Epiphysealis hemimelica dysplasia

Epiphysealis Hemimelica Dysplasia (EHD), also known as Trevor's Disease, is a rare orthopedic condition characterized by the overgrowth of the cartilage on the epiphyses of long bones. This disorder is typically unilateral, affecting only one limb, and is more common in males than females. The exact cause of EHD is unknown, but it is believed to be a non-hereditary, developmental disorder.

Symptoms and Diagnosis

The primary symptom of EHD is an asymmetrical overgrowth of one or more epiphyses, leading to pain, limited range of motion, and deformity of the affected limb. The condition is usually diagnosed in childhood or early adolescence, as the abnormal growth becomes more apparent with age.

Diagnosis of EHD is primarily based on clinical examination and imaging studies. Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) scans are particularly useful in identifying the extent of cartilage overgrowth and its effect on adjacent structures.

Treatment

Treatment of EHD focuses on managing symptoms and preventing further deformity. In mild cases, non-surgical interventions such as physical therapy and pain management may be sufficient. However, surgical intervention is often required to remove the overgrown cartilage, correct deformities, and restore function to the affected limb. The specific type of surgery depends on the severity and location of the overgrowth.

Prognosis

The prognosis for individuals with EHD varies depending on the extent of the disease and the effectiveness of treatment. Early diagnosis and intervention can significantly improve outcomes, although some individuals may experience ongoing pain and mobility issues.

Epidemiology

EHD is a rare condition, with a limited number of cases reported in the medical literature. It affects males more frequently than females, and there is no known racial or ethnic predisposition.

See Also

• Orthopedic surgery
• Pediatric orthopedics
• Bone dysplasia