{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T14:46:52Z","timestamp":1788274012962,"version":"build-2803163510"},"reference-count":34,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2026,1,4]],"date-time":"2026-01-04T00:00:00Z","timestamp":1767484800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Background and Clinical Significance: Wartenberg\u2019s syndrome (cheiralgia paresthetica) is classically described as a pure sensory neuropathy of the superficial branch of the radial nerve (SBRN). However, in rare circumstances, dynamic mechanical irritation around the radial styloid may produce an atypical clinical phenotype with concurrent motor impairment, broadening the clinical significance of recognizing motion-related compression mechanisms. Case Presentation: A 35-year-old woman presented with persistent dorsoradial wrist pain and numbness, accompanied by progressive weakness of thumb extension, five years after a conservatively treated nondisplaced scaphoid fracture. Neurological examination demonstrated sensory loss in the SBRN distribution and Medical Research Council (MRC) grade 3\/5 strength of the extensor pollicis longus (EPL). Nerve conduction studies revealed a markedly prolonged EPL motor latency (4.5 ms; normal \u2264 2.5 ms) with preserved sensory conduction. High-resolution ultrasound showed focal enlargement of the SBRN (cross-sectional area 0.13 cm2) and, critically, dynamic snapping of the nerve over the radial styloid that reproduced the patient\u2019s symptoms. The patient underwent ten weekly sessions of ultrasound-guided hydrodissection with 5% dextrose. After treatment, the pain Visual Analog Scale improved from 8\/10 to 0\/10 and EPL strength recovered to MRC 5\/5. Follow-up nerve conduction studies demonstrated normalization of EPL motor latency (2.1 ms), and repeat ultrasound confirmed resolution of SBRN enlargement and snapping. Conclusions: This case expands the phenotype of Wartenberg\u2019s syndrome to include mixed sensory\u2013motor involvement associated with dynamic SBRN snapping at the radial styloid. Dynamic ultrasound was pivotal for identifying the motion-dependent mechanism, and ultrasound-guided 5% dextrose hydrodissection achieved complete sensory and motor recovery as a minimally invasive and effective treatment option.<\/jats:p>","DOI":"10.3390\/diagnostics16010156","type":"journal-article","created":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T08:40:53Z","timestamp":1767602453000},"page":"156","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Ultrasound-Guided Dextrose Hydrodissection for Mixed Sensory\u2013Motor Wartenberg\u2019s Syndrome Following a Healed Scaphoid Fracture: A Case Report"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8746-3718","authenticated-orcid":false,"given":"Yonghyun","family":"Yoon","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Gangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul 07441, Republic of Korea"},{"name":"Incheon Terminal Orthopedic Surgery Clinic, Inha-ro 489beon-gil, Namdong-gu, Incheon 21574, Republic of Korea"},{"name":"International Academy of Regenerative Medicine, Inha-ro 489beon-gil, Namdong-gu, Incheon 21574, Republic of Korea"},{"name":"Board of Clinical Research, the International Association of Musculoskeletal Medicine, Kowloon, Hong Kong"},{"name":"International Academy of Musculoskeletal Medicine, MSKUS, 1035 E. Vista Way #128, Vista, CA 92084, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1392-829X","authenticated-orcid":false,"given":"King Hei Stanley","family":"Lam","sequence":"additional","affiliation":[{"name":"Board of Clinical Research, the International Association of Musculoskeletal Medicine, Kowloon, Hong Kong"},{"name":"The Faculty of Medicine, The University of Hong Kong, Hong Kong"},{"name":"The Faculty of Medicine, The Chinese University of Hong Kong, New Territory, Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeimylo C. de","family":"Castro","sequence":"additional","affiliation":[{"name":"SMARTMD Center for Non-Surgical Pain Interventions, Makati 1205, Philippines"},{"name":"Research Department, Adventist University of the Philippines (A.U.P.), Puting Kahoy, Silang 4118, Philippines"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9141-9856","authenticated-orcid":false,"given":"Jihyo","family":"Hwang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Gangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul 07441, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaeyoung","family":"Lee","sequence":"additional","affiliation":[{"name":"Incheon Terminal Orthopedic Surgery Clinic, Inha-ro 489beon-gil, Namdong-gu, Incheon 21574, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-6722-0268","authenticated-orcid":false,"given":"Teinny","family":"Suryadi","sequence":"additional","affiliation":[{"name":"Board of Clinical Research, the International Association of Musculoskeletal Medicine, Kowloon, Hong Kong"},{"name":"Department of Physical Medicine and Rehabilitation, Hermina Podomoro Hospital, North Jakarta 14350, Indonesia"},{"name":"Department of Physical Medicine and Rehabilitation, Medistra Hospital, South Jakarta 12950, Indonesia"},{"name":"Physical Medicine and Rehabilitation, Synergy Clinic, West Jakarta 11510, Indonesia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5795-0988","authenticated-orcid":false,"given":"Anwar","family":"Suhaimi","sequence":"additional","affiliation":[{"name":"Board of Clinical Research, the International Association of Musculoskeletal Medicine, Kowloon, Hong Kong"},{"name":"Department of Rehabilitation Medicine, University Malaya, Kuala Lumpar 50603, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chun-Wei","family":"Kang","sequence":"additional","affiliation":[{"name":"Department of PM&R, Taipei Medical University Hospital, Taipei 110301, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaeik","family":"Choi","sequence":"additional","affiliation":[{"name":"International Academy of Regenerative Medicine, Inha-ro 489beon-gil, Namdong-gu, Incheon 21574, Republic of Korea"},{"name":"Dr. Choi\u2019s Rehab. Med. Daelim Building 303, Kojandong, Ansansi, Kyengido, Seoul 15476, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seungbeom","family":"Kim","sequence":"additional","affiliation":[{"name":"International Academy of Regenerative Medicine, Inha-ro 489beon-gil, Namdong-gu, Incheon 21574, Republic of Korea"},{"name":"Miso Pain Clinic, 1569, Bongyeong-ro, Yeongtong-gu, Suwon-si 16703, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1620\/tjem.193.251","article-title":"Entrapment of the Sensory Branch of the Radial Nerve (Wartenberg\u2019s Syndrome): An Unusual Cause","volume":"193","author":"Tosun","year":"2001","journal-title":"Tohoku J. Exp. 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