The Variability of the Cervicothoracic Inflection Point: A Cohort Analysis of the Multi-Ethnic Asymptomatic Normative Study (MEANS).

Study Design: Cross-sectional Cohort Study.

Objective: To determine the cervicothoracic inflection point in an asymptomatic, adult population.

Introduction: The cervicothoracic inflection point (CTIP) is an important sagittal marker to understand for patients with cervical deformities.

The multifaceted musculoskeletal hydatid disease.

Musculoskeletal hydatid disease is rare and can be located anywhere but most commonly the bone and muscles of the spine, pelvis, then the lower limbs. Imaging is essential for its diagnosis, performing the pre-therapeutic assessment, guiding possible percutaneous treatments, and providing post-therapeutic follow-up. Musculoskeletal hydatidosis can take several forms that may suggest other infections and tumors or pseudotumors.

Characteristics of Spinal Morphology According to the "Current" and "Theoretical" Roussouly Classification Systems in a Diverse, Asymptomatic Cohort: Multi-Ethnic Alignment Normative Study (MEANS).

Study Design: Cross-sectional cohort study.

Objective: To classify spinal morphology using the "current" and "theoretical" Roussouly systems and assess sagittal alignment in an asymptomatic cohort.

Methods: 467 asymptomatic volunteers were recruited from 5 countries.

Traumatic iliac muscle hematoma: A rare etiology of quadriceps palsy (case report).

Introduction And Importance: Quadriceps palsy is a sign of femoral nerve injury. Classically it is a compression of the nerve by a haematoma of the iliopsoas muscle in haemophiliacs and patients on anticoagulants. Could this haematoma form after a trauma in a healthy athlete?

Case Presentation: We report a case of 16-year-old kickboxer with no previous history who had been complaining of the left groin for 3 weeks after being struck in the left iliac fossa.

The Importance of Pelvic Obliquity in Assessing Spinal Coronal Alignment: Normative Values, Demographic, and Radiographic Correlations.

Study Design: Prospective, cross-sectional study.

Objective: In a geographically diverse population of asymptomatic volunteers, we sought to report the incidence of pelvic obliquity (PO), establish normative values of PO across patient factors, and assess the correlation of PO with radiographic parameters.

Summary Of Background Data: PO is defined as the misalignment of the pelvis and can be assessed through several anatomic landmarks.

Cognitive and psychiatric signs revealing Sneddon syndrome: A case report.

Key Clinical Message: The diagnosis of Sneddon Syndrome should be considered in adults with young-onset dementia accompanied by neuropsychiatric signs and livedo racemosa. Magnetic resonance imaging and cerebral angiography are essential. A cutaneous biopsy may help in the diagnosis.

The Posterior Cranial Vertical Line: A Novel Radiographic Marker for Classifying Global Sagittal Alignment.

Objective: To define a novel radiographic measurement, the posterior cranial vertical line (PCVL), in an asymptomatic adult population to better understand global sagittal alignment.

Methods: We performed a multicenter retrospective review of prospectively collected radiographic data on asymptomatic volunteers aged 20-79. The PCVL is a vertical plumb line drawn from the posterior-most aspect of the occiput.

The Thoracolumbar Inflection Point in a Population of Asymptomatic Volunteers: A Multi-Ethnic Alignment Normative Study Cohort Study.

Study Design: Prospective cohort study.

Objectives: To show population variance in the Inflection Point (IP) and its role in defining maximum Thoracic Kyphosis (TK) and Lumbar Lordosis (LL).

Methods: 468 asymptomatic adult volunteers were included in the Multi-Ethnic Normative Alignment Study (MEANS).

Morphological description of sagittal lumbar spinal alignment using curve magnitude, span, and apex-the multiethnic alignment normative study (MEANS).

Background Context: Current definition of lumbar lordosis uses the L1-S1 angle. Prevailing classification of sagittal spinal morphology, derived from a young adult population, classifies the spine into four subtypes defined by their sacral slope (SS) and curve morphology.

Purpose: To describe physiological sagittal alignment of the lumbar spine across age groups using three main parameters that dictate the lumbar curve: angular magnitude, span, and apex.

Sagittal spinal alignment varies with an individual's race: results of the multi-ethnic alignment normative study (MEANS).

Purpose: Assess normative values of sagittal spinal and lower extremity alignment in asymptomatic volunteers of three difference races.

Methods: Asymptomatic volunteers between the ages of 18-80 years were enrolled prospectively and then analyzed retrospectively from six different centers. Volunteers included reported no significant neck or back pain, nor any known spinal disorder(s).

Early Identification of Sacroiliitis in Patients with Suspected Spondyloarthritis: A Challenging Task.

Objective: The purpose of this study was to assess the performance of computed tomography (CT) scan and magnetic resonance imaging (MRI) for detecting sacroiliitis in nonradiographic SpA (nr-SpA).

Methods: This cross-sectional monocentric double-blind study included 63 patients consulting for symptoms suggestive of SpA between February 2014 and February 2017. Patients with conventional radiographs showing a confirmed sacroiliitis (grade 3 or 4) were not included.

Unusual bone localization of sarcoidosis mimicking metastatic lesions: case report and review of literature.

Sarcoidosis is a multisystem disease of unknown origin. Diagnosis remains challenging, based on organ site involvement, histological confirmation of non-caseating granuloma and an appropriate clinical syndrome. Granulomatous bone involvement is rare and may be ignored because it is usually asymptomatic.

Cervical Inclination Angle: Normative Values in an Adult Multiethnic Asymptomatic Population.

Objective: The role of the craniocervical complex in spinal sagittal alignment has rarely been analyzed but it may play a fundamental role in postoperative mechanical complications. The aim of the study is to analyze the normative value of the cervical inclination angle (CIA) in an adult asymptomatic multiethnic population.

Methods: Standing full-spine EOS of adult asymptomatic volunteers from 5 different countries were analyzed.

Age- and Gender-based Global Sagittal Spinal Alignment in Asymptomatic Adult Volunteers: Results of the Multiethnic Alignment Normative Study (MEANS).

Study Design: Multicenter Cohort.

Objective: Assess normative values of sagittal spinal and lower extremity alignment in asymptomatic volunteers stratified by age and gender.

Summary Of Background Data: Our understanding of ideal sagittal alignment is still evolving.

Age and Gender Based Spinopelvic and Regional Spinal Alignment in Asymptomatic Adult Volunteers: Results of the Multi-Ethnic Alignment Normative Study (MEANS).

Background: Spinal alignment can have a significant impact on a patient's overall quality of life. Predicting the ideal sagittal spinal alignment of a specific individual is still a difficult task. The Multi-Ethnic Alignment Normative Study (MEANS) investigated skeletal alignment, including the spine and lower extremities, of the largest multi-ethnic cohort of asymptomatic adult volunteers.

Correlation analysis of the PI-LL mismatch according to the pelvic incidence from a database of 468 asymptomatic volunteers.

Purpose: Previous studies on adults with degenerative scoliosis (ADS) have been fixed the threshold of PI-LL mismatch less than 10° for achieving good clinical outcomes. Recent studies discussed that PI-LL mismatch should consider individual pelvic incidence (PI) and should be set first in a normal population. The purpose of this study is to assess the variability of PI-LL mismatch according to PI in an asymptomatic population.

Pelvic thickness, sex, ethnicity, and age affect pelvic incidence in healthy volunteers of Multi-Ethnic Alignment Normative Study (MEANS) database.

Background: The purpose of this study was to investigate the affecting factors on pelvic incidence (PI) and to test the hypothesis that PI changes even after skeletal maturity probably due to hypermobility of the sacroiliac joint using a large international multi-center database.

Methods: A prospective and cross-sectional healthy adult volunteers, ages 18-80 years, across 5 countries were used. Radiographic measurements included standard whole body alignment parameters.

Performances of single tube nested polymerase chain reaction and GeneXpert ultra on Formalin fixed paraffin embedded tissues in the diagnosis of tuberculous spondylodiscitis.

Introduction: Tuberculous Spondylodiscitis is the most common form of musculoskeletal tuberculosis. Molecular techniques on fresh tissues are proved to improve the diagnosis of tuberculous spondylodiscitis and to allow a rapid diagnosis to initiate the treatment and prevent neurological complications.

Objectives: The objective of the present study was to assess the diagnostic performances of single tube nested PCR and GeneXpert ultra in the diagnosis of tuberculous spondylodiscitis on formalin fixed paraffin embedded tissues.

The odontoid-CSVL distance in a global population of asymptomatic volunteers: normative values and implications for spinal coronal alignment.

Purpose: In a population of asymptomatic volunteers across 5 countries, we sought to: (a) establish normative values of the Odontoid-Central Sacral Vertical Line (OD-CSVL) across patient factors, and (b) assess correlations of OD-CSVL with other radiographic parameters.

Methods: A prospective, cross-sectional study of asymptomatic adult volunteers, ages 18-80 years, were enrolled across 5 countries (France, Japan, Singapore, Tunisia, United States) forming the Multi-Ethnic Alignment Normative Study (MEANS) cohort. Included volunteers had no known spinal disorder(s), no significant neck/back pain (VAS ≤ 2; ODI ≤ 20), and no significant scoliosis (Cobb ≤ 20°).

Atypical osteomalacia mimicking radiological features of spondyloarthritis: Never judge a book by its cover.

Longstanding osteomalacia, by its proliferative enthesopathic changes, may mimic the advanced features of SpA. Despite the typical radiological findings, the lack of response to anti-TNF should encourage clinicians to reconsider the diagnosis.

Socrative as a tool for increasing students learning.

Introduction: The integration of new technologies in the classrooms opens new possibilities for the teaching and learning process. Technologies such as student response system (Clicker). The benefits of using a student feedback system are highlighted in literature.