Publications by authors named "Ethan Vyhmeister"

Structural families of quasiracemic materials were studied to understand how the pairwise assembly of regioisomeric quasienantiomers affects the molecular recognition process. These systems combine all variations of monofluorinated aryl groups (., 2-/3-, 2-/4-, and 3-/4-) attached to diarylamide, naphthylamide, and benzoyl phenylalanine molecular frameworks.

View Article and Find Full Text PDF

Purpose: The primary aim of this study was to identify and characterize medical malpractice lawsuits following arthroscopic surgery.

Methods: Two large medicolegal databases-Westlaw Edge and VerdictSearch-were queried using the term "arthroscopy." Cases were reviewed and classified according to the nature of the plaintiff's complaint.

View Article and Find Full Text PDF

Background Context: The social vulnerability index (SVI) is a centers for disease control and prevention (CDC) census data tool to identify populations that are susceptible to hazards and health emergencies. Higher scores indicate more socioeconomic vulnerability. There is a scarcity of studies investigating the relationship of SVI on spine surgery outcomes.

View Article and Find Full Text PDF

Radiographic parameters for diagnosing cervical neuroforaminal stenosis (CNFS) are not well described. To develop definitive criteria for diagnosis of CNFS, a standardized baseline of average neuroforaminal dimensions must first be established. Thus, the aim of this study was to: (1) use computed tomography (CT) of patients without neck pain or spinal pathology to establish mean cervical neuroforaminal dimensions (CNFD) across multiple age groups and (2) assess differences in CNFD by age.

View Article and Find Full Text PDF

Introduction: The normative relationship between lumbar intervertebral disc space height (DSH) and neuroforaminal dimensions (NFD) has yet to be defined.

Research Question: The purpose of this study was to investigate the relationship between lumbar DSH and NFD using computed tomography (CT), accounting for influences of patient demographic and anthropometric characteristics.

Materials And Methods: We analyzed CT imaging of 350 female and 350 male patients.

View Article and Find Full Text PDF

Introduction: Quantitative parameters for diagnosis of congenital lumbar stenosis (CLS) have yet to be universally accepted. This study establishes parameters for CLS using CT, assessing the influences of patient sex, race, ethnicity, and anthropometric characteristics.

Methods: Interpedicular distance (IPD), pedicle length, canal diameter, and canal area were measured using 1,000 patients between 18 and 35 years of age who were without spinal pathology.

View Article and Find Full Text PDF

Background: Race and sex differences are not consistently reported in the literature. Fundamentally, anatomical differences of cervical neuroforaminal dimensions (CNFD) amongst these groups would be important to know.

Purpose: To establish normative radiographic morphometric measurements of CNFD and uncover the influence of patient sex, race, and ethnicity while also considering anthropometric characteristics.

View Article and Find Full Text PDF

Objectives: While the radiographic criteria for diagnosing central lumbar stenosis are well described, criteria for diagnosing neuroforaminal stenosis (NFS) are unclear. Prior research has utilized magnetic resonance imaging (MRI) to characterize neuroforaminal dimensions (NFDs). However, this approach has inherent limitations that can adversely impact measurement accuracy.

View Article and Find Full Text PDF

The standard technique for multilevel anterior cervical discectomy and fusion (ACDF) uses a single plate to span multiple vertebral levels. However, the usage of single long plates is linked to potential hardware failure and screw pullout from stress overload. A single long plate is also more likely to fail at the caudal levels.

View Article and Find Full Text PDF

Study Design: Retrospective cohort.

Objective: To report normative measurements of L1 to S1 lumbar neuroforamina on plain film radiography (PFR), computed tomography (CT), and magnetic resonance imaging (MRI), accounting for patients' sex and ethnicity.

Background: The quantitative criteria fothe diagnosis of neuroforaminal stenosis remains unknown.

View Article and Find Full Text PDF

Purpose: To compare measurements of lumbar neuroforaminal dimensions (NFD) derived from plain film radiography (PFR) and computed tomography (CT) of young patients without spinal pathology.

Methods: We analyzed 213 patients between 18 and 35 years of age without spinal pathology who received PFR and CT within one year of each other. NFD were defined as foraminal height, sagittal anterior-to-posterior width, and area.

View Article and Find Full Text PDF