Bilateral Carpal Tunnel Syndrome Associated with Unilateral Duplication of the Flexor Digitorum Superficialis Muscle: A Case Report

HAND ◽  
1982 ◽  
Vol os-14 (1) ◽  
pp. 48-50 ◽  
Author(s):  
T. F. Gleason ◽  
E. Abraham
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Flexor Digitorum Superficialis ◽  
Adult Onset ◽  
Aged Patient ◽  
Accessory Muscle ◽  
Tunnel Syndrome ◽  
Flexor Digitorum ◽  
Bilateral Carpal Tunnel Syndrome

A middle aged patient with adult onset of bilateral carpal tunnel syndrome was found to have a unilateral duplication of the flexor digitorum superficialis muscle. The role of this rare accessory muscle in causing the syndrome is questioned.

scholarly journals Median Nerve Variation: A Complete Spin before Terminal Branching

2020 ◽  
Vol 15 (01) ◽  
pp. e1-e4
Author(s):  
Amgad S. Hanna ◽  
Zhikui Wei ◽  
Barbara A. Hanna
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Distal Forearm ◽  
Flexor Digitorum Superficialis ◽  
Anatomical Variant ◽  
Motor Branch ◽  
Surgical Interventions ◽  
Tunnel Syndrome ◽  
Flexor Digitorum

AbstractMedian nerve anatomy is of great interest to clinicians and scientists given the importance of this nerve and its association with diseases. A rare anatomical variant of the median nerve in the distal forearm and wrist was discovered during a cadaveric dissection. The median nerve was deep to the flexor digitorum superficialis (FDS) in the carpal tunnel. It underwent a 360-degree spin before emerging at the lateral edge of FDS. The recurrent motor branch moved from medial to lateral on the deep surface of the median nerve, as it approached the distal carpal tunnel. This variant doesn't fall into any of Lanz's four groups of median nerve anomalies. We propose a fifth group that involves variations in the course of the median nerve. This report underscores the importance of recognizing variants of the median nerve anatomy in the forearm and wrist during surgical interventions, such as for carpal tunnel syndrome.

scholarly journals Anomalous Flexor Digitorum Superficialis Muscle Transposition for Vascular Coverage of the Median Nerve in Recurrent Carpal Tunnel Syndrome

2005 ◽  
Vol 13 (1) ◽  
pp. 27-30
Author(s):  
Michael W Neumeister ◽  
Arian Mowlavi ◽  
Robert C Russell ◽  
Bradon J Wilhelmi
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Excellent Result ◽  
Vascular Supply ◽  
Flexor Digitorum Superficialis ◽  
Palmar Fascia ◽  
Anomalous Muscle ◽  
Tunnel Syndrome ◽  
Flexor Digitorum

Recurrent carpal tunnel syndrome is uncommon yet troublesome. Significant adhesions and scarring around the median nerve can render it relatively ischemic. A number of vascular flaps have been described to provide vascular coverage in attempts to decrease further cicatricial adhesions and to improve local blood supply around the median nerve. A rare case of an anomalous muscle in the distal forearm used as tissue to provide good vascularized coverage of the median nerve that was severely scarred in its bed is reported. The anomalous muscle was distal to the flexor digitorum superficialis tendon and inserted in the palmar fascia on the ulnar aspect of the hand. Referring branches from the ulnar artery provided vascular supply to the anomalous muscle. The muscle on these vascular pedicles was transposed over the median nerve, providing good, stable, unscarred coverage. The patient had an excellent result with resolution of the carpal tunnel symptoms. The redundant anomalous muscle provided a unique vascularized source for coverage of the median nerve in recurrent carpal tunnel syndrome.

scholarly journals Carpal Tunnel Syndrome Caused by an Aberrant Flexor Digitorum Superficialis Muscle. A Case Report.

1991 ◽  
Vol 39 (3) ◽  
pp. 1272-1275
Author(s):  
Kazuo Itoh ◽  
Eiji Hirano ◽  
Takashi Kawai ◽  
Kazuya Kimura ◽  
Yoshifumi Nagatani ◽  
...  
Keyword(s):  
Case Report ◽  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Flexor Digitorum Superficialis ◽  
Tunnel Syndrome ◽  
Flexor Digitorum
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