BACKGROUND AND PURPOSE The appearance of vacuum clefts (VCs) of the vertebral bodies has frequently been considered pathognomonic for avascular necrosis. Until recently, this was considered to be a rare finding that might indicate excessive motion at the fracture site. Our aim in this retrospective study was to determine the occurrence and location of these clefts in patients with osteoporotic ...

An intravertebral pneumatocyst is a relatively rare condition, and its natural course and etiology are unclear. We report a case of intravertebral pneumatocysts in the C5 vertebra that gradually enlarged during a 16-month period as documented by follow-up CT. In addition, direct communication was observed between the gas in the intervertebral disk and another pneumatocyst in the C6 vertebral bo...

There are various techniques available for percutaneous biopsy of suspected diskitis/osteomyelitis. Our technique has evolved as our experience with percutaneous vertebroplasty has grown. By using a transpedicular approach, we angle a bone biopsy needle in an exaggerated caudocranial trajectory to allow eventual access across the disk space above. This approach permits sampling of the disk spac...

End plates serve as the interface between rigid vertebral bodies and pliant intervertebral disks. Because the lumbar spine carries significant forces and disks don't have a dedicated blood supply, end plates must balance conflicting requirements of being strong to prevent vertebral fracture and porous to facilitate transport between disk cells and vertebral capillaries. Consequently, end plates...

Diskospondylitis is defined as concurrent intervertebral diskinfection and vertebral osteomyelitis of contiguous vertebrae.(29, 30, 35-38) In the dog, the infection has been attributed to Staphylococcus aureus, Brucella Canis, Nocardia-like organisms, Corynebacterium spp, Paecilo-myces varioti, and grass-seed foreign body penetration with secondary infection.(26,31,3538,40,44-52) Other organism...

The lumbosacral region of the spine is most susceptible to pathology in large breed dogs. common pathologies this segment include intervertebral disk discopathy, distortion vertebral vertebrae, narrowing canal and congenital defects spine. This area commonly affected by physical trauma or aging-related conditions leading a wide range symptoms, such as pain loss mobility.

Extruded lumbar intervertebral disks traditionally have been classified as posterior or central in location. A retrospective review of 250 MR imaging examinations of the lumbar spine that used mid- and high-field imagers revealed 145 positive studies, which included a significant number of extrusions extending anteriorly. With the lateral margin of the neural foramen/pedicle as the boundary, 29...

The present study examined the histopathological and magnetic resonance imaging (MRI) features of pyogenic, brucella and tuberculous spondylitis (PS, BS and TS, respectively). A total of 22 PS, 20 BS and 20 TS patients were included in the study. Histopathological examination was used to assess the lesion structure and composition, and the MRI observation identified the lesion location and sign...

Except in special circumstances, the vertebrae assume a relatively constant anatomic theme and consist of a vertebral body and a vertebral (neural) arch. The vertebral body serves as a pillar, supporting the head and trunk. The posterior margin of the bodies, along with the vertebral arches, forms the bony spinal canal, protecting the spinal cord. The neural arch is formed by paired pedicles an...