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The Effect Of Fixation Plate Length On Spinal Instability Following Anterior Cervical Plate Fixation For The Repair Of In Vitro Flexion-Distraction Injuries, Abdulaziz J. Al-Kuwari

Electronic Thesis and Dissertation Repository

Abstract:

The Effect of Fixation Plate Length on Spinal Instability Following Anterior Cervical Plate Fixation for the Repair of in Vitro Flexion-Distraction Injuries

Introduction: Anterior cervical decompression and fusion with a plate (ACDFP) is a commonly performed treatment following a traumatic injury to the subaxial cervical spine. The purpose of the presented work was to determine the biomechanical effect of plate length on cervical spine kinematic stability following ACDFP stabilization for a simulated traumatic injury.

Methods: Eleven fresh-frozen cadaveric C5-C6 and C6-C7 motion segments were examined in this study. To assess kinematics, flexibility testing was performed on each specimen …

Validation Of A Novel Methodology For Evaluating Surgical Tissue Plane Identification, Syed T. Ali

Electronic Thesis and Dissertation Repository

Introduction: The ability to identify tissues planes is a fundamental surgical skill. This study attempts to validate a previously developed test for assessing this ability.

Methods: 48 video captured images from laparoscopic right hemicolectomies were presented on an iPad to 18 surgeons who were grouped based on experience (Consultants (C), Senior trainees (S), and the Junior trainees (J)). Subjects were asked to draw a line indicating the tissue plane of dissection. Lines were compared by a modified Hausdorff measure. Within group variability represented group precision and trainee accuracy was determined from comparison to Consultants.

Results: Within group comparisons demonstrated Consultants …

Pathophysiology Of Compartment Syndrome, Abdel-Rahman Lawendy

Electronic Thesis and Dissertation Repository

Acute limb compartment syndrome (CS), a potentially devastating complication of musculoskeletal trauma, is characterized by increased pressure within a closed osseofascial compartment, resulting in muscle-threatening and ultimately limb-threatening ischemia. Urgent fasciotomy remains the only effective treatment and a current gold-standard surgical therapy. Despite a large body of literature dedicated to understanding the pathophysiology of CS, the mechanisms of CS-induced tissue damage are rather poorly understood. The established view is that increasing compartmental pressure compromises microcirculatory perfusion, restricting oxygen and nutrient delivery to vital tissues, resulting in cellular anoxia and severe tissue necrosis. However, unlike complete ischemia, CS causes myonecrosis in …