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STUDY DESIGN An in vivo serial magnetic resonance imaging study of diffusion characteristics in human lumbar discs over 24 hours in healthy volunteers and patients with low back pain. OBJECTIVES To document the temporal pattern of diffusion in normal human lumbar discs and to study the influence of the vascularity of bone and the status of endplate on(More)
The case of eighty-one patients who had tuberculosis of the spine that was treated by debridement and anterior arthrodesis were reviewed eight years or more postoperatively. We studied the progression of the kyphosis and evaluated the function and fate of the bone grafts that were used. At eight years, the results with respect to the progression of the(More)
The cases of ninety patients who had tuberculous lesions in the thoracic and thoracolumbar spine were studied. A comparison of the angles of the gibbus deformity at onset and six years later showed statistically significant differences between the patients who underwent treatment by radical surgery and those who underwent treatment by one of two(More)
STUDY DESIGN Randomized clinical trial (level I evidence). OBJECTIVE To compare the accuracy of non-navigation and Iso-C based navigation in pedicle screw fixation in thoracic spine deformities. SUMMARY OF BACKGROUND DATA Thoracic pedicle screw insertion for spinal deformity correction can be associated with increased pedicle breaches. Iso-C based(More)
  • S Rajasekaran
  • 2001
The progression of post-tubercular kyphosis in 61 children who received ambulatory chemotherapy was studied prospectively. The angles of deformity and kyphosis were measured for each patient at diagnosis, 3, 6, 9, 12 and 18 months later and every year thereafter for 15 years. During the course of the disease signs of instability appeared on the radiographs(More)
We prospectively followed 61 children under 15 years of age at the time of diagnosis to identify the risk factors for deformity progression. The children had 63 lesions and a minimum of 15 years followup. All exhibited an increase in deformity during the active disease phase, but 26 of 63 (41%) continued to progress during the quiescent phase until the(More)
Spinal tuberculosis is the most common cause for a kyphotic deformity in patients in many parts of the world. There is an average increase of 15 degrees deformity in all patients who are treated conservatively and 3% to 5% of patients may end up with a deformity that is greater than 60 degrees. The progress of deformity occurs in two distinct phases: Phase(More)
Childhood spinal tuberculosis, especially when associated with severe vertebral destruction of more than two vertebral bodies can end up in severe deformity. These children show progressive deformity throughout the period of growth and can develop severe kyphosis of >100°. Such kyphosis is severely disabling with significant risk of neurological deficit and(More)
BACKGROUND The association of intraspinal neural anomalies with scoliosis is known for more than six decades. However, there are no studies documenting the incidence of association of intraspinal anomalies in scoliotic patients in the Indian population. The guide lines to obtain an magnetic resonance imaging (MRI) scan to rule out neuro-axial abnormalities(More)