Related Experiment Video
Updated: Jun 21, 2026

Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
Published on: May 26, 2023
Two different types of bowler's thumb
Keiichi Muramatsu1, Koji Yoshida, Toshihiko Taguchi
1Department of Orthopedic Surgery, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, Japan.
Surgery offers encouraging results for bowler's thumb (traumatic ulnar digital nerve neuropathy). Early diagnosis and protective measures are crucial for bowlers to prevent recurrence and ensure optimal outcomes.
Area of Science:
- Orthopedics
- Neurology
- Sports Medicine
Background:
- Bowler's thumb, a rare traumatic neuropathy of the thumb's ulnar digital nerve, can significantly impact bowlers.
- Understanding the distinct pathologies, such as nodular neuroma and epineural mass, is key for effective treatment.
Observation:
- Two rare cases of bowler's thumb were surgically treated, presenting with distinct lesion types identified via magnetic resonance imaging.
- The cases involved a nodular neuroma and an epineural mass, highlighting the varied presentations of this condition.
Findings:
- Surgical intervention yielded encouraging results for both patients with bowler's thumb.
- Magnetic resonance imaging effectively differentiated the types of lesions, aiding in diagnosis and surgical planning.
Implications:
- Postoperative protection from repetitive thumb trauma is vital for maintaining surgical success in active bowlers.
- Increased awareness among bowlers and clinicians can facilitate earlier diagnosis and treatment, improving patient outcomes.
- Modifications to bowling ball specifications and thumb hole design may mitigate the risk of recurrent bowler's thumb.
Related Concept Videos
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 radialis,...
Bones of the Upper Limb: Ulna
Muscles that Move the Forearm
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a short...
Spinal Nerves: Plexus I
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
Bones of the Upper Limb: Humerus
