Kunimasa Inada

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STUDY DESIGN Case-control study. OBJECTIVE To assess the long-term prevalence of vertebral fractures after lumbar spinal fusion with instrumentation. SUMMARY OF BACKGROUND DATA The incidence of the adjacent and the nonadjacent, remote level subsequent vertebral fractures after lumbar spinal fusion is not well described in the literature. METHODS The(More)
STUDY DESIGN Prospective consecutive series. OBJECTIVE To evaluate the post-traumatic disc degeneration and range of motion 10 years after short-segment fixation without fusion for thoracolumbar burst fractures with neurological deficit. SUMMARY OF BACKGROUND DATA Early clinical results of short-segment fixation without fusion for thoracolumbar burst(More)
PURPOSE To introduce a new simple technique using suture anchors and ceramic spacers to stabilize the elevated laminae in open-door cervical laminoplasty. Although ceramic spacers were placed in the opened laminae and fixed with nylon threads in this series, it was occasionally difficult to fix the nylon threads to the lateral mass. MATERIALS AND METHODS(More)
STUDY DESIGN A prospectively study. OBJECTIVE Our objective was to clarify the safety and efficacy of asymmetrical pedicle subtraction osteotomy (PSO) in the treatment of severe adult lumbar deformities prospectively. SUMMARY OF BACKGROUND DATA Vertebral wedge osteotomy provides good correction of kyphosis but has rarely been applied to degenerative(More)
STUDY DESIGN Prospective consecutive series. OBJECTIVE The objective of this 10-year follow-up study was to assess the efficacy of concave PLIF for lumbosacral hemicurve in treating patients with adult scoliosis. SUMMARY OF BACKGROUND DATA Long-term results and clinical significance of PLIF for allowing L3 vertebra to become horizontal in adult(More)
The obturator nerve passes in close proximity to the inferolateral bladder wall. Transurethral resection of bladder tumors close to these areas may stimulate the obturator nerve, causing violent adductor contraction and possible inadvertent bladder perforation. To avoid this reaction, local anesthetic blockade of the obturator nerve as it passes through the(More)
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