Development of Parsonage-Turner Syndrome After Interscalene Brachial Plexus Block Including 10-Year Follow-up: A Case Report
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Updated: Jun 30, 2026

Transaxillary First Rib Resection for Treatment of the Thoracic Outlet Syndrome
Published on: September 13, 2020
Nata Parnes1, John C Dunn2, Jeff Perrine1
1Department of Orthopaedic Surgery and Rehabilitation, Carthage Area Hospital, Carthage, New York.
Case:
A 22-year-old female patient demonstrated physical examination findings of Parsonage-Turner syndrome (PTS) 5 days after left shoulder arthroscopic surgery with interscalene brachial plexus block. The diagnosis was confirmed with electrodiagnostic testing 2 weeks after surgery. Symptoms resolved spontaneously within 2 years with full return-to-preinjury sport and job activity. These outcomes were maintained at the 10-year follow-up.
Conclusions:
PTS should be considered in the differential diagnoses for any postsurgical neurological variations after upper extremity surgery under regional anesthesia.

