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J Hand Surg Am. 2012 Apr;37(4):689-94. doi: 10.1016/j.jhsa.2011.12.033. Epub 2012 Feb 24.

Carpal tunnel release using the MANOS CTR system: preliminary results in 52 patients.

Author information

1
Department of Neurosurgery, St. Francis Memorial Hospital, San Francisco, USA. rhosel@neurospine.org

Abstract

PURPOSE:

To describe a carpal tunnel release technique using the MANOS Carpal Tunnel Release device, with preliminary results in 52 patients.

METHODS:

The MANOS Carpal Tunnel Release device is a blade that divides the transverse carpal ligament using wrist and palm skin punctures. The awake patient provides feedback as the surgeon navigates a 2.1-mm-diameter blunt probe across the undersurface of the ligament from a wrist incision with standard disposable nerve stimulator monitoring. The leading tip of the blunt probe is uninsulated and conducts 2 mA. The surgeon converts the blunt insulated probe into an uninsulated blade by advancing a 0.9-mm needle through the palm with a thumb-activated deployment feature. The surgeon saws the ligament through the 2 skin punctures. We used a validated outcome questionnaire to assess postoperative symptoms at 3 months.

RESULTS:

Symptom severity and functional status scores compare favorably with literature controls for open and endoscopic surgery at 3 months. One patient required reoperation for incomplete release. There were no tendon or nerve injuries.

CONCLUSIONS:

Preliminary results suggest the MANOS Carpal Tunnel Release device to be safe and effective.

TYPE OF STUDY/LEVEL OF EVIDENCE:

Therapeutic IV.

PMID:
22365713
DOI:
10.1016/j.jhsa.2011.12.033
[Indexed for MEDLINE]
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