The pelvi-femoral incomplete bone bridge in a patient with mild haemophilia

A 15-year-old boy with mild haemophilia who regularly participates in conta ct sports presented with right hip pain radiating to the groin and buttock areas and difficulty in walking. Conventional radiography disclosed a heter otopic new bone formation in the adductor region. The reformatted and three -dimensional reconstructed images of computerized tomography (CT) scans det ailed an incomplete pelvi-femoral bone bridge formation in the quadratus fe moris muscle, which was located very close to the sciatic nerve but did not cause any clinical symptoms. Postural exercises and clinical survey were s elected as the primary treatment.