Jens R. Chapman
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View article: Lateral Lumbar Interbody Fusion (LLIF): Is Trans-Psoas Surgery Associated with Muscle Size Changes and Clinical Findings?
Lateral Lumbar Interbody Fusion (LLIF): Is Trans-Psoas Surgery Associated with Muscle Size Changes and Clinical Findings? Open
Our study found that LLIF was associated with minor long-term decreases in psoas size and quality on the surgical side, small mean bilateral strength losses, and no side-specific sensory deficits.
View article: What Is Worse: A Comparison of Solitary Versus Multifocal Pyogenic Spondylodiscitis Using a Nationwide Analysis of Readmission Rates and Risk Factors
What Is Worse: A Comparison of Solitary Versus Multifocal Pyogenic Spondylodiscitis Using a Nationwide Analysis of Readmission Rates and Risk Factors Open
Background: Spondylodiscitis is a growing infectious condition with significant morbidity. The impact of multifocal involvement remains understudied. This study compared 90-day all-cause readmission rates between patients with solitary ver…
View article: Cervical Sagittal Alignment Revisited on the Path to Personalized Spine Surgery: A Big Picture Perspective Through Bibliometric Analysis and Visualization
Cervical Sagittal Alignment Revisited on the Path to Personalized Spine Surgery: A Big Picture Perspective Through Bibliometric Analysis and Visualization Open
Cervical sagittal alignment has received a rapid and disproportionate increase in publications in the last ten years which may reflect increased interest in personalized surgery through deformity correction and motion preservation. Our stu…
View article: Readmission rates and hospital charges: a comparative study of surgical interventions in degenerative spondylolisthesis and spinal canal stenosis
Readmission rates and hospital charges: a comparative study of surgical interventions in degenerative spondylolisthesis and spinal canal stenosis Open
ISD had comparable readmission and early postoperative complication rates versus decompression or fusion surgeries, with lower raw charges compared to fusion. Our results suggest that ISD may be a viable option for some patients compared t…
View article: The Impact of Location on De Novo Spondylodiscitis: Regions Matter but Are Secondary to Comorbidities
The Impact of Location on De Novo Spondylodiscitis: Regions Matter but Are Secondary to Comorbidities Open
Background/Objectives: Primary spondylodiscitis (SD) cases surging in incidence globally remain a diagnostic and therapeutic challenge for physicians. The effect of lesion location on outcomes remains unclear. This study aims to assess the…
View article: The conundrum of finding an optimal spondylodiscitis treatment pathway: how do treatments affect readmission rates?
The conundrum of finding an optimal spondylodiscitis treatment pathway: how do treatments affect readmission rates? Open
SD management remains challenging. We showed that primary surgical treatment of SD resulted in a significantly lower readmission rate with a longer time interval until readmission compared to non-surgically treatment. Surgery at initial ad…
View article: Iliopsoas Abscesses: Whose Problem is it? Insights Gained by an Institutional 100-Patient Consecutive Case Series
Iliopsoas Abscesses: Whose Problem is it? Insights Gained by an Institutional 100-Patient Consecutive Case Series Open
First-line treatment for IPA includes antibiotics and PCD, with surgery reserved for complex cases, gas formation, neurological involvement, proximity to vertebrae or spinal hardware, or failure of initial treatment.
View article: Multiple-rod constructs in thoracolumbar reconstructive spine surgery: Building a novel classification of heterogeneous rods for multiple etiologies (CHRoME) scoring system
Multiple-rod constructs in thoracolumbar reconstructive spine surgery: Building a novel classification of heterogeneous rods for multiple etiologies (CHRoME) scoring system Open
Background: Surgical management of complex spine disorders with instrumentation continues to expand. This present study investigates the possible therapeutic uses of a categorization nomenclature system that is widely recognized for multip…
View article: In-Hospital mortality in Spondylodiscitis: Risk factors assessed through the National Inpatient Sample analysis
In-Hospital mortality in Spondylodiscitis: Risk factors assessed through the National Inpatient Sample analysis Open
Management of SD remains complex. Our study revealed a lower rate of in-hospital mortality and length of stay than previous studies. Elective admission status was the strongest predictor of mortality, highlighting the benefits of early dia…
View article: Beyond the Spine: Exploring Mental Health Disorders in Spondylodiscitis
Beyond the Spine: Exploring Mental Health Disorders in Spondylodiscitis Open
Background/Objectives: Spondylodiscitis (SD) is a challenging and multifaceted condition with increasing incidences globally. Mental health disorders (MHDs) are well recognized for their negative impacts on outcomes. To our knowledge, the …
View article: The Impact of Hypoalbuminemia on Outcomes in Non-Surgically Treated Patients With Central Cord Injury
The Impact of Hypoalbuminemia on Outcomes in Non-Surgically Treated Patients With Central Cord Injury Open
Study design Database study. Objectives Acute traumatic central cord syndrome (atCCS) is the most common incomplete spinal cord injury in the US, characterized by motor weakness of the upper extremities with relative sparing of the lower e…
View article: Are Randomized Trials Better? Comparison of Baseline Covariate Balance of a Propensity Score-Balanced Lumbar Spine IDE Trial and Comparable RCTs
Are Randomized Trials Better? Comparison of Baseline Covariate Balance of a Propensity Score-Balanced Lumbar Spine IDE Trial and Comparable RCTs Open
Study Design Prospective Observational Propensity Score. Objectives Randomization may lead to bias when the treatment is unblinded and there is a strong patient preference for treatment arms (such as in spinal device trials). This report d…
View article: Spine surgery and readmission: Risk factors in lumbar corpectomy patients
Spine surgery and readmission: Risk factors in lumbar corpectomy patients Open
We established an all-cause 90-day readmission rate of 20.8%, which is in range of other procedures in spine surgery but underscores the severity of lumbar corpectomy. Underlying pathologies have a greater impact on the readmission rate co…
View article: The Association of Bone Mineral Density with Distal Junctional Kyphosis and Distal Junctional Failure After Multilevel Spine Fusions: A Systematic Review and Meta-Analysis
The Association of Bone Mineral Density with Distal Junctional Kyphosis and Distal Junctional Failure After Multilevel Spine Fusions: A Systematic Review and Meta-Analysis Open
Patients who developed DJK/DJF had significantly lower computed tomography-measured HU as compared to those without DJK/DJF. Our findings highlight the potential importance of BMD evaluation with computed tomography prior to multilevel spi…
View article: Malnutrition in spondylodiscitis: an overlooked risk factor
Malnutrition in spondylodiscitis: an overlooked risk factor Open
Malnutrition and hypoalbuminemia are relatively common in SD patients and are significant risk factors for both in-hospital mortality and readmission. Early identification, including screening for hypoalbuminemia and management of malnutri…
View article: The Importance of Preserving the Posterior Ligament Complex in Elective Lumbar Fusion Surgery: Early Results from a Single-Center Experience
The Importance of Preserving the Posterior Ligament Complex in Elective Lumbar Fusion Surgery: Early Results from a Single-Center Experience Open
We demonstrated a significant increase in mobility at the UIV+1 in lumbar fusion in patients with disrupted PLC. PLC deficiency at UIV+1 appears to contribute to the development of ASD through instability and is implicated in higher surgic…
View article: Cost-Effectiveness Analyses of Bone Morphogenetic Protein 2 (rhBMP-2) in Spinal Fusion: A Systematic Review
Cost-Effectiveness Analyses of Bone Morphogenetic Protein 2 (rhBMP-2) in Spinal Fusion: A Systematic Review Open
Study Design Systematic Review Study. Objectives The objective of this study is to assess the cost-effectiveness and cost-utility of rhBMP-2 in spine surgeries. Methods PubMed, MEDLINE, OVID and CENTRAL (Cochrane Central Register of Contro…
View article: Incidence and predictors of readmission following hospitalization for thoracic disc herniation
Incidence and predictors of readmission following hospitalization for thoracic disc herniation Open
We established a 90-day all-cause readmission rate of 18.9 % for TDH. There was no difference in readmission based on patients' initial neurological presentation. Non-surgical treatment was identified as an independent risk factor for read…
View article: A Cadaver Study: The Relationship of Vital Organs of the Thoracolumbar Junction During a far Lateral Approach Using a T-12 Corpectomy Model
A Cadaver Study: The Relationship of Vital Organs of the Thoracolumbar Junction During a far Lateral Approach Using a T-12 Corpectomy Model Open
Study Design Human cadaver study. Objectives To provide a qualitative and quantitative evaluation by demonstrating measurements of the proximity of vital structures involved and assessed injuries during a T12-corpectomy and cage implantati…
View article: Recent Global Trends and Hotspots in Occipitocervical Fusion: A Bibliometric Analysis and Visualization Study
Recent Global Trends and Hotspots in Occipitocervical Fusion: A Bibliometric Analysis and Visualization Study Open
This analysis of OCF literature provides a helpful overview of emerging trends and clinician concerns, especially as seen through the perspective of time.
View article: Historical Perspectives on the Evolution of Spino-Pelvic Fixation and its Implications on Clinical Care A Narrative Review
Historical Perspectives on the Evolution of Spino-Pelvic Fixation and its Implications on Clinical Care A Narrative Review Open
Study Design Broad narrative review. Objectives To review and summarize the evolution of spinopelvic fixation (SPF) and its implications on clinical care. Methods A thorough review of peer-reviewed literature was performed on the historica…