Combined Cubital and Carpal Tunnel Release Results in Symptom Resolution Outside of the Median or Ulnar Nerve Distributions

Peter C Chimenti, Allison W McIntyre, Sean M Childs, Warren C Hammert, John C Elfar, Peter C Chimenti, Allison W McIntyre, Sean M Childs, Warren C Hammert, John C Elfar

Abstract

Background: Resolution of symptoms including pain, numbness, and tingling outside of the median nerve distribution has been shown to occur following carpal tunnel release. We hypothesized that a similar effect would be found after combined release of the ulnar nerve at the elbow with simultaneous release of the median nerve at the carpal tunnel.

Methods: 20 patients with combined cubital and carpal tunnel syndrome were prospectively enrolled. The upper extremity was divided into six zones and the location of pain, numbness, tingling, or strange sensations was recorded pre-operatively. Two-point discrimination, Semmes-Weinstein monofilament testing, and validated questionnaires were collected pre-operatively and at six-week follow-up.

Results: Probability of resolution was greater in the median nerve distribution than the ulnar nerve for numbness (71% vs. 43%), tingling (86% vs. 75%). Seventy percent of the cohort reported at least one extra-anatomic symptom pre-operatively, and greater than 80% of these resolved at early follow-up. There was a decrease in pain as measured by validated questionnaires.

Conclusion: This study documents resolution of symptoms in both extra-ulnar and extra-median distributions after combined cubital and carpal tunnel release. Pre-operative patient counseling may therefore include the likelihood of symptomatic improvement in a non-expected nerve distribution after this procedure, assuming no other concomitant pathology which may cause persistent symptoms. Future studies could be directed at correlating pre-operative disease severity with probability of symptom resolution using a larger population.

Keywords: Carpal Tunnel Syndrome; Cubital Tunnel Syndrome; Extra-Median; Extra-Ulnar; Median Nerve; Ulnar Nerve; Ulnar Neuropathy.

Figures

Fig. (1)
Fig. (1)
Division of the upper extremity into six different zones. Note the exclusion of the ring finger due to dual innervation.
Fig. (1)
Fig. (1)
Division of the upper extremity into six different zones. Note the exclusion of the ring finger due to dual innervation.

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Source: PubMed

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