Evaluating the Validity and Test-retest Reliability of the Sagittal Plane Shear Index (SPSI).
Orthopaedic surgeons are often faced with the clinical dilemma of whether or not to add fusion to a decompression procedure. To decide between these two surgical options, surgeons rely mostly on their experience to conclude if a level is unstable preoperatively or if a specific decompression procedure is likely to destabilize the spine. Recently, the Sagittal Plain Shear Index (SPSI) has been developed as a valid test for determining the degree of spinal (in)stability. The SPSI metric, which can be calculated using flexion-extension radiographs of the lumbar spine, informs the orthopaedic surgeon about whether the spine is stable in and of itself (necessitating decompression surgery only) or whether there is spinal instability (necessitating decompression and additional fusion surgery). The SPSI metric can be calculated using both the validated semi-automated QMA® and more recently developed fully automated Spine CAMP software platforms. The concurrent validity between these two software platforms, as well as the reliability of both of these objective diagnostic indicator for spinal instability have not yet been evaluated. This study will investigate if SPSI-metrics/values obtained with Spine CAMP are equivalent to measurements from QMA®, and will also investigate the repeatability of two measurements of the SPSI taken one hour apart ('test-retest reliability').
A Post-Market Study Evaluating Fluid Shunting Using the Automatic Continuous Effusion Management System (ACES™) in Patients With Symptomatic Aseptic Pleural Effusion
The study will enroll recurrent aseptic pleural effusion patients who are designated by their physician as needing treatment to control the fluid. Baseline assessment will include a history and physical, chest imaging and quality of life questionnaires.
After ACES implantation, patients will remain under hospital care for general observation as per standard-of-care before being discharged home with access to electronic diaries for tracking pain and dyspnea.
Safety, Radiological and Patient Reported Outcomes of i-FACTOR+ Matrix Bone Graft Device - A Canadian, Multicenter, Post-Market Clinical Investigation
The study intends tracking the usage patterns of a Bonegraft device within spine surgery in a multicenter setting in Canada.
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