Clin Orthop Surg.  2014 Sep;6(3):361-364. 10.4055/cios.2014.6.3.361.

Flexor Carpi Radialis Brevis: An Unusual Anomalous Muscle of the Wrist

• Lee YM
• Song SW
• Sur YJ
• Ahn CY

• KMID: 1794721
• DOI: http://doi.org/10.4055/cios.2014.6.3.361

Abstract

During imaging studies or surgical procedures, anomalous forearm and wrist muscles are occasionally encountered. Among them, the flexor carpi radialis brevis is very rare. Because the trend is growing toward treating distal radius fractures with volar plating, the flexor carpi radialis brevis is worth knowing. Here, we report two cases with a review of the literature.

Keyword

Flexor carpi radialis brevis; Anomalous muscle

MeSH Terms

Female
Forearm/*abnormalities
Fractures, Comminuted/surgery
Humans
Middle Aged
Muscle, Skeletal/*abnormalities
Radius Fractures/surgery
Ulna Fractures/surgery
Wrist/*abnormalities

Figure

• 

  Fig. 1 The wrist crease and hand are on the left side of the photograph. The flexor carpi radialis brevis (FCRB) runs between the flexor pollicis longus (FPL) and the brachioradialis. FCR: flexor carpi radialis.

• 

  Fig. 2 The wrist crease and hand are on the right side of the photograph. The flexor carpi radialis brevis (FCRB) originates from the volo-radial border of the distal one-third of the radius, and runs superficial to the pronator quadratus (PQ). The fracture is marked with a white arrowhead.

• 

  Fig. 3 Anatomical illustration of the flexor carpi radialis brevis (FCRB). The mid portion of the FCR is cut. The FCRB originates between the origin of the flexor pollicis longus (FPL) and the insertion of the pronator quadratus (PQ). The FCRB runs superficial to the PQ, and enters into the osteofibrous tunnel of the FCR.

Reference

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