Arch Plast Surg.  2018 Sep;45(5):474-478. 10.5999/aps.2017.00724.

Recurrent carpal tunnel syndrome associated with extension of flexor digitorum muscle bellies into the carpal tunnel: A case series

Affiliations
  • 1Department of Medicine, University of Connecticut, Farmington, CT, USA.
  • 2Division of Rheumatology and Immunology, Department of Medicine, Stanford University, Stanford, CA, USA.
  • 3Section of Plastic/Reconstructive Surgery, Department of Surgery, Hartford Hospital, Hartford, CT, USA.
  • 4Division of Rheumatology, Department of Medicine, Hartford Hospital, Hartford, CT, USA. Christopher.Scola@hhchealth.org

Abstract

While the success or failure of carpal tunnel release ultimately depends on the interplay of a wide array of factors, a broad understanding of the normal anatomy of the carpal tunnel accompanied by awareness of the possible variations of the individual structures that make up its contents is crucial to optimizing surgical outcomes. While anatomic variants such as extension of the flexor digitorum muscle bellies have been described as a cause of primary carpal tunnel syndrome (CTS), there have been no reports depicting its association with recurrent CTS following initially successful carpal tunnel release, a finding with potentially significant prognostic implications that can aid in operative planning. In such cases where muscle extension is identified preoperatively, careful debulking of the muscle belly may be beneficial in improving long-term surgical outcomes.

Keyword

Carpal tunnel syndrome; Median nerve; Forearm; Hand; Reoperation

MeSH Terms

Carpal Tunnel Syndrome*
Forearm
Hand
Median Nerve
Reoperation
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