Dorsal Interosseous Muscle Weakness from Mid-Palm Ganglion Cyst

Articles in Press

Document Type : CASE REPORT

Authors

1 Rothman Orthopaedic Institute, Sydney Kimmel Medical College, Thomas Jefferson University Hospital, Philadelphia, PA

2 Rothman Orthopaedic Institute, Sydney Kimmel Medical College, Thomas Jefferson University Hospital, Philadelphia, PA, USA

10.22038/abjs.2024.80728.3684

Abstract

ABSTRACT

Ulnar nerve compression is commonly seen at the elbow at the cubital tunnel and the wrist at Guyon canal but is rarely seen in the hand. This case report describes an 18-year-old male presenting with seven months of atraumatic hand weakness and atrophy associated with heavy weightlifting. Exam demonstrated isolated interosseous muscle atrophy mostly sparing the abductor digiti minimi with intact sensation and negative nerve compression tests including Tinel at carpal and ulnar tunnels, Froment sign, Wartenberg test, cross finger test, and Spurling test. Electromyography and nerve conduciton studies demonstrated prolonged distal latency, low amplitude potential, and large amplitude fibrillations with severely reduced motor unit firing in first dorsal interosseous muscle consistent with ulnar nerve deep motor branch compromise. Magnetic resonance imaging revealed a ganglion cyst between the third metacarpal shaft and flexor profundus tendon. Given the progressive symptoms, ganglion cyst excision and ulnar motor nerve branch neurolysis were performed.

Keywords

Main Subjects

The Archives of Bone and Joint Surgery

Articles in Press, Accepted Manuscript
Available Online from 08 September 2024

Files

History

  • Receive Date: 24 June 2024
  • Revise Date: 05 August 2024
  • Accept Date: 05 August 2024

Share

How to cite

Statistics