Long term functional outcome for the cubital tunnel syndrome after endoscopic assisted release of the ulnar nerve

Introduction: The endoscopic assisted release for cubital tunnel syndrome (CuTS) gained popularity in recent years with unclear long-term results. This study aims to evaluate long term results regarding functional and subjective outcomes after endoscopic assisted release for the CuTS.

Materials and methods: Thirty one patients who have been treated by endoscopic assisted release for CuTS between 2006 and 2013 were followed up both clinically and with a questionnaire with a mean follow up of 152 months (range 120-204 months). Functional and subjective parameters were evaluated and statistically compared to the contralateral elbow. For statistical evaluation one-sample t-test and the McNemar test were defined as appropriate.

Results: Pinch grip strength, two-point discrimination, application of Semmes-Weinstein monofilaments, Tinel's sign, grip and three-point pinch strength showed no significant difference. The DASH score was 14,2 with 96,6% of patients rating good/excellent results.

Conclusions: This study found the endoscopic assisted release of the ulnar nerve to be an efficacious and safe method for the treatment of CuTS.