S. Rajasekaran

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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)
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)
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)
Degenerative disc disease (DDD) is still a poorly understood phenomenon because of the lack of availability of precise definition of healthy, ageing and degenerated discs. Decreased nutrition is the final common pathway for DDD and the status of the endplate (EP) plays a crucial role in controlling the extent of diffusion, which is the only source of(More)
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)
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)
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)
STUDY DESIGN A 15-year clinical follow-up of tuberculous lesions of the lumbosacral region. OBJECTIVES To verify the hypothesis that the lumbar lordosis and the specific biomechanics of the lumbosacral region influence and alter the healing pattern and progress of the disease when compared with their effects in other regions of the spine. SUMMARY OF(More)
Twenty-two consecutive major replantations carried out over a 5-year period were assessed with a minimum follow-up of 2 years. Only two patients suffered guillotine amputations. The remainders were either crush, or crush avulsion amputation. Replantation was successful in 20 cases. When analysed by Chen's criteria, there were three Grade I, nine Grade II,(More)