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Treatment of a heterotrophic ossification fracture at the proximal Achilles tendon: a case report
Arthrosc Orthop Sports Med 2023;10:92-94
Published online November 1, 2023;
© 2023 Korean Arthroscopy Society and Korean Orthopedic Society for Sports Medicine.

Pai Xu1, Zhao Wang1, Seung-Ho Lee2, Jun-Sheng Zhang1, Chan Kang2

1Department of Orthopedic Surgery, Chungnam National University School of Medicine, 2Department of Orthopedic Surgery, Chungnam National University Hospital, Daejeon, Korea
Correspondence to: Chan Kang,
Department of Orthopedic Surgery, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Korea. Tel: +82-42-338-2480, Fax: +82-42-338-2482, E-mail:
Received March 19, 2023; Revised September 25, 2023; Accepted October 6, 2023.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
A heterotrophic ossification fracture ~80 mm in size was found in the proximal Achilles tendon area on a plain radiograph in a 71-year-old female patient who visited the hospital due to right calf pain after jogging. On surgical findings, the entire Achilles tendon substance was changed into heterotrophic ossification in the calcaneus ossification center, and a total defect was induced after excision. Flexor hallucis longus transfer surgery, commonly used among various Achilles tendon reconstruction methods, was performed, and 14 months after the operation, satisfactory results were obtained without hindrance to daily life. Although there have been several reports of Achilles tendon ossification, no domestic report has yet been confirmed for a case in which acute fracture was prominently identified and treated when the entire proximal Achilles tendon substance was ossified.
Keywords : Achilles tendon; Fracture; Heterotrophic ossification; Flexor hallucis longus transfer
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November 2023, 10 (2)