Ahmad Nassr, M.D.

The purpose of this study is to treat the study population by demonstrating clinical success, safety, and effectiveness of the BalancedBack Total Joint Replacement device, and to demonstrate noninferiority.

The objective of this study is to develop a clinical registry of patients diagnosed with cervical radiculopathy or cervical myelopathy over a 3 year period.

The purpose of this study is to determine if there is a difference in outcome forms recorded before surgery and those recorded as an estimate of the preoperative health status after spine surgery.

The purpose of this trial is to assess whether the Total Posterior Spine System (TOPS System) is more effective than transforaminal lumbar interbody fusion (TLIF) when used to stabilize a single lumbar level (L2 - L5) following surgical decompression in patients diagnosed with (1) at least moderate lumbar spinal stenosis, and (2) Grade 1 spondylolisthesis (or retrolisthesis), and (3) thickening of the ligamentum flavum or scarring of the facet joint capsule. Success will be assessed by means of a composite endpoint that measures improvement in in patient reported outcomes and the absence of any major device related complications.

The purpose of this study is to compare postsurgical pain control following local infiltration analgesia and bupivacaine HCl with EXPAREL, versus without EXPAREL, in adult subjects undergoing open lumbar spinal fusion surgery. The study will also compare additional effectiveness, safety, and health economic outcomes.

The aim of this study is to evaluate efficacy and safety of riluzole in the treatment of patients with acute SCI. The primary objective is to evaluate the superiority of riluzole, at a dose of 2 x 100 mg the first 24 hours followed by 2 x 50 mg for the following 13 days after injury, as compared to placebo, in change between 180 days and baseline in motor outcomes as measured by International Standards for Neurological Classification of Spinal Cord Injury Examination (ISNCSCI) Motor Score, in patients with acute traumatic SCI, presenting to the hospital less than 12 hours after injury. Secondary objectives are to evaluate the effects of riluzole on overall neurologic recovery, sensory recovery, functional outcomes, quality of life outcomes, health utilities, mortality, and adverse events. The working hypothesis is that the riluzole treated subjects will experience superior motor, sensory, functional, and quality of life outcomes as compared to those receiving placebo, with an acceptable safety profile.

The purpose of this study is to collect real world evidence (RWE) safety and efficiency data on patients who plan to undergo a single-level TLIF or PLIF instrumented with pedicle screws, using the framework of a prospecitve clinical study (with defined enrollement criteria and pre-specified research follow-up timepoints).

CSM (Cervical spondylotic myelopathy) is the most common cause of spinal cord injury worldwide. While there is evidence from the recently completed SpineNet prospective study that surgical decompression is an effective treatment for CSM, it is clear that many patients have remaining neurological impairment. While surgery is relatively safe, approximately 3% of patients maintain a neurological problem. Given this background and data from preclinical models of non-traumatic and traumatic spinal cord injury, there is strong evidence to consider the potential benefit of adding a neuroprotective drug which aids in the treatment of patients with CSM whom are undergoing surgical decompression. Riluzole is FDA-approved for the treatment of amyotrophic lateral sclerosis, which has some similar clinical features to CSM. Riluzole is currently under investigation for traumatic spinal cord injury. Given this background, there is a strong basis to consider studying the potential neurological benefits of Riluzole as a treatment to surgical decompression in patients with CSM.

What is the incidence and etiology of bone overgrowth in protein versus other bone graft?