Acute handlebar syndrome: Two extremes of a challenging diagnosis.

Surg Neurol Int

Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Rua Napoleão de Barros, 720, 6th floor, Sao Paulo, Brazil.

Published: October 2020

AI Article Synopsis

  • Ulnar nerve mononeuropathy can be hard to diagnose, particularly when caused by rare factors like repetitive trauma from cycling.
  • Two patients with handlebar syndrome (ulnar nerve palsy at Guyon's canal) experienced symptoms after cycling, one needing surgery and the other receiving conservative treatment.
  • Handlebar syndrome is linked to repetitive compression of the ulnar nerve due to cycling, and with cycling's growing popularity, avoiding such trauma is crucial, with surgery considered only if conservative methods fail.

Article Abstract

Background: Ulnar nerve mononeuropathy diagnosis can be challenging depending on where neural lesion is present. Repetitive trauma during cycling is a rare cause of ulnar neuropathy.

Case Description: We describe two patients who developed the handlebar syndrome, an ulnar nerve palsy at Guyon's canal after cycling. The first patient had the syndrome after a short-distance ride and she was treated surgically, while the second patient developed the classical syndrome after a long ride and received conservative treatment. Surgical treatment of the first patient led to functional recovery.

Conclusion: Handlebar syndrome is a neuropathy caused by extrinsic repetitive compression of ulnar nerve at wrist. Increasing incidence of this disease can be expected after increasing popularity of cycling sports. Avoid of repetitive trauma is the main management goal, with surgical treatment reserved for failure of conservative treatment.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7656046PMC
http://dx.doi.org/10.25259/SNI_606_2020DOI Listing

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