Spine
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A prospective clinical study using venography to evaluate deep venous thrombosis after posterior spinal surgery. ⋯ The prevalence of deep venous thrombosis after posterior spinal surgery is higher than generally recognized. Therefore, further study is necessary to clarify the appropriate method for screening and the effect of prophylaxis against thromboembolism after spinal surgery.
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A finite element investigation to determine the causal mechanisms that lead to odontoid fracture. ⋯ Force loading that puts the head in extension coupled with lateral shear or compression leads to Type I fractures, whereas axial rotation and lateral shear can produce Type II fractures. The model failed to elucidate causal mechanisms for Type III fractures. Flexion seems to provide a protective mechanism against force application that would otherwise cause a higher risk of odontoid failure.
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A retrospective review of contemporaneously acquired clinical data supplemented by experimental cadaver dissection. ⋯ The most common cause of vocal cord paralysis after anterior cervical spine surgery is compression of the RLN within the endolarynx. Monitoring of ET cuff pressure and release after retractor placement may prevent injury to the RLN during anterior cervical spine surgery.
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Review Randomized Controlled Trial Comparative Study Clinical Trial
The Cochrane review of bed rest for acute low back pain and sciatica.
A systematic review within the Cochrane Collaboration Back Review Group. ⋯ Bed rest compared with advice to stay active at best has no effect, and at worst may have slightly harmful effects on LBP. There is not an important difference in the effects of bed rest compared with exercises in the treatment of acute low back pain, or 7 days compared with 2-3 days of bed rest in patients with low back pain of different durations with and without radiating pain.