the median nerve caused by compression in the distal arm because of an accessory bicipital aponeurosis. It is characterized by the paresis or paralysis of muscles innervated by the anterior interosseous branch of the median nerve-the flexor pollicis longus, the flexor digitorum profundus, and the pronator quadratus-as well as other more proximal median nerve innervated muscles, namely, the pronator teres and flexor carpi radialis. Sensibility is intact. The site of the Tinel's sign in the distal arm and the clinical appearance of an accessory bicipital aponeurosis help to localize the lesion. Electrodiagnostic studies are also important in establishing the site of the entrapment. The clinical and surgical findings are correlated with the internal topography of the median nerve at its site of compression. It is important to differentiate this syndrome from the classic anterior interosseous syndrome and other nerve entrapments at the elbow and arm. Surgical exploration is indicated if there is no clinical or electromyographic improvement in three to four months after the onset of symptoms.

UR - http://www.scopus.com/inward/record.url?scp=0026073280&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026073280&partnerID=8YFLogxK

U2 - 10.1016/S0363-5023(10)80103-0

DO - 10.1016/S0363-5023(10)80103-0

M3 - Article

C2 - 2022831

AN - SCOPUS:0026073280

VL - 16

SP - 236

EP - 244

JO - Journal of Hand Surgery

JF - Journal of Hand Surgery

SN - 0266-7681

IS - 2

ER -