Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature

Distal humeral epiphyseal separation (DHES) is rare and sometimes difficult to diagnose by radiography. This report presents a rare case of an 8-year-old male baseball player with epiphyseal separation of the trochlea caused by a stress-throwing injury. The patient sustained an elbow injury after th...

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Main Authors: Yusuke Hattori, Yohei Kawaguchi, Yuji Joyo, Sanshiro Yasuma, Hiroo Shiraga, Hideki Okamoto, Hideki Murakami, Yuko Waguri-Nagaya
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Trauma Case Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352644025000640
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author Yusuke Hattori
Yohei Kawaguchi
Yuji Joyo
Sanshiro Yasuma
Hiroo Shiraga
Hideki Okamoto
Hideki Murakami
Yuko Waguri-Nagaya
author_facet Yusuke Hattori
Yohei Kawaguchi
Yuji Joyo
Sanshiro Yasuma
Hiroo Shiraga
Hideki Okamoto
Hideki Murakami
Yuko Waguri-Nagaya
author_sort Yusuke Hattori
collection DOAJ
description Distal humeral epiphyseal separation (DHES) is rare and sometimes difficult to diagnose by radiography. This report presents a rare case of an 8-year-old male baseball player with epiphyseal separation of the trochlea caused by a stress-throwing injury. The patient sustained an elbow injury after throwing a ball. Ultrasound and magnetic resonance imaging confirmed epiphyseal separation of the trochlea and avulsion fracture of the capitellum. Open surgery was performed using 1.5 mm diameter K-wires. After 5 weeks of immobilization, an active range of motion was allowed. Bone union was achieved 4 months after surgery. The patient returned to baseball without pain. Open surgery may be a suitable treatment option for DHES as children grow.
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issn 2352-6440
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publishDate 2025-08-01
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series Trauma Case Reports
spelling doaj-art-4e86e09114284bbe8f3d7d172a6110922025-08-20T03:38:59ZengElsevierTrauma Case Reports2352-64402025-08-015810118710.1016/j.tcr.2025.101187Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literatureYusuke Hattori0Yohei Kawaguchi1Yuji Joyo2Sanshiro Yasuma3Hiroo Shiraga4Hideki Okamoto5Hideki Murakami6Yuko Waguri-Nagaya7Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, JapanDepartment of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, JapanDepartment of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, Japan; Corresponding author at: Department of Orthopedic Surgery, Nagoya City University East Medical Center, 1 Wakamizu, Chikusa-ku, Nagoya, Aichi 464-8547, Japan.Department of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, JapanDepartment of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, JapanDepartment of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, JapanDepartment of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, JapanDepartment of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, JapanDistal humeral epiphyseal separation (DHES) is rare and sometimes difficult to diagnose by radiography. This report presents a rare case of an 8-year-old male baseball player with epiphyseal separation of the trochlea caused by a stress-throwing injury. The patient sustained an elbow injury after throwing a ball. Ultrasound and magnetic resonance imaging confirmed epiphyseal separation of the trochlea and avulsion fracture of the capitellum. Open surgery was performed using 1.5 mm diameter K-wires. After 5 weeks of immobilization, an active range of motion was allowed. Bone union was achieved 4 months after surgery. The patient returned to baseball without pain. Open surgery may be a suitable treatment option for DHES as children grow.http://www.sciencedirect.com/science/article/pii/S2352644025000640Distal humeral epiphyseal separationEpiphyseal separation of trochleaStress-throwing injuryOpen surgery
spellingShingle Yusuke Hattori
Yohei Kawaguchi
Yuji Joyo
Sanshiro Yasuma
Hiroo Shiraga
Hideki Okamoto
Hideki Murakami
Yuko Waguri-Nagaya
Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature
Trauma Case Reports
Distal humeral epiphyseal separation
Epiphyseal separation of trochlea
Stress-throwing injury
Open surgery
title Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature
title_full Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature
title_fullStr Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature
title_full_unstemmed Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature
title_short Epiphyseal separation of the trochlea due to stress-throwing injury in a pediatric baseball player: A case report and review of the literature
title_sort epiphyseal separation of the trochlea due to stress throwing injury in a pediatric baseball player a case report and review of the literature
topic Distal humeral epiphyseal separation
Epiphyseal separation of trochlea
Stress-throwing injury
Open surgery
url http://www.sciencedirect.com/science/article/pii/S2352644025000640
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