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International Journal of Advances In Case Reports

Volume 11, Issue 1, 2024
Mcmed International
International Journal of Advances In Case Reports
Issn
XXX-XXXX (Print), 2349 - 8005 (Online)
Frequency
bi-annual
Email
editorijacr@mcmed.us
Journal Home page
http://mcmed.us/about/ijacr
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Abstract
Title
VARIANT EXTENSOR CARPI RADIALIS LONGUS IN FOREARM– A CASE REPORT
Author
Komal L. Daswani*, Sharadkumar P. Sawant, Shaheen Rizvi
Email
komal.l.daswani@gmail.com
keyword
Extensor Carpi Radialis Longus, Variation, Radial Nerve, Surgeons, Compressive Neuropathies, Orthopaedicians, Fractures, Anaesthetist, Pain Management Therapy, Physiotherapist, Electromyography.
Abstract
During routine dissection, of the right upper limb of 70 years old donated embalmed male cadaver in the Department of Anatomy, K.J. Somaiya Medical College, Sion, Mumbai, India, we observed the variant extensor carpi radialis longus muscle. The extensor carpi radialis brevis was absent and the extensor carpi radialis longus was giving two tendons in the second compartment of extensor retinaculum before its insertion while passing deep to the abductor pollicis longus. The one tendon of extensor carpi radialis longus inserted into the radial side of the dorsal surface of the base of the second metacarpal bone while the other tendon inserted into the lateral dorsal surface of the base of the third metacarpal bone, with a few fibres inserting into the medial dorsal surface of the second metacarpal bone. The variant extensor carpi radialis longus was supplied by the radial nerve. The finding was noted after thorough and meticulous dissection of the upper limbs of both sides. The arterial pattern of upper limb was also observed. The variation was unilateral. The left upper limb was normal. The photographs of the variations were taken for proper documentation. The variant extensor carpi radialis longus muscle is clinically important for surgeons dealing with entrapment or compressive neuropathies, orthopaedicians operating on the fractures of the lower end of the humerus, anaesthetist performing pain management therapies on the upper limb and physiotherapist doing electromyography for evaluating and recording the electrical activity produced by skeletal muscles. A lack of knowledge of such type of variations might complicate surgical repair.
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