Cas rare de fracture des deux os de l’avant-bras chez un patient présentant une bifurcation de l'humérus et une déficience ulnaire: synostose huméro-radioulnaire

Humero-radioulnar synostosis is a rare deformity of the upper limb. The synostosis of the elbow is a malformation that may happen between any of the bones of this joint. The most common one is radioulnar synostosis. Humero-radioulnar synostosis has been very little reported in the literature. We report the case of a 32 years old man with a condition of phacomolia, consulting in the emergency room, for pain of the left upper limb after a light football trauma. The patient also had craniosynostosis of the lambdoid suture. Left-arm X-ray showed a bifurcating humerus, with ulnar deficiency, and non-displaced radial and ulnar fractures, successfully treated with a cast for 6 weeks. This study reports a rare and unusual case of Humero-radioulnar synostosis, in a patient with no family history of malformations.