Variations in the Anatomy of the Third Common Digital Nerve and Landmarks to Avoid Injury to the Third Common Digital Nerve With Carpal Tunnel Release
2008

Anatomy of the Third Common Digital Nerve and Injury Prevention in Carpal Tunnel Release

Sample size: 20 publication Evidence: moderate

Author Information

Author(s): Nitin J. Engineer, Hazani Ron M., Mowlavi Arian, Neumeister Michael W., Lee W. P. Andrew, Wilhelmi Bradon J.

Primary Institution: School of Medicine, University of Louisville

Hypothesis

Can anatomic variations of the third common digital nerve (TCDN) be identified to minimize injury during carpal tunnel release?

Conclusion

Understanding the anatomy of the TCDN can help prevent injuries during carpal tunnel release procedures.

Supporting Evidence

  • The TCDN is the most commonly injured digital nerve during carpal tunnel release.
  • Three anatomic variations of the TCDN were identified in the study.
  • Knowledge of TCDN anatomy can help surgeons avoid injury during procedures.

Takeaway

Doctors can learn where the third common digital nerve is located to avoid hurting it when they do surgery on the wrist.

Methodology

Dissection of 20 cadaveric hands to study the origin and course of the TCDN.

Limitations

The study is based on cadaveric dissections, which may not fully represent living anatomy.

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