Bone Sequestrum Undetected by Radiograph

This horse came in with a open complete comminuted fracture of the lateral splint bone in the right hind limb. A partial ostectomy was performed, removing the bone just above the fracture site. After surgery, discharge was noticed in several wound bandages. CT images show bone sequestrum fragment was found on the axial aspect of the splint bone. Once the fragment was removed the horse healed up nicely. The sequestrum found in CT images was not able to be seen in radiographs.

Featured: Dr. Diego De Gasperi, University of Wisconsin-Madison