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STUDY DESIGN Prospective study of 5 spine surgeons rating 71 clinical cases of thoracolumbar spinal injuries using the Thoracolumbar Injury Severity Score (TLISS) and then re-rating the cases in a different order 1 month later. OBJECTIVE To determine the reliability of the TLISS system. SUMMARY OF BACKGROUND DATA The TLISS is a recently introduced(More)
STUDY DESIGN Using a cadaveric model, the amount of spinal motion generated during the execution of various prehospital transfer techniques was evaluated using a crossover study design. OBJECTIVE To assess the quantity of segmental motion generated across a globally unstable thoracolumbar spine during the execution of the log roll (LR), lift-and-slide,(More)
BACKGROUND Scapular notching is a well-documented complication of reverse shoulder arthroplasty. The effect of scapular notching on glenoid fixation is unknown. MATERIALS AND METHODS This study dynamically evaluated reverse shoulder glenoid baseplate fixation and assessed the effect of scapular notching on fixation in composite scapulae. A cyclic test was(More)
BACKGROUND CONTEXT Osteoporosis and osteomalacia are significant risk factors for fracture and spine instrumentation failure. Low-energy fractures are becoming increasingly more common because of an increase in life expectancy and age of the population. Decreased bone density is an independent risk factor for instrumentation failure in spinal fusion(More)
STUDY DESIGN.: Cadaveric biomechanical study. OBJECTIVE.: To quantify spinal motion created by transfer methods from supine to prone position in a cadaveric C1-C2 global instability model. SUMMARY OF BACKGROUND DATA.: Patients who have sustained a spinal cord injury remain at high risk for further secondary injury until their spine is adequately stabilized.(More)
UNLABELLED Anterior glenohumeral instability complicated by bone loss is a challenging problem and, when severe, may require surgical treatment with bone grafting. We review our institution's experience with humeral head and glenoid bone grafting for large Hill-Sachs lesions and glenoid defects. MATERIALS AND METHODS Patients who underwent intra-articular(More)
STUDY DESIGN Controlled laboratory study in a cadaveric model. OBJECTIVE To determine if removing shoulder pads using the elevated torso technique generated less spinal segment motion than using the flat torso method. SUMMARY OF BACKGROUND DATA Guidelines for care of the injured football player with a suspected spinal injury recommend initial(More)
BACKGROUND In this glenoid loosening study, we compared the fixation strength of multiple generic reverse shoulder glenoid baseplates that differed only in backside geometry and shape and size to optimize design from a fixation perspective. METHODS The fixation strength of 4 generic baseplates was quantified in a low-density polyurethane substrate to(More)
STUDY DESIGN Biomechanical evaluation of conventional and noninvasive halos in cadaveric C1-C2 and C5-C6 instability models. OBJECTIVE To compare the ability of a conventional halo and noninvasive halo (NIH) to immobilize the unstable cervical spine at the C1-C2 and C5-C6 levels. SUMMARY OF BACKGROUND DATA Many successful outcomes have been reported in(More)
BACKGROUND Patients who have sustained a spinal cord injury remain at risk for further neurologic deterioration until the spine is adequately stabilized. To our knowledge, no study has previously addressed the effects of different bed-to-operating room table transfer techniques on thoracolumbar spinal motion in an instability model. We hypothesized that the(More)