Entrapment of extensor pollicis longus, indicis proprius, and digitorum communis tendons in volarly displaced distal radius fracture has been previously reported. However, to the best of our knowledge, the entrapment of extensor carpi radialis brevis and longus tendons has not been reported. Case:We experienced 2 cases of these entrapments. In the first case, the entrapment was identified immediately and treated successfully. In the second case, the entrapment was diagnosed after union when the disturbance of wrist flexion became apparent. Conclusion:When there is a longitudinal fracture line at the vicinity of the second compartment, the entrapment of extensors should be suspected even when acceptable overall alignment is accomplished. Extensor tendon entrapment is one of the complications well-known to be related to Smith-type, or Goyrandtype in French literature, distal radius fractures 1 . In most of the reported cases, the extensor pollicis longus (EPL) tendon was entrapped 2,3 . The extensor indicis proprius (EIP) and extensor digitorum communis (EDC) entrapment was also reported 4,5 . In Galeazzi's fractures, the extensor carpi ulnaris tendon may also be involved 6 . However, intraoperatively confirmed entrapment of the extensor carpi radialis brevis and longus (ECRB, ECRL) tendons has not been previously reported. We report 2 cases of ECR tendon entrapment in volarly displaced distal radius fracture.The patients were informed that data concerning their cases would be submitted for publication, and they provided consent. Case ReportsC ASE 1. A 13-year-old teenage boy fell and injured his left wrist during playing soccer. He was diagnosed as having sustained a distal radius fracture involving the growth plate, consisted of a Salter-Harris type 2 (Fig. 1). Closed reduction was attempted to manipulate the volar displacement but was unsuccessful. Computed tomography revealed a longitudinal fracture line at the dorsoradial aspect of the distal radius, and the ECRB and ECRL tendons were found to be entrapped at the fracture site (Fig. 2). Surgery was performed immediately. The Fig. 1 Case 1. Plain radiographs at the time of injury. Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSCC/B785).
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