JBJS | Acute Osteochondral Shear Fracture of the Capitellum in a Twelve-Year-Old Patient: A Case Report

The Journal of Bone & Joint Surgery, Volume 90, Issue 3

Case Reports | March 01, 2008

Acute Osteochondral Shear Fracture of the Capitellum in a Twelve-Year-Old Patient: A Case Report

Jeffrey F. Sodl, MD¹; Eric T. Ricchetti, MD¹; G. Russell Huffman, MD, MPH¹

¹ Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Penn Sports Medicine Center, 235 South 33rd Street, Philadelphia, PA 19104. E-mail address for G.R. Huffman: russell.huffman@uphs.upenn.edu

The Journal of Bone & Joint Surgery. 2008; 90:629-633 doi:10.2106/JBJS.G.00017

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The exact prevalence of radiocapitellar joint injuries in adolescents is unknown. The most common elbow disorders in young athletes include overuse injuries, such as osteochondritis dissecans and Panner disease. Fractures of the capitellum and radial neck can also occur in this age group as a result of direct trauma. Marion and Faysse reported only one capitellar fracture in a series of 2,000 elbow fractures in children¹. Two fracture patterns of the capitellum have traditionally been described. The first type, a coronal shear fracture often referred to as the Hahn-Steinthal fracture, usually contains a large portion of cancellous bone from the lateral humeral condyle and may include the lateral crista of the trochlea as well^2,3. The second type, a pure articular fracture called the Kocher-Lorenz fracture, has little or no subchondral bone attached to the fragment^4,5 and is rarely seen in children⁶.

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capitellum fractures ; elbow region ; fracture ; capitellum of humerus

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These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.

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