Heel pain caused by os subcalcis: A case report

The accessory bones are common bone variations around the feet and ankles, which usually originate from nonunion of the secondary ossification center adjacent to the main bone mass, and most of them remain asymptomatic. Os subcalcis is an accessory bone at the plantar aspect of the calcaneus, which...

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Bibliographic Details
Published inWorld journal of clinical cases Vol. 10; no. 16; pp. 5373 - 5379
Main Authors Saijilafu, Li, Suo-Yuan, Yu, Xiao, Li, Zhi-Qiang, Yang, Guang, Lv, Jing-Huan, Chen, Guang-Xiang, Xu, Ren-Jie
Format Journal Article
LanguageEnglish
Published United States Baishideng Publishing Group Inc 06.06.2022
Subjects
Case Report
Case report
Accessory ossicle
Heel pain
Os subcalcis
Calcaneus
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Summary:The accessory bones are common bone variations around the feet and ankles, which usually originate from nonunion of the secondary ossification center adjacent to the main bone mass, and most of them remain asymptomatic. Os subcalcis is an accessory bone at the plantar aspect of the calcaneus, which is located just posterior to the insertion of the plantar fascia. Focal bone formation at the calcaneal plantar pole with heel pain has rarely been reported. A 55-year-old man presented to our clinic with left plantar heel pain and a progressive swelling for 8 years. X-ray, computer tomography and magnetic resonance imaging showed a large os subcalcison the plantar side of the calcaneus, located at the insertion of the plantar fascia. He underwent surgical excision of the lesion. Microscopically the bony trabeculae were intermingled with fat and covered with cartilage. This is a rare case with accessory os subcalcis leading to heel pain. It highlights the awareness of os subcalcis and helps avoid future misdiagnosis of heel pain.
Bibliography:Author contributions: Saijilafu and Li SY contributed equally to this work. Saijilafu and Li SY conducted all integrated data, edited the figures and wrote the manuscript; Yu X and Li ZQ critically reviewed the manuscript; Yang G and Lv JH performed the pathological examination; Chen GX and Xu RJ supervised the study and provided advice; Chen GX and Xu RJ contributed equally to this work; All authors read and approved the final manuscript.
Supported by The Gusu Talents Project, No. GSWS2020069.
Corresponding author: Ren-Jie Xu, MD, Chief Doctor, Department of Orthopedics, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, No. 26 Daoqian street, Suzhou 215002, Jiangsu Province, China. fredxurj@sina.com
ISSN:2307-8960
2307-8960
DOI:10.12998/wjcc.v10.i16.5373