[Post-traumatic paraosteoarthropathy of the hip. Analysis with x-ray computed tomography and 3-dimensional...

Two cases of paraosteoarthropathy developed soon after hip trauma and without associated spinal disorders are described. CT perfectly discriminates ectopic bone formation from osseous fragments and calcified hematoma. These lesions display different signs and have different locations, which allows an easy differentiation. The aetiology of these traumatic osteomas (hip trauma associated with surgical repair in one case coma in the other) is compared to literature. The effectiveness of CT with 3D reconstruction is emphasized in paraosteoarthropathy and hip trauma screening.