Spine
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Randomized Controlled Trial
Circumferential fusion is dominant over posterolateral fusion in a long-term perspective: cost-utility evaluation of a randomized controlled trial in severe, chronic low back pain.
Cost-utility evaluation of a randomized, controlled trial with a 4- to 8-year follow-up. ⋯ Circumferential fusion is dominant over instrumented posterolateral fusion, that is, both being significantly cheaper and significantly better in a long-term, societal perspective.
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Randomized Controlled Trial
Effect of low-dose ketamine on voltage requirement for transcranial electrical motor evoked potentials in children.
Randomized controlled trial. OBJECTIVE.: To determine the effect of low-dose ketamine on the voltage needed to elicit maximal amplitude of the motor-evoked response to transcranial electrical stimulation during propofol/remifentanil anesthesia in children undergoing scoliosis surgery. ⋯ Addition of low-dose ketamine to propofol/remifentanil anesthesia does not significantly reduce the voltage needed to elicit maximum amplitude of the motor-evoked response to transcranial electrical stimulation.
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An in vitro biomechanical study. ⋯ Extrapolation of the present results indicated dynamic spinal cord compression of up to 88% in those with stenotic canals and 35% in those with normal canal diameters. These results are consistent with the wide range of neurologic injury severity observed clinically due to bilateral facet dislocation.
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Case Reports
Brachial neuritis: an under-recognized cause of upper extremity paresis after cervical decompression surgery.
Case series. ⋯ Brachial neuritis appears to be an under-recognized cause of delayed-onset shoulder pain associated with upper extremity weakness that develops as a consequence of the stress of surgery rather than as a complication of surgical technique.