David Siambanes

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We reviewed the records of 14 patients suffering from symptomatic nonunion after an anterior cervical discectomy and arthrodesis procedure for whom revision procedures, consisting of posterior stabilization by means of the Rogers interspinous wiring technique, were performed. Radiographic union was achieved in all patients; however, the overall clinical(More)
The results of lumbar diskography at post-diskectomy and nonoperative disk levels in postoperative patients and patients without prior back surgery were reviewed over 3 years. Other possible predictive factors, including disk degeneration (per the Adam's classification), end-point resistance, gender, and age, also were reviewed. The results revealed that no(More)
In a sample of 3,498 students living in two counties in California, each student's weight and backpack load were measured. Demographic information as well as information about backpack use was obtained. Nonspecific mechanical back pain was found to be highly prevalent, and the reported severity and chronicity of pain were high. Controlling for age,(More)
The success of posterior lumbar interbody fusion has been analyzed primarily by plain radiography. There are no widely accepted criteria for fusion, except for lack of motion, which can be obviated by instrumentation, and the appearance of continuous bridging bone in the interspace. To determine the accuracy of plain radiography in detecting posterior(More)
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