The study supports the concept of dynamic spinal stenosis. In addition to static anatomic changes, careful dynamic studies may be required to evaluate better the central canal and the foramen.
There is an effect of age on the inflammatory response and nerve root injury caused by the herniated disc. The apparent neuroprotective mechanism in the young animal, and the apparent inflammatory and resorption changes of the nucleus pulposus fragment in the older animal are quite intriguing.
Posterior distraction using pedicle screws increased foraminal dimensions. The ideal amount of distraction on the rod, or the minimal amount of distraction necessary for improving foraminal dimensions, may be 6 mm using pedicle screw instrumentation.
A case of abdominal aortic aneurysm infected by Salmonella dublin is presented. Computed tomography (CT) revealed an abdominal aortic rupture associated with a psoas abscess. An axillo-femoral bypass was performed. The aneurysm and the psoas abscess were resected.
A rare case of osteomyelitis of the tibia caused by Mycobacterium fortuitum which developed after closed intramedullary Küntscher nail fixation is reported. After extraction of the nail, combination therapy with antituberculous drugs, ofloxacin, and interleukin 2 was undertaken and bony union was achieved. Since a bone cyst formed during union, curettage and conventional cancellous bone grafting were performed. The patient is now pain-free even with prolonged weight-bearing. The success of treatment in this case is in contrast to other reports of the disease.
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