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Flexor carpi radialis brevis: case report of a symptomatic tear

  • Anthony M. Kordahi
  • Kara L. Sarrel
  • Sameer B. Shah
  • Eric Y. Chang
Case Report

Abstract

Anatomical variants of muscle are commonly encountered by surgeons and radiologists. The flexor carpi radialis brevis (FCRB) is an anomalous muscle in the distal forearm with an estimated prevalence of 2–8%. In the literature, there are a few case reports of symptomatic FCRB tenosynovitis without a concomitant tear, and treatment methods described include both conservative and surgical management. We present a case of one patient with radial sided wrist pain and a partial FCRB tear, which to our knowledge is the first case report of a symptomatic FCRB tear. We also review existing literature regarding FCRB anatomy, particularly related to intra-operative dissection and exposure. Identification of an anomalous FCRB on imaging may serve to guide clinicians in their differential diagnosis of radial-sided wrist pain, in which FCRB pathological conditions ought to be included.

Keywords

Flexor carpi radialis brevis FCRB Anomalous muscle Flexor Anatomy Distal radius Volar wrist 

Notes

Funding

This study was funded by grant I01CX001388 of the VA Clinical Science Research and Development Service.

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflicts of interest.

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Copyright information

© ISS 2018

Authors and Affiliations

  • Anthony M. Kordahi
    • 1
  • Kara L. Sarrel
    • 2
  • Sameer B. Shah
    • 2
  • Eric Y. Chang
    • 3
  1. 1.Division of Plastic SurgeryUniversity of California San DiegoSan DiegoUSA
  2. 2.Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoUSA
  3. 3.Radiology ServiceVeterans Affairs San Diego Healthcare SystemSan DiegoUSA

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