Giant calcific insertional Achilles tendinopathy with Haglund’s deformity following childhood tendon lengthening: a rare case report

This case highlights a rare presentation of delayed, extensive CIAT in a young adult likely related to previous surgical trauma and poor intraoperative hemostasis. It underscores the importance of recognizing the long-term sequelae of childhood tendon surgery and demonstrates the efficacy of a combined surgical strategy incorporating calcific debridement, Haglund resection, and FHL transfer for restoring function.