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Related Concept Videos

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The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
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Related Experiment Video

Updated: Aug 1, 2025

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
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Bilateral extensor digitorum brevis manus.

E Fernández Diez1, E Marti1, J Redondo Sedano1

  • 1Pediatric Surgery Department. Hospital Universitario 12 de Octubre. Madrid (Spain).

Cirugia Pediatrica : Organo Oficial De La Sociedad Espanola De Cirugia Pediatrica
|April 24, 2023
PubMed
Summary
This summary is machine-generated.

The extensor digitorum brevis manus (EDBM) is a rare cause of hand pain, particularly in young patients. Surgical excision of this accessory muscle effectively alleviates associated wrist pain and masses.

Keywords:
Extensor digitorum brevis manusMuscle abnormalitiesWrist surgery

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Area of Science:

  • Orthopedic Surgery
  • Anatomy

Background:

  • The extensor digitorum brevis manus (EDBM) is an accessory muscle located on the dorsum of the hand.
  • It can present as a symptomatic, painful mass, often requiring surgical intervention.

Observation:

  • A 14-year-old male presented with bilateral painful dorsal hand masses.
  • Ultrasound imaging confirmed the presence of bilateral extensor digitorum brevis manus.

Findings:

  • Surgical treatment, specifically resection of the EDBM muscle masses, was performed.
  • The patient experienced significant improvement in symptoms post-surgery.

Implications:

  • EDBM is an uncommon etiology of wrist pain, especially in pediatric and adolescent populations.
  • Surgical management offers a significant positive impact on symptom resolution for affected individuals.