Related Experiment Video
Updated: May 21, 2026
Metacarpal Small Incision for Carpal Tunnel Syndrome
Published on: April 5, 2024
Safe limited-open carpal tunnel release in the presence of aberrant anatomy
Purpose:
The presence of aberrant anatomy during a limited-open carpal tunnel release does not require conversion to an open procedure. We describe the occurrence of aberrant anatomy seen during limited-open carpal tunnel release, and suggest the safest way to proceed with carpal tunnel release once aberrant anatomy is encountered.
Methods:
A retrospective chart review was completed for patients who underwent limited-open carpal tunnel release between January 2000 and June 2007. The surgical record was examined to determine if any aberrant anatomy was encountered during the procedure.
Results:
Of the 1,227 hands operated on, 69 anomalies were identified. Two carpal tunnel releases were converted to open releases after it was determined that the aberrant motor branches precluded safe release with a limited-open technique
Conclusions:
An understanding of anatomical variations combined with vigilance and careful dissection enhances the chance for safe and effective limited-open carpal tunnel release.
