{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T15:16:15Z","timestamp":1778685375412,"version":"3.51.4"},"reference-count":0,"publisher":"Indian Orthopaedic Research Group","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Jocr"],"published-print":{"date-parts":[[2026]]},"abstract":"<jats:p>Introduction: Ganglion cysts of the tibialis anterior tendon [2.1] (ATT) are exceedingly rare. We report a case of a giant ATT ganglion cyst associated with adult-acquired flatfoot deformity and underlying degenerative tendinopathy and describe a systematic multimodal surgical technique for its management.\n\nCase Report: A 55-year-old male construction worker presented with a 4-month history of a progressively enlarging left ankle swelling that prevented him from wearing protective footwear. Magnetic resonance imaging (MRI) demonstrated a lobulated cyst measuring 4.4 \u00d7 3.9 \u00d7 11.7 cm with internal septations and extensive underlying ATT degenerative change. Surgical management comprised an anterior elliptical incision, cyst decompression, tendon debridement, tubularization with Vicryl 4-0 sutures, platelet-rich plasma injection, and sheath marsupialization. Approximately 4 weeks postoperatively, the patient developed infective tenosynovitis, confirmed on repeat MRI, with a subcentimeter susceptibility focus raising suspicion for a retained foreign body.\n\nConclusion: Giant ATT ganglion cysts may harbor significant underlying degenerative tendinopathy requiring active surgical management beyond simple excision. A systematic approach combining cyst excision, debridement, tubularization, and biologic augmentation is described. Surgeons should maintain a low threshold for repeat MRI when post-operative infective tenosynovitis is suspected following ATT surgery.\n\nKeywords: Tibialis anterior tendon, ganglion cyst, tenosynovitis, adult-acquired flatfoot deformity, platelet-rich plasma, tubularization.<\/jats:p>","DOI":"10.13107\/jocr.2026.v16.i05.7232","type":"journal-article","created":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T14:38:26Z","timestamp":1778683106000},"page":"136-140","source":"Crossref","is-referenced-by-count":0,"title":["Giant Ganglion Cyst of the Tibialis Anterior Tendon Presenting with Adult-Acquired Flatfoot Deformity: A Case Report"],"prefix":"10.13107","volume":"16","author":[{"given":"Suraj","family":"Sajeev","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Sengkang General Hospital, Sengkang, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amit","family":"Bhardwaj","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Sengkang General Hospital, Sengkang, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"5271","published-online":{"date-parts":[[2026]]},"container-title":["Journal of Orthopaedic Case Reports"],"original-title":[],"deposited":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T14:38:27Z","timestamp":1778683107000},"score":1,"resource":{"primary":{"URL":"https:\/\/jocr.co.in\/wp\/2026\/05\/giant-ganglion-cyst-of-the-tibialis-anterior-tendon-presenting-with-adult-acquired-flatfoot-deformity-a-case-report\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":0,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2026]]},"published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.13107\/jocr.2026.v16.i05.7232","relation":{},"ISSN":["2321-3817"],"issn-type":[{"value":"2321-3817","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026]]}}}