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Journal of Trauma and Injury 2013;26(3):218-221.
Sleeve Fracture of the Superior Pole of Patella in an Adolescent
Moon Jib Yoo, Jae Sung Yoo, Jee Won Ryu
Department of Orthopedic Surgery, Dankook University College of Medicine, Cheonan, Korea. idbabe@naver.com
청소년기에서 발생한 슬개골 상단부 소매형 골절
유문집, 유재성, 류지원
단국대학교 의과대학 정형외과학교실
Received: 5 July 2013   • Revised: 30 July 2013   • Accepted: 26 August 2013
Abstract
A patella sleeve fracture is a type of avulsion fracture in which a small osseous fragment gets, along with a sleeve of periosteum and cartilage, is pulled off from the patella. The avulsed sleeve of cartilage and periosteum is not apparent on plain radiographs, which can result in a missed diagnosis or an underestimate of the extent of injury. An avulsion or sleeve fracture of the patella in a child can occur at the superior or the inferior pole of the patella. However, most reported cases of sleeve fractures involve the inferior patellar pole, with fractures involving the superior patellar pole being very rare. The authors report a case of a sleeve fracture of the superior pole of the patella in an adolescent; the fracture was diagnosed with magnetic resonance imaging (MRI) and was treated with surgery after early diagnosis. The course was uneventful, and the outcome was excellent.
Key Words: Patella; Superior pole of patella; Sleeve fracture; Avulsion fracture
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