Related Experiment Video
Updated: Mar 23, 2026

Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
ACUTE LESION OF THE MOTOR BRANCH OF THE ULNAR NERVE IN THE WRIST AFTER TUG-OF-WAR TRAINING
Vladimir Ferreira Seguti1, Aloísio Fernandes Bonavides2, Leandro Pretto Flores3
1Orthopedist of the Federal District Health Department - Brasilia, DF, Brazil.
Abstract:
Papers correlating clinical and electrophysiological findings relating to ulnar nerve lesions in the wrist are uncommon in the literature, if compared with elbow injuries. We present the case of a patient with atrophy of the intrinsic musculature of the hand, secondary to injury only of the motor branch of the ulnar nerve, which is located in Guyon's canal close to the hamate hook. We review the anatomical, clinical and neurophysiological aspects of distal ulnar nerve injuries and we emphasize the importance of multidisciplinary approaches. Specifically in relation to the mechanism of injury of this patient (tug-of-war), we did not find any similar cases in the literature. We issue an alert regarding the risks during military physical training.
More Related Videos
Related Concept Videos
Bones of the Upper Limb: Ulna
Spinal Nerves: Plexus I
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a...
Muscles of the Forearm that Move the Hand and Fingers
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
Arteries of the Upper Limbs
Bones of the Upper Limb: Humerus

