Hoffmann’s sign is a simple test that can help in diagnosing cervical myelopathy and upper motor neurone disease as part of a thorough history and examination.
Check out the paper mentioned
Nemani VM, Kim HJ, Piyaskulkaew C, Nguyen JT, Riew KD. Correlation of cord signal change with physical examination findings in patients with cervical myelopathy. Spine (Phila Pa 1976). 2015 Jan 1;40(1):6-10. doi: 10.1097/BRS.0000000000000659. PMID: 25341986.
https://pubmed.ncbi.nlm.nih.gov/25341986/
Check out the Stat Pearls page.
Whitney E, Munakomi S. Hoffmann Sign. [Updated 2022 Oct 24]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK545156/
2 videos from Ortho Eval Pal with Paul Marquis on YouTube that show the sign.
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