{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T18:21:36Z","timestamp":1787768496652,"version":"build-2784847793"},"reference-count":14,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","license":[{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec>\n                    <jats:title>Case:<\/jats:title>\n                    <jats:p>A 43-year-old woman presented with left foot numbness and progressive difficulty flexing the great toe. Examination revealed isolated flexor hallucis longus (FHL) weakness. Plain radiographs of the left knee showed no degenerative changes. MRI showed a multiloculated ganglion cyst in the left popliteal fossa with increased FHL signal intensity, suggestive of denervation edema. Cyst aspiration resulted in immediate FHL recovery, but the cyst recurred 3 months later, and complete recovery was achieved after surgical excision. At the 3-year follow-up, the patient remained symptom-free with full FHL strength (MMT 5\/5) and no cyst recurrence.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>An extraneural popliteal ganglion cyst can cause selective fascicular compression of the tibial nerve, resulting in isolated FHL weakness, with durable functional recovery achievable through surgical excision.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2106\/jbjs.cc.26.00246","type":"journal-article","created":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T18:00:24Z","timestamp":1787767224000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Isolated Flexor Hallucis Longus Weakness Caused by a Popliteal Ganglion Cyst Compressing the Tibial Nerve"],"prefix":"10.2106","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2171-0004","authenticated-orcid":false,"given":"Yohei","family":"Yanagisawa","sequence":"first","affiliation":[{"name":"Department of Emergency and Critical Care Medicine, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"},{"name":"Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6153-9451","authenticated-orcid":false,"given":"Yusuke","family":"Eda","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7282-5878","authenticated-orcid":false,"given":"Naoya","family":"Kikuchi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-3623-9304","authenticated-orcid":false,"given":"Tomoki","family":"Koide","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-0852-5685","authenticated-orcid":false,"given":"Shiho","family":"Kajita","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-5506-4906","authenticated-orcid":false,"given":"Chihana","family":"Takamori","sequence":"additional","affiliation":[{"name":"Department of Pathology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8887-1593","authenticated-orcid":false,"given":"Matsuoka","family":"Ryota","sequence":"additional","affiliation":[{"name":"Department of Pathology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7891-3024","authenticated-orcid":false,"given":"Yasuhiro","family":"Homma","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2026,7]]},"reference":[{"issue":"8","key":"bib1-20260826","doi-asserted-by":"crossref","first-page":"e678","DOI":"10.3928\/01477447-20140728-52","article-title":"Popliteal cysts: a current review","volume":"37","author":"Herman","year":"2014","journal-title":"Orthopedics."},{"issue":"2","key":"bib2-20260826","doi-asserted-by":"crossref","first-page":"330","DOI":"10.3171\/jns.2003.99.2.0330","article-title":"Peroneal intraneural ganglia: the importance of the articular branch. A unifying theory","volume":"99","author":"Spinner","year":"2003","journal-title":"J Neurosurg."},{"issue":"6","key":"bib3-20260826","doi-asserted-by":"crossref","first-page":"1821","DOI":"10.1016\/j.jvs.2011.07.079","article-title":"Compression syndromes of the popliteal neurovascular bundle due to baker cyst","volume":"54","author":"Sanchez","year":"2011","journal-title":"J Vasc Surg."},{"issue":"6","key":"bib4-20260826","doi-asserted-by":"crossref","first-page":"876","DOI":"10.3390\/medicina60060876","article-title":"Palsy of both the tibial nerve and common peroneal nerve caused by a ganglion cyst in the popliteal area","volume":"60","author":"Lee","year":"2024","journal-title":"Medicina (Kaunas)."},{"issue":"4","key":"bib5-20260826","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1007\/s00256-006-0213-2","article-title":"The clinico-anatomic explanation for tibial intraneural ganglion cysts arising from the superior tibiofibular joint","volume":"36","author":"Spinner","year":"2007","journal-title":"Skeletal Radiol."},{"issue":"6","key":"bib6-20260826","doi-asserted-by":"crossref","first-page":"1565","DOI":"10.1111\/ans.17345","article-title":"Unusual case of an intraneural ganglion cyst of the tibial nerve","volume":"92","author":"Wang","year":"2022","journal-title":"ANZ J Surg."},{"key":"bib7-20260826","doi-asserted-by":"crossref","first-page":"224","DOI":"10.25259\/SNI_75_2021","article-title":"Vascular entrapment neuropathy of the tibial nerve within the gastrocnemius muscle","volume":"12","author":"Page","year":"2021","journal-title":"Surg Neurol Int."},{"issue":"5","key":"bib8-20260826","doi-asserted-by":"crossref","first-page":"525","DOI":"10.1002\/mus.10454","article-title":"Peripheral nerve fascicles: anatomy and clinical relevance","volume":"28","author":"Stewart","year":"2003","journal-title":"Muscle Nerve."},{"issue":"3","key":"bib9-20260826","doi-asserted-by":"crossref","first-page":"617","DOI":"10.5603\/FM.a2019.0007","article-title":"Innervation of flexor hallucis longus muscle: an anatomical study for selective neurotomy","volume":"78","author":"Koch","year":"2019","journal-title":"Folia Morphol."},{"issue":"4","key":"bib10-20260826","doi-asserted-by":"crossref","first-page":"413","DOI":"10.1007\/s00276-024-03329-6","article-title":"Tibial nerve branching pattern and compatibility of branches for the deep fibular nerve","volume":"46","author":"Yilmaz","year":"2024","journal-title":"Surg Radiol Anat."},{"issue":"2","key":"bib11-20260826","doi-asserted-by":"crossref","first-page":"231","DOI":"10.5603\/FM.a2022.0042","article-title":"Variations in the branching pattern of tibial nerve in foot: a review of literature and relevant clinical anatomy","volume":"82","author":"Priya","year":"2023","journal-title":"Folia Morphol."},{"issue":"6","key":"bib12-20260826","doi-asserted-by":"crossref","first-page":"1077","DOI":"10.1227\/00006123-199412000-00010","article-title":"Magnetic resonance imaging signal changes in denervated muscles after peripheral nerve injury","volume":"35","author":"West","year":"1994","journal-title":"Neurosurgery."},{"issue":"1","key":"bib13-20260826","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1148\/radiology.187.1.8451416","article-title":"Denervated human skeletal muscle: MR imaging evaluation","volume":"187","author":"Fleckenstein","year":"1993","journal-title":"Radiology."},{"issue":"4","key":"bib14-20260826","first-page":"387","article-title":"Recurrence of ganglion cysts following Re-excision","volume":"9","author":"Graham","year":"2021","journal-title":"Arch Bone Joint Surg."}],"container-title":["JBJS Case Connector"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.26.00246","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T18:00:27Z","timestamp":1787767227000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.26.00246"}},"subtitle":["A Case Report"],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":14,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.2106\/jbjs.cc.26.00246","relation":{},"ISSN":["2160-3251"],"issn-type":[{"value":"2160-3251","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7]]}}}