Asymptomatic Osteonecrosis of the Trochlea in an Adolescent: A Case Report
Introduction Osteonecrosis, also known as avascular necrosis, aseptic necrosis, or ischemic necrosis, results from a temporary or permanent halt in blood flow to a portion of bone. This lack of blood supply can eventually cause the affected bone to collapse. Osteonecrosis around the elbow is not frequently observed…
2025 1,396 reads 1 citation
Case Reports
Asymptomatic Osteonecrosis of the Trochlea in an Adolescent: A Case Report
IntroductionOsteonecrosis, also known as avascular necrosis, aseptic necrosis, or ischemic necrosis, results from a temporary or permanent halt in blood flow to a portion of bone. This lack of blood supply can eventually cause the affected bone to collapse. Osteonecrosis around the elbow is not frequently observed. However, its occurrence in the trochlea known as Hegemann's disease is even rarer. Incidence rates of trochlear osteonecrosis have been reported to vary from 0.27% to less than 0.001% across different studies.
Case presentationA 14-year-old male presented with severe right shoulder pain and swelling, along with mild right lateral-sided elbow pain due to a fall to the ground. The radiograph of the right shoulder revealed a proximal humeral metaphyseal greenstick fracture. Additionally, the radiograph of the right elbow incidentally revealed osteonecrosis of the distal humeral trochlea. The affected shoulder was immobilized and Conservative management was selected for treating the trochlear osteonecrosis.
ConclusionTrochlear avascular necrosis is a rare condition that might cause mild discomfort or even be asymptomatic, potentially being diagnosed incidentally through radiographs. Typically, it can be managed with conservative treatment methods.
Keywords Osteonecrosis Avascular necrosis Aseptic necrosis Ischemic necrosis Trochlea All subjects
Barw Medical Journal. 2025;3(2)