L4-L5 Facet Dislocation Treated in a Delayed Fashion with Excellent Early Clinical Results.

Introduction: Introduction: Lumbar facet fracture-dislocations are rare injuries that are generated from a significant trauma. Literature regarding these injuries is limited to case reports, and there are even more limited reports concerning whether the delay of operative intervention in neurologically intact patients can achieve good clinical results if concomitant injuries and/or medical issues preclude urgent operative intervention. There has been no consensus on which operative techniques are effective in achieving an anatomic reduction of these injuries.

The Outcomes of Revision Anterior Cervical Decompression and Fusion Using a Stand-Alone Implant Versus Traditional Interbody Polyetheretherketone Cage, Titanium Plate, and Screw Instrumentation.

Introduction: Anterior cervical decompression and fusion (ACDF) is the standard surgical procedure for cervical radiculopathy and myelopathy, although ACDF includes risks of adjacent segment disease (ASD) and subsequent revision procedures. Various interbody cage, plate, and screw options can be utilized. Stand-alone devices were designed to overcome undesired complications of hardware prominence and associated dysphagia, soft tissue violation, and adjacent level encroachment.

Prospective, multicenter clinical trial comparing the M6-C compressible cervical disc with anterior cervical discectomy and fusion for the treatment of single-level degenerative cervical radiculopathy: 5-year results of an FDA investigational device exemption study.

Background Context: Various total disc replacement (TDR) designs have been compared to anterior cervical discectomy and fusion (ACDF) with favorable short and long-term outcomes in FDA-approved investigational device exemption (IDE) trials. The unique design of M6-C, with a compressible viscoelastic nuclear core and an annular structure, has previously demonstrated favorable clinical outcomes through 24 months.

Purpose: To evaluate the long-term safety and effectiveness of the M6-C compressible artificial cervical disc and compare to ACDF at 5 years.

Longitudinal Assessment of Modern Spine Surgery Training: 10-Year Follow-up of a Nationwide Survey of Residency and Spine Fellowship Program Directors.

Unlabelled: Spine surgeons complete training through residency in orthopaedic surgery (ORTH) or neurosurgery (NSGY). A survey was conducted in 2013 to evaluate spine surgery training. Over the past decade, advances in surgical techniques and the changing dynamics in fellowship training may have affected training and program director (PD) perceptions may have shifted.

The effectiveness of pre-contoured titanium alloy rods in inducing thoracic kyphosis after sequential spinal releases in an biomechanical model.

Purpose: Evaluate the ability of pre-contoured rods to induce thoracic kyphosis (TK) in human cadaveric spines and determine the effectiveness of sequential surgical adolescent idiopathic scoliosis (AIS) release procedures.

Methods: Six thoracolumbar (T3-L2) spine specimens were instrumented with pedicle screws bilaterally (T4-T12). Over correction using pre-contoured rods was performed for intact condition and Cobb angle was measured.

Spinal deformity surgery is accompanied by serious complications: report from the Morbidity and Mortality Database of the Scoliosis Research Society from 2013 to 2020.

Purpose: The Morbidity and Mortality (M&M) report of the Scoliosis Research Society (SRS) has been collected since 1965 and since 1968 submission of complications has been required of all members. Since 2009, the SRS has collected information on death, blindness, and neurological deficit, with acute infection being added in 2012 and unintentional return to the operating room (OR) being added in 2017. In this report, we use the most recent data submitted to the SRS M&M database to determine the rate of neurological deficit, blindness, acute infection, unintentional return to the OR, and death, while also comparing this information to previous reports.

CT based bone mineral density as a predictor of proximal junctional fractures.

Background: Proximal junctional fractures (PJFr) can be a catastrophic complication associated with adult spinal deformity surgery. Osteoporosis can be a major risk factor for the cause of PJFr. Recent studies suggest using surrogate computed tomography (CT) scans in place of spinal dual-energy x-ray absorptiometry (DEXA) scores for bone mineral density (BMD).

Comparison of operative implications between adolescent and young adult idiopathic scoliosis patients from scoliosis research society mortality and morbidity database.

Purpose: To compare the operative implications between adolescent idiopathic scoliosis patients (10-18 years) and young adult idiopathic scoliosis (YAdIS) patients (19-30 years).

Methods: This was a retrospective study querying the SRS M&M database for AIS (10-18 years) and YAdIS (19-30 years) cases enrolled between 2009 and 2015. Demographic and surgical parameters (Lenke curve classification, preoperative curve magnitude, approach type, osteotomy type, estimated blood volume (EBV), levels of fusion and ASA scores) were evaluated and compared between groups.

Bridging the Cervicothoracic Junction During Multi-Level Posterior Cervical Decompression and Fusion: A Systematic Review and Meta-Analysis.

Study Design: Systematic review and Meta-analysis.

Objective: This systematic review seeks to compare fusion, reoperation and complication rates, estimated blood loss (EBL), and surgical time between multi-level instrumented fusions with LIVs (lowest instrumented vertebra) in the cervical spine and those that extend into the thoracic spine.

Summary Of Background Data: Several studies address the question of whether to extend a long-segment, posterior cervical fusions, performed for degenerative disease, into the upper thoracic spine.

The Reliability of CT Scan Measurements of Pelvic Incidence in the Evaluation of Adult Spondylolisthesis.

Background:  Pelvic incidence (PI) has been described as a parameter that may be a risk factor for lumbar spondylolisthesis (SPL). Studies have reported PI measurement is more precise in CT scans. Very limited studies have measured PI using CT scans to evaluate SPL.

Impact of liberal intraoperative allogeneic blood transfusion on postoperative morbidity and mortality in major thoracic and lumbar posterior spine instrumentation surgeries.

Purpose: To investigate the impact of intraoperative blood transfusion on outcomes in patients who had major thoracic and lumber posterior spine instrumentation surgery.

Methods: Retrospective study included patients who underwent major spine surgery between 2013 and 2017. Patients' demographics, surgical charts, anesthesia charts, discharge charts and follow-up outpatient charts were reviewed.

Distal Ventral Iliac Pathway for Spinopelvic Fixation: Technique Description and Case Series.

Background: Pelvic fixation improves the stability of spinal instrumentation and can be used in high-grade degenerative disease, trauma, deformity, and destabilizing invasive pathologies, such as infection and tumor. Classic techniques for spinopelvic fixation include traditional iliac screws and S2-Alar-Iliac screws. We present a case series describing the distal ventral iliac pathway (DVIP) for spinopelvic fixation and discuss surgical indications and merits of this technique.

Evaluation of shoulder balance in early onset scoliosis after definitive fusion and comparison with adolescent idiopathic scoliosis shoulder balance.

Study Design: The Children Spine Study Group registry was queried for early onset scoliosis (EOS) patients who had final definitive spinal fusion after their scoliosis was managed with either growing rods or VEPTR. The Harms Study Group registry was queried for adolescent idiopathic scoliosis (AIS) patients who had definitive fusion OBJECTIVE: The goal is to assess shoulder alignment in EOS patients after a definitive fusion and how these radiographic outcomes relate to the more familiar situation of post-definitive fusions shoulder alignment in AIS patients.

Background: EOS is a challenging pathology to manage.

Harmonized outcome measures for use in degenerative lumbar spondylolisthesis patient registries and clinical practice.

Objective: The development of new treatment approaches for degenerative lumbar spondylolisthesis (DLS) has introduced many questions about comparative effectiveness and long-term outcomes. Patient registries collect robust, longitudinal data that could be combined or aggregated to form a national and potentially international research data infrastructure to address these and other research questions. However, linking data across registries is challenging because registries typically define and capture different outcome measures.

Prospective, multicenter clinical trial comparing M6-C compressible six degrees of freedom cervical disc with anterior cervical discectomy and fusion for the treatment of single-level degenerative cervical radiculopathy: 2-year results of an FDA investigational device exemption study.

Background Context: Various designs of total disc replacement (TDR) devices have been compared to anterior cervical discectomy and fusion (ACDF) with favorable outcomes in FDA-approved investigational device exemption trials. The design of M6-C with a compressible viscoelastic nuclear core and an annular structure is substantially different than prior designs and has previously demonstrated favorable kinematics and clinical outcomes in small case series.

Purpose: To evaluate the safety and effectiveness of the novel M6-C compressible artificial cervical disc compared with ACDF for subjects with single-level degenerative cervical radiculopathy.

Comparison of adverse events between cervical disc arthroplasty and anterior cervical discectomy and fusion: a 10-year follow-up.

Background Context: Cervical disc arthroplasty (CDA) has been advocated as an alternative to anterior cervical discectomy and fusion (ACDF) with the added potential to reduce the risk of adjacent level disc degeneration and segmental instability. However, the long-term adverse events of arthroplasty have yet to be fully reported.

Purpose: To investigate the 10-year follow-up adverse events rates between CDA and ACDF.

Outcomes of Negative Pressure Wound Therapies in the Management of Spine Surgical Site Wound Infections.

Background: Many studies report benefits using negative pressure wound therapy (NPWT) in surgical site infections (SSIs). We measured and compared efficacy and complications associated with NPWT for traditional versus suprafascial vacuum-assisted closures (VACs).

Methods: This is a retrospective chart review of consecutive SSIs managed with negative wound therapy after spinal procedures between 2012 and 2015 from a single, academic center.

Nerve Root Sedimentation Sign: Can It Predict the Success for Surgical Intervention in Patients With Symptomatic Lumbar Spinal Stenosis?

Introduction:  The use of interspinous process devices are less invasive surgical methods designed to manage mild to moderate lumbar spinal stenosis symptoms. Symptomatic relief may not be seen in all patients undergoing this procedure. Magnetic resonance imaging (MRI) parameters have been used to predict the success of clinical outcomes in patients with symptomatic lumbar spinal stenosis for decompressive surgeries.