{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T14:16:33Z","timestamp":1776435393635,"version":"3.51.2"},"reference-count":46,"publisher":"World Scientific Pub Co Pte Ltd","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Hand Surg Asian-Pac Vol"],"published-print":{"date-parts":[[2017,6]]},"abstract":"<jats:p>Background: To document the course of the median nerve in the distal forearm in palmaris longus (PL) deficient forearms and elucidate features that help distinguish it from the PL.<\/jats:p><jats:p>Methods: In the cadaveric study, 56 cadaveric forearms were dissected and the location and course of the median nerve were documented. In the clinical study, 20 healthy subjects with absent PL were examined with provocative tests to elucidate the PL (Schaeffer\u2019s test and Thompson\u2019s test), and modified Durkan\u2019s and Phalen\u2019s tests. In the imaging study, one subject with a clearly visible and palpable median nerve was further evaluated with MRI with a superficial fiducial marker.<\/jats:p><jats:p>Results: Cadaveric dissection revealed that the median nerve was deep to the antebrachial fascia and superficial to the FDS tendons in the distal forearm. In 9 specimens without a PL, the median nerve was the most superficial structure deep and lay draped over the FDS tendons. In the clinical study, PL absence was bilateral in 4 subjects and unilateral in 16. The nerve was visible and palpable in 4 forearms and palpable but not visible in 20 forearms. In all 24 forearms, the nerve was palpable as a lax, mobile, cord-like structure that could be rolled over the taut FDS tendons. Tinel\u2019s and Durkan\u2019s signs were positive in 11 subjects. In the imaging study, MRI confirmed that the palpable structure was the median nerve.<\/jats:p><jats:p>Conclusions: Unlike the PL, the nerve is non-contractile and remains flaccid on provocative testing. It is usually palpable and may also be visible in thin forearms. Careful scrutiny may reveal it to be distinct from, and draped over underlying FDS tendons. These findings may help avoid inadvertent median nerve harvest in place of a PL tendon graft.<\/jats:p>","DOI":"10.1142\/s0218810417500198","type":"journal-article","created":{"date-parts":[[2017,5,16]],"date-time":"2017-05-16T01:33:34Z","timestamp":1494898414000},"page":"160-166","source":"Crossref","is-referenced-by-count":7,"title":["That Tendon is the Median Nerve: Perils of a Palmaris Longus Deficient Wrist"],"prefix":"10.1142","volume":"22","author":[{"given":"Colin Yi-Loong","family":"Woon","sequence":"first","affiliation":[{"name":"University of Illinois at Chicago, Chicago"},{"name":"Advocate Children\u2019s Hospital, Oak Lawn, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ramadevi","family":"Gourineni","sequence":"additional","affiliation":[{"name":"Northwestern University Feinberg School of Medicine, Chicago, Illinois, 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