Assessing Public-Reported Perceptions of Low-Risk Hand Surgery Provided in the Office Versus an Ambulatory Surgery Center: Survey Study.

Purpose: There is growing evidence for the safety of wide-awake, office-based, low-risk hand surgery. However, there is limited insight into patient receptiveness to these procedures. Here, we evaluate the public perceptions and degree of tolerance of low-risk, office-based hand surgery.

Does the Number of Levels Fused Affect Spinopelvic Parameters and Clinical Outcomes Following Posterolateral Lumbar Fusion for Low-Grade Spondylolisthesis?

Study Design: Retrospective cohort.

Objectives: To determine how the number of fused intervertebral levels affects radiographic parameters and clinical outcomes in patients undergoing open posterolateral lumbar fusion (PLF) for low-grade degenerative spondylolisthesis.

Methods: This was a retrospective cohort study on patients who underwent open PLF for low-grade spondylolisthesis at a single institution from 2011 to 2018.

Etiology-Based Classification of Adjacent Segment Disease Following Lumbar Spine Fusion.

Background: Adjacent segment disease (ASDz) is a potential complication following lumbar spinal fusion. A common nomenclature based on etiology and ASDz type does not exist and is needed to assist with clinical prognostication, decision making, and management.

Questions/purposes: The objective of this study was to develop an etiology-based classification system for ASDz following lumbar fusion.

Do Clinical Outcomes and Sagittal Parameters Differ Between Diabetics and Nondiabetics for Degenerative Spondylolisthesis Undergoing Lumbar Fusion?

Study Design: Retrospective cohort study.

Objective: To assess the effect of diabetes mellitus (DM) on clinical and radiographic outcomes in patient with degenerative spondylolisthesis undergoing posterior lumbar spinal fusion.

Methods: Analysis of patients who underwent open posterior lumbar spinal fusion from 2011 to 2018.

Sagittal Balance in Adult Idiopathic Scoliosis.

Study Design: A narrative review article study.

Objective: The objective of this study was to highlight guiding principles and challenges faced with addressing sagittal alignment in patients with adult idiopathic scoliosis (AIS) and to discuss effective surgical strategies based upon our clinical experience.

Summary Of Background Data: Previous research and guidelines for the treatment of AIS have focused on the correction of spinal deformity in the coronal and axial planes.

Does increasing age impact clinical and radiographic outcomes following lumbar spinal fusion?

Background Context: Despite the growing senior population within the United States, there is a lack of consensus regarding the safety and efficacy of performing lumbar spinal fusion for this population.

Purpose: To evaluate the clinical and radiographic outcomes in different age cohorts following lumbar spinal fusion.

Study Design: Retrospective cohort analysis.

Patients with predominantly back pain at the time of lumbar fusion for low-grade spondylolisthesis experience similar clinical improvement to patients with predominantly leg pain: mid-term results.

Background Context: Patients with back pain predominance (BPP) have traditionally been thought to derive less predictable symptomatic relief from lumbar fusion surgery.

Purpose: To compare postoperative clinical outcomes as well as degree of improvement in clinical outcome measures between patients with BPP and patients with leg pain predominance (LPP) undergoing open posterior lumbar fusion.

Study Design: Retrospective cohort study.

Clinical Presentation and Outcomes of Patients With a Lumbar Far Lateral Herniated Nucleus Pulposus as Compared to Those With a Central or Paracentral Herniation.

Study Design: Retrospective cohort study.

Objectives: Examine pre- and postoperative outcomes between patients presenting with a central/paracentral versus a far lateral herniated nucleus pulposus (HNP) and assess whether significantly worse postoperative outcomes, assessed via patient self-reported survey, are associated with far lateral disc herniations.

Methods: We performed a retrospective cohort analysis of patients who underwent primary lumbar decompression between January 2008 and December 2015.

Does obesity impact lumbar sagittal alignment and clinical outcomes after a posterior lumbar spine fusion?

Purpose: The purpose of this study is to compare clinical patient-reported outcomes and radiographic sagittal parameters between obese and non-obese patients following open posterior lumbar spine fusion (PLSF).

Methods: A retrospective cohort study was conducted for patients who underwent open PLSF from 2011 to 2018. Patients were classified as obese as per Center for Disease Control and Prevention guidelines if their body mass index (BMI) ≥ 30 kg/m.

Comparison of Stand-alone Lateral Lumbar Interbody Fusion Versus Open Laminectomy and Posterolateral Instrumented Fusion in the Treatment of Adjacent Segment Disease Following Previous Lumbar Fusion Surgery.

Study Design: Retrospective cohort study.

Objective: The aim of this study was to compare clinical and radiographic outcomes of patients who underwent stand-alone lateral lumbar interbody fusion (LLIF) to those who underwent posterolateral fusion (PLF) for symptomatic adjacent segment disease (ASD).

Summary Of Background Data: Recent studies have suggested that LLIF can successfully treat ASD; however, there are no studies to date that compare LLIF with the traditional open PLF in this cohort.

All-posterior total spondylectomy for thoracic spinal tumors.

Total en bloc spondylectomy (TES) involves disruption of the bony neural ring via bilateral pediculotomy and posterior laminectomy followed by the vertebrectomy. All-posterior TES allows for resection of malignant and benign aggressive spine tumors with minimal morbidity. The purpose of this report is to describe two cases of all-posterior spondylectomy using the recently developed Resegone retractor (K2M, Leesburg, VA, USA) which facilitates an all-posterior resection.

Comparing Allografts to Autografts for Maintenance of Cervical Sagittal Parameters and Clinical Outcomes Following Anterior Cervical Discectomy and Fusion With Anterior Cervical Plating.

Objective: Current literature has not shown if using either allograft or autograft differentially affects postoperative cervical sagittal parameters. The goal of this study was to compare sagittal alignment and patient-reported outcomes following anterior cervical discectomy and fusion (ACDF) with allograft versus autograft.

Methods: A retrospective cohort analysis of patients who underwent single-level ACDF was conducted.

Gender Differences for Hip and Knee Arthroplasty: Complications and Healthcare Utilization.

Introduction: The influence of patient gender on complications and healthcare utilization remains unexplored. The purpose of the present study was to determine if patient gender significantly affected outcomes following total hip arthroplasty (THA) and total knee arthroplasty (TKA).

Methods: Retrospective cohort study of THA and TKA patients was performed using the Nationwide Inpatient Sample from 2002 to 2011.

Obesity does not impact clinical outcome but affects cervical sagittal alignment and adjacent segment degeneration in short term follow-up after an anterior cervical decompression and fusion.

Background Context: Obesity increases complications and cost following spine surgery. However, the impact on sagittal alignment and adjacent segment degeneration (ASD) after anterior cervical decompression and fusion is less understood.

Purpose: To compare clinical and radiographic outcomes after anterior cervical decompression and fusion between obese and nonobese patients.

Patients Undergoing Revision Microdiskectomy for Recurrent Lumbar Disk Herniation Experience Worse Clinical Outcomes and More Revision Surgeries Compared With Patients Undergoing a Primary Microdiskectomy.

Introduction: Recurrent disk herniation treatment aims to optimize outcomes. This study compares the demographics and patient-reported outcomes of patients who underwent primary or revision lumbar microdiskectomy surgery for recurrent disk herniation.

Methods: A retrospective cohort analysis was performed of consecutive patients who underwent primary or revision lumbar microdiskectomies between January 2008 and December 2015.

Sagittal spinopelvic malalignment in degenerative scoliosis patients: isolated correction of symptomatic levels and clinical decision-making.

Background: This study aims to determine if (1) loss of lumbar lordosis (LL), often associated with degenerative scoliosis (DS), is structural or rather largely due to positional factors secondary to spinal stenosis; (2) only addressing the symptomatic levels with a decompression and posterolateral fusion in carefully selected patients will result in improvement of sagittal malalignment; and (3) degree of sagittal plane correction achieved with such a local fusion could be predicted by routine pre-operative imaging.

Methods: A retrospective study design with prospectively collected imaging data of a consecutive series of surgically treated DS patients who underwent decompression and instrumented fusion at only symptomatic levels was performed. Pre- and post-operative plain radiographs and pre-operative magnetic resonance imaging (MRIs) of the spinopelvic region were analyzed.

The Duration of Symptoms Does Not Impact Clinical Outcomes Following Lumbar Decompression Surgery.

Study Design: A retrospective cohort analysis.

Objective: The aim of this study was to assess whether duration of symptoms (DOS) has an effect on clinical outcomes in patients undergoing lumbar decompression.

Summary Of Background Data: The success of surgical interventions for lumbar spinal stenosis varies depending on numerous factors, including DOS.

Intraoperative CT and Surgical Navigation for Iliosacral Screws: Technique for Patients With Sacral Dysmorphism.

Percutaneous iliosacral screw (IS) fixation for pelvic ring injuries with the use of an O-arm imaging system has been associated with decreased procedure time and improved accuracy of IS screw placement compared with the use of fluoroscopic guidance. Specifically, patients with sacral dysmorphism require identification of safe bony sacral corridors, using specific anatomical measurements, to decrease the likelihood of complications such as screw perforation. Intraoperative computed tomography imaging and navigation can aid in safe and accurate IS screw fixation in patients with difficult anatomy.

Multi- versus single-level anterior cervical discectomy and fusion: comparing sagittal alignment, early adjacent segment degeneration, and clinical outcomes.

Purpose: The purpose of this study was to compare the rates of adjacent segment degeneration (ASD), sagittal alignment parameters, and patient-reported outcomes in patients who underwent multi-level versus single-level anterior cervical discectomy and fusion (ACDF).

Methods: A retrospective cohort analysis was performed on consecutive patients who underwent an ACDF. Pre- and post-operative radiographic assessment included ASD, change in C2-C7 lordosis, T1 angle, levels fused, sagittal vertical axis (SVA), fusion mass lordosis, proximal and distal adjacent segment lordosis.

Relationship of Sacral Fractures to Nerve Injury: Is the Denis Classification Still Accurate?

Objective: Use modern computed tomographic imaging to reassess neurological injury risks associated with zone I-III sacral fractures as originally described by Denis et al.

Design: Retrospective case-control study.

Setting: University Level I Trauma Center.