Brian P. Kelly

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The purpose of this study is to describe the kinematics of normal knees in vivo, assessed in deep flexion, using bi-planar radiographs. Antero-posterior and lateral views were obtained from five healthy males during three sequential positions of kneeling. In the first position, the subject knelt with the knees fully flexed (deep flexion between 150 and 165(More)
Squatting and kneeling are important daily activities for Middle and Far East cultures that require positioning the knee in deep flexion. In these activities, the limb becomes fully flexed with a knee flexion angle reaching between 150 and 160 degrees and the heel reaching the posterior surface of the upper thigh. Existing knee prostheses do not allow a(More)
and to my wife, Mi Kyung Ye for their love and support. iii ACKNOWLEGEMENTS I would like to thank my advisor, Dr. Denis J. DiAngelo for giving me the opportunity to work on this project and for encouragement and guidance. I would also like to express my gratitude to other committee members, Dr. I also would like to gratefully acknowledge the care and(More)
Angled screw insertion has been advocated to enhance fixation strength during posterior spine fixation. Stresses on a pedicle screw and surrounding vertebral bone with different screw angles were studied by finite element analysis during simulated multidirectional loading. Correlations between screw-specific vertebral geometric parameters and stresses were(More)
BACKGROUND Multilevel lumbar stenosis, in which 1 level requires stabilization due to spondylolisthesis, is routinely treated with multilevel open laminectomy and fusion. We hypothesized that a minimally invasive (MI) decompression is biomechanically superior to open laminectomy and may allow decompression of the level adjacent the spondylolisthesis without(More)
BACKGROUND Physical data are lacking on nutrient transport in human intervertebral discs (IVDs), which supports regeneration. Our objective was to study nutrient transport in porcine IVDs to determine the effects of biomechanical and physiological factors. METHODS In vitro testing of whole porcine IVDs was performed under different loading conditions.(More)
OBJECTIVE Lateral lumbar interbody fusion (LLIF) has emerged as a popular method for lumbar fusion. In this study the authors aimed to quantify the biomechanical stability of an interbody implant inserted using the LLIF approach with and without various supplemental fixation methods, including an interspinous plate (IP). METHODS Seven human cadaveric L2-5(More)
Citation: Hiibel SR, Lemos MS, Kelly BP and Cushman JC (2015) Evaluation of diverse microalgal species as potential biofuel feedstocks grown using municipal wastewater. Microalgae offer great potential as a third-generation biofuel feedstock, especially when grown on wastewater, as they have the dual application for wastewater treatment and as a biomass(More)
Background Context: Interest in lumbar disc arthroplasty as an alternative to fusion surgery continues to grow. The goal of disc arthroplasty is to replace the diseased disc while preserving and/or restoring motion at the operated spinal level. Different paradigms exist in the design of total disc arthroplasty devices. Purpose: The purpose of this study was(More)
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