Mark Whitbeck

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OBJECTIVES To assess mechanism of injury as a clinical course predictor in patients with complete anterior and posterior pelvic ring disruptions [innominosacral dissociation (ISD)]. DESIGN Retrospective review of radiographs and medical data. SETTING R Adams Cowley Shock Trauma Center, Baltimore, Maryland, statewide trauma center. PATIENTS Forty-three(More)
STUDY DESIGN Lateral dual-energy x-ray absorptiometry was used to examine isolated changes in vertebral body mineral density in humans after instrumented posterolateral lumbar fusion. OBJECTIVES To determine if device-related osteopenia will occur in humans who undergo spinal fusion. Device-related osteopenia is known to occur as a result of local stress(More)
BACKGROUND Cervical spondylotic myelopathy (CSM) is one of the leading causes of spinal cord dysfunction in the adult population. Laminoplasty is an effective decompressive procedure for the treatment of CSM. OBJECTIVE We present our experience with 40 patients who underwent cervical laminoplasty using titanium miniplates for CSM. METHODS We performed a(More)
Image warping plays an extremely important role in face matching and recognition and therefore has wide applications and great significance in computer vision, biomedical imaging and homeland security. One popular warping algorithm developed by Alex Rosen, known as AlexWarp has the drawback that it only allows one pair of landmarks being specified at one(More)
We present a case of symptomatic vertebral hemangioma in a 49-year-old woman who presented with abrupt onset of left lower extremity symptoms. MR images showed an unusual spoke wheel trabeculation pattern on the axial CT and MR images. Because the entire vertebral body was involved, exclusion of malignant tumor was necessary.
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