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Osteochondroma formation after avulsion fracture of anterior inferior iliac spine: A case report

Authors
  • Cho, Hyung Gyu
  • Kwon, Hoi Young
  • Lee, Yeong Chang
  • Lee, Yong Chan
  • Kweon, Suc Hyun
Type
Published Article
Journal
World Journal of Orthopedics
Publisher
Baishideng Publishing Group Co (World Journal of Orthopedics)
Publication Date
Aug 18, 2020
Volume
11
Issue
8
Pages
357–363
Identifiers
DOI: 10.5312/wjo.v11.i8.357
PMID: 32904027
PMCID: PMC7448205
Source
PubMed Central
Keywords
License
Green

Abstract

BACKGROUND Hip avulsion fractures occur mostly during adolescence when actions such as kicking or running cause forceful contraction of attached muscle. Osteochondroma is benign tumor that mostly occurs at the metaphysis of a long bone, being usually asymptomatic. CASE SUMMARY A 15-year-old patient experienced feeling and sound of a break while kicking a ball in soccer game three years prior to his visit to our hospital. A simple X-ray revealed an avulsion fracture of the apophysis of the anterior inferior iliac spine (AIIS). Later in the follow-up X-ray, a palpable mass was found and demonstrated by magnetic resonance imaging to be a pedunculated osteochondroma in the superolateral aspect of the AIIS. For surgical treatment, we performed osteotomy for surgical excision and excisional biopsy. A mass with smooth surface and an unclear superolateral AIIS border was found intraoperatively. Pathologic exam showed definite diagnosis of osteochondroma. Postoperatively, discomfort during hip flexion was improved, and the hip joint range of motion during walking was recovered at the last follow-up, which was three weeks after the surgery. CONCLUSION This is a rare case to demonstrate relevant previous trauma history prior to the formation of osteochondroma.

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