899 results match your criteria Scheuermann Kyphosis


SARS-CoV-2 infection of the oral cavity and saliva.

Nat Med 2021 Mar 25. Epub 2021 Mar 25.

Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Despite signs of infection-including taste loss, dry mouth and mucosal lesions such as ulcerations, enanthema and macules-the involvement of the oral cavity in coronavirus disease 2019 (COVID-19) is poorly understood. To address this, we generated and analyzed two single-cell RNA sequencing datasets of the human minor salivary glands and gingiva (9 samples, 13,824 cells), identifying 50 cell clusters. Using integrated cell normalization and annotation, we classified 34 unique cell subpopulations between glands and gingiva. Read More

View Article and Full-Text PDF

Hepatitis C-associated focal proliferative glomerulonephritis in an aviremic recipient of a hepatitis C-positive antibody donor liver.

Am J Transplant 2021 Mar 15. Epub 2021 Mar 15.

Section of Transplant Surgery, Ochsner Health, New Orleans, Louisiana.

Shortage of organs for liver transplantation (LT) and the availability of highly efficient pan-genotypic direct-acting antivirals (DAAs) against hepatitis C virus (HCV) have allowed the use of livers from HCV-positive antibody/negative nucleic acid test donors (dHCV Ab+/NAT-) into aviremic HCV recipients over the last few years. We report the case of a patient who received an LT from an HCV Ab+/NAT- donor and, after HCV viremic conversion, developed a nephrotic syndrome due to a focal proliferative glomerulonephritis early after LT. Patient's renal function and proteinuria resolved after successful treatment with DAAs. Read More

View Article and Full-Text PDF

Negligible impact of SARS-CoV-2 variants on CD4 and CD8 T cell reactivity in COVID-19 exposed donors and vaccinees.

bioRxiv 2021 Mar 1. Epub 2021 Mar 1.

The emergence of SARS-CoV-2 variants highlighted the need to better understand adaptive immune responses to this virus. It is important to address whether also CD4+ and CD8+ T cell responses are affected, because of the role they play in disease resolution and modulation of COVID-19 disease severity. Here we performed a comprehensive analysis of SARS-CoV-2-specific CD4+ and CD8+ T cell responses from COVID-19 convalescent subjects recognizing the ancestral strain, compared to variant lineages B. Read More

View Article and Full-Text PDF

The effect of pedicle subtraction osteotomy for the correction of severe Scheuermann thoracolumbar kyphosis on sagittal spinopelvic alignment.

BMC Musculoskelet Disord 2021 Feb 10;22(1):165. Epub 2021 Feb 10.

Departments of Orthopaedic Surgery, Peking Union Medical College Hospital (PUMCH), Peking Union Medical College and Chinese Academy of Medical Sciences; State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital(PUMCH), Peking Union Medical College and Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan Hutong, Beijing, 100730, People's Republic of China.

Purpose: To analyze how pedicle subtraction osteotomy (PSO) treatment of severe Scheuermann thoracolumbar kyphosis (STLK) using pedicle screw instrumentation affects sagittal spinopelvic parameters.

Background: The medical literature on the post-surgical effects of treatments such as Ponte osteotomy is limited, but suggests few effects on spinopelvic profiles. Currently, there is no research regarding changes in sagittal spinopelvic alignment upon PSO treatment in STLK patients. Read More

View Article and Full-Text PDF
February 2021

Alleles of a wall-associated kinase gene account for three of the major northern corn leaf blight resistance loci in maize.

Plant J 2021 Apr 24;106(2):526-535. Epub 2021 Mar 24.

Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, Zurich, CH-8008, Switzerland.

Northern corn leaf blight, caused by the fungal pathogen Setosphaeria turcica (anamorph Exserohilum turcicum), is one of the most devastating foliar diseases of maize (Zea mays). Four genes Ht1, Ht2, Ht3 and Htn1 represent the major sources of genetic resistance against the hemibiotrophic fungus S. turcica. Read More

View Article and Full-Text PDF

Reliability and validity of a kyphosis-specific spinal appearance questionnaire.

Spine Deform 2021 Jan 29. Epub 2021 Jan 29.

Therapy Services, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA.

Purpose: Hyperkyphosis, including Scheuermann and postural kyphosis, is associated with decreased perceived cosmesis and well being. No patient reported outcome questionnaire specific to kyphosis exists. We sought to assess the internal consistency, test-retest reliability and concurrent validity of a new Kyphosis-specific Spinal Appearance Questionnaire (K-SAQ). Read More

View Article and Full-Text PDF
January 2021

Length of stay, readmission, and mortality after primary surgery for pediatric spinal deformities: a 10-year nationwide cohort study.

Spine J 2021 Apr 8;21(4):653-663. Epub 2021 Jan 8.

Spine Unit, Department of Orthopedic Surgery, Rigshospitalet, University of Copenhagen, Blegdamsvej, 2100 Copenhagen, Denmark.

Background Context: Extended length of stay (extLOS) and unplanned readmissions after first time pediatric spinal deformity surgery are a considerable challenge to both the patient and the health-care system. To our knowledge, only a limited number of nationwide studies reporting short-term comorbidity with complete follow-up exist.

Purpose: The purpose of this study was to identify the postoperative complications leading to extLOS, readmissions, and mortality within 90 days after surgery. Read More

View Article and Full-Text PDF

Low back pain in children and adolescents: Real life experience of 106 patients.

North Clin Istanb 2020 17;7(6):603-608. Epub 2020 Nov 17.

Department of Physical Medicine and Rehabilitation, University of Health Sciences, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey.

Objective: To analyze the demographic data, etiologies and risk factors of 106 children and adolescents with low back pain (LBP) who applied to our clinic.

Methods: The medical records of patients with low back pain under 18 presenting to our clinic in 2014-2018 were examined retrospectively. Patients' demographic data, physical examination findings, laboratory and imaging results, and risk factors for low back pain were evaluated; diagnosis and treatment modalities were recorded. Read More

View Article and Full-Text PDF
November 2020

The surgical treatment of severe Scheuermann's kyphosis.

Bone Joint J 2021 Jan;103-B(1):148-156

Scottish National Spine Deformity Centre, Royal Hospital for Sick Children, Edinburgh, UK.

Aims: To report the surgical outcome of patients with severe Scheuermann's kyphosis treated using a consistent technique and perioperative management.

Methods: We reviewed 88 consecutive patients with a severe Scheuermann's kyphosis who had undergone posterior spinal fusion with closing wedge osteotomies and hybrid instrumentation. There were 55 males and 33 females with a mean age of 15. Read More

View Article and Full-Text PDF
January 2021

Posterior-only versus combined anterior-posterior fusion in Scheuermann disease: a systematic review and meta-analysis.

J Neurosurg Spine 2020 Dec 25:1-9. Epub 2020 Dec 25.

1Department of Neurosurgery, Seoul National University Hospital.

Objective: Combined anterior-posterior (AP) surgery is considered the gold standard for surgical treatment of Scheuermann kyphosis. There are trends toward posterior-only (PO) surgery for correcting this deformity because of the availability of multisegmental compression instruments and posterior shortening osteotomy. To date, surgical strategies for Scheuermann kyphosis remain controversial. Read More

View Article and Full-Text PDF
December 2020

Acute flaccid myelitis: cause, diagnosis, and management.

Lancet 2021 01 23;397(10271):334-346. Epub 2020 Dec 23.

Department of Infectious Diseases, Hospital de Niños "Ricardo Gutiérrez", Buenos Aires, Argentina.

Acute flaccid myelitis (AFM) is a disabling, polio-like illness mainly affecting children. Outbreaks of AFM have occurred across multiple global regions since 2012, and the disease appears to be caused by non-polio enterovirus infection, posing a major public health challenge. The clinical presentation of flaccid and often profound muscle weakness (which can invoke respiratory failure and other critical complications) can mimic several other acute neurological illnesses. Read More

View Article and Full-Text PDF
January 2021

Revision risk after pediatric spinal deformity surgery: a nationwide study with 2-year follow-up.

Spine J 2021 Apr 17;21(4):642-652. Epub 2020 Dec 17.

Spine Unit, Department of Orthopedic Surgery, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark.

Background Context: Revision risk after pediatric spine surgery is not well established and varies between deformity etiologies.

Purpose: To report the 2-year revision risk following surgery for primary pediatric spinal deformity in a nationwide cohort and to evaluate potential risk factors and reasons for revision surgery.

Design: Retrospective nationwide cohort study. Read More

View Article and Full-Text PDF

Multi-Omic Data Integration Allows Baseline Immune Signatures to Predict Hepatitis B Vaccine Response in a Small Cohort.

Front Immunol 2020 30;11:578801. Epub 2020 Nov 30.

Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada.

Background: Vaccination remains one of the most effective means of reducing the burden of infectious diseases globally. Improving our understanding of the molecular basis for effective vaccine response is of paramount importance if we are to ensure the success of future vaccine development efforts.

Methods: We applied cutting edge multi-omics approaches to extensively characterize temporal molecular responses following vaccination with hepatitis B virus (HBV) vaccine. Read More

View Article and Full-Text PDF
November 2020

The variability in location of the most prominent points on the posterior torso of those without abnormal surface topography, those with Adolescent Idiopathic Scoliosis and those with Scheuermann's Kyphosis: a seven year longitudinal analysis.

J Anat 2021 May 11;238(5):1244-1254. Epub 2020 Dec 11.

Institute of Clinical Science, University of Birmingham, Birmingham, UK.

The correction of adolescent scoliosis involves the recreation of torso symmetry. A symmetrical torso has equivalent areas of shape on either side of the midline. The posterior torso has two areas of prominence, known as the 'most prominent points' on either side of the midline which can be used as reference points to measure symmetry of the posterior torso. Read More

View Article and Full-Text PDF

Epidemiology and Sequence-Based Evolutionary Analysis of Circulating Non-Polio Enteroviruses.

Microorganisms 2020 Nov 25;8(12). Epub 2020 Nov 25.

Department of Informatics, J. Craig Venter Institute, La Jolla, CA 92037, USA.

Enteroviruses (EVs) are positive-sense RNA viruses, with over 50,000 nucleotide sequences publicly available. While most human infections are typically associated with mild respiratory symptoms, several different EV types have also been associated with severe human disease, especially acute flaccid paralysis (AFP), particularly with endemic members of the EV-B species and two pandemic types-EV-A71 and EV-D68-that appear to be responsible for recent widespread outbreaks. Here we review the recent literature on the prevalence, characteristics, and circulation dynamics of different enterovirus types and combine this with an analysis of the sequence coverage of different EV types in public databases (e. Read More

View Article and Full-Text PDF
November 2020

Systems Biology Methods Applied to Blood and Tissue for a Comprehensive Analysis of Immune Response to Hepatitis B Vaccine in Adults.

Front Immunol 2020 4;11:580373. Epub 2020 Nov 4.

Department of Radiology, BC Children's Hospital, Vancouver, BC, Canada.

Conventional vaccine design has been based on trial-and-error approaches, which have been generally successful. However, there have been some major failures in vaccine development and we still do not have highly effective licensed vaccines for tuberculosis, HIV, respiratory syncytial virus, and other major infections of global significance. Approaches at rational vaccine design have been limited by our understanding of the immune response to vaccination at the molecular level. Read More

View Article and Full-Text PDF
November 2020

Two-stage anterior and posterior fusion versus one-stage posterior fusion in patients with Scheuermann's kyphosis.

Bone Joint J 2020 Oct;102-B(10):1368-1374

Spinal Deformity Unit, Royal National Orthopaedic Hospital, Stanmore, UK.

Aims: Whether a combined anteroposterior fusion or a posterior-only fusion is more effective in the management of patients with Scheuermann's kyphosis remains controversial. The aim of this study was to compare the radiological and clinical outcomes of these surgical approaches, and to evaluate the postoperative complications with the hypothesis that proximal junctional kyphosis would be more common in one-stage posterior-only fusion.

Methods: A retrospective review of patients treated surgically for Scheuermann's kyphosis between 2006 and 2014 was performed. Read More

View Article and Full-Text PDF
October 2020

Infection Recurrence in Instrumented Spinal Fusion in Children.

Global Spine J 2020 Aug 12:2192568220935818. Epub 2020 Aug 12.

Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina.

Study Design: Level 4 retrospective case series.

Objectives: Surgical site infection (SSI) is one of the main complications of instrumented spinal fusion. The aim of our study was to evaluate infection recurrence (same bacteria) or reinfection (different bacteria) in posterior spinal fusion in children. Read More

View Article and Full-Text PDF

Comparison of proximal junctional kyphosis rate according to fusion level.

J Orthop 2020 Sep-Oct;21:337-339. Epub 2020 Jul 8.

Marmara University Hospital Fevzi Çakmak Mahallesi Muhsin Yazıcıoğlu cad NO 10 PK, 34899 Pendik, İstanbul.

Introduction: There are two main accepted reasons of Proximal junctional kyphosis (PJK) after Scheuermann's kyphosis treatment; overcorrection of initial curve and fusion that is too short proximally. The purpose of this study was to evaluate the incidence of PJK in patients who have been previously treated for Schuermann's kyphosis with a curve exceeding 70° and corrected under 40° according to proximal fusion level T2 or T3.

Methods: We retrospectively evaluated 30 patients treated for Schuermann's kyphosis with single stage posterior only procedure. Read More

View Article and Full-Text PDF

Under-contouring of rods: a potential risk factor for proximal junctional kyphosis after posterior correction of Scheuermann kyphosis.

J Neurosurg Spine 2020 Aug 7:1-8. Epub 2020 Aug 7.

2Department of Spine Surgery, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, People's Republic of China.

Objective: Scheuermann kyphosis (SK) could require surgical treatment in certain situations. A posterior reduction is the most widespread treatment so far, although the development of proximal junctional kyphosis (PJK) is one of the possible complications of this procedure. The contour of the proximal part of the rod could influence the occurrence of PJK in SK patients. Read More

View Article and Full-Text PDF

Candidate Targets for Immune Responses to 2019-Novel Coronavirus (nCoV): Sequence Homology- and Bioinformatic-Based Predictions.

SSRN 2020 Feb 25:3541361. Epub 2020 Feb 25.

Division of Vaccine Discovery.

Effective countermeasures against the recent emergence and rapid expansion of the 2019-Novel Coronavirus (2019-nCoV) require the development of data and tools to understand and monitor viral spread and immune responses. However, little information about the targets of immune responses to 2019-nCoV is available. We used the Immune Epitope Database and Analysis Resource (IEDB) resource to catalog available data related to other coronaviruses, including SARS-CoV, which has high sequence similarity to 2019-nCoV, and is the best-characterized coronavirus in terms of epitope responses. Read More

View Article and Full-Text PDF
February 2020

Systematic review of the treatment options for pericardial effusions in dogs.

Vet Surg 2021 Jan 17;50(1):20-28. Epub 2020 Jul 17.

Veterinary Medical Library, University of Minnesota, Saint Paul, Minnesota.

Objective: To evaluate the evidence for the conservative and surgical management of pericardial effusions for neoplastic and idiopathic etiologies in dogs.

Study Design: Systematic review.

Sample Population: Peer-reviewed English-language articles describing the treatment and outcome of naturally occurring pericardial effusion in domestic dogs. Read More

View Article and Full-Text PDF
January 2021

Back Pain in Children and Adolescents.

Am Fam Physician 2020 07;102(1):19-28

Fairview Sports and Orthopedic Care, Blaine, MN, USA.

Back pain is a relatively common presenting symptom in children and adolescents. Typical causes include muscle strain or spasm, spinal deformities (e.g. Read More

View Article and Full-Text PDF

Comparison of the accuracy of the cannulated pedicle screw and the classical pedicle screw in the treatment of Scheuermann's kyphosis: A retrospective study.

Jt Dis Relat Surg 2020 23;31(2):201-208. Epub 2020 Apr 23.

Ağrı Devlet Hastanesi Ortopedi ve Travmatoloji Kliniği, 04200 Ağrı, Türkiye.

Objectives: This study aims to investigate if use of cannulated pedicle screw (CPS) in the dysplastic pedicles in Scheuermann's kyphosis (SK) increases the accuracy rate of the screw and reduces screw-related complications.

Patients And Methods: This retrospective study included 21 patients (11 males, 10 females; mean age 19.1 years; range, 13 to 22 years) (550 screws) who received correction with pedicle screws due to SK deformity between May 2015 and January 2019. Read More

View Article and Full-Text PDF
November 2020

Unbiased analysis of peripheral blood mononuclear cells reveals CD4 T cell response to RSV matrix protein.

Vaccine X 2020 Aug 21;5:100065. Epub 2020 Apr 21.

David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, United States.

Respiratory syncytial virus (RSV) is the most important cause of respiratory tract illness especially in young infants that develop severe disease requiring hospitalization, and accounting for 74,000-126,000 admissions in the United States (Rezaee et al., 2017; Resch, 2017). Observations of neonatal and infant T cells suggest that they may express different immune markers compared to T-cells from older children. Read More

View Article and Full-Text PDF

Scheuermann's Kyphosis: a 39-year follow-up from diagnosis in non-operated patients.

Eur Spine J 2020 08 18;29(8):2091-2099. Epub 2020 May 18.

Spine Unit, Department of Orthopedic Surgery, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark.

Purpose: To investigate the impact of Scheuermann's Kyphosis (SK) on health -related quality of life (HRQOL) in adult patients and compare it to the general population. Moreover, to assess whether location of the kyphosis affects pelvic parameters, HRQOL, and pulmonary function.

Methods: Of a cohort of 251 patients seen for a pediatric spinal deformity in the years 1972-1982 in our outpatient clinic, 55 had radiologically verified SK. Read More

View Article and Full-Text PDF

Platelets Restrict the Oxidative Burst in Phagocytes and Facilitate Primary Progressive Tuberculosis.

Am J Respir Crit Care Med 2020 09;202(5):730-744

Immunology Department and.

Platelets are generated in the capillaries of the lung, control hemostasis, and display immunological functions. Tuberculosis primarily affects the lung, and patients show platelet changes and hemoptysis. A role of platelets in immunopathology of pulmonary tuberculosis requires careful assessment. Read More

View Article and Full-Text PDF
September 2020

Intraoperative Prone Radiographs During Scheuermann Kyphosis Correction Closely Estimate Standing Thoracic and Lumbar Parameters at 2 Years.

J Pediatr Orthop 2020 Nov/Dec;40(10):581-586

Texas Scottish Rite Hospital for Children, Dallas, TX.

Background: In patients with Scheuermann kyphosis (SK) undergoing posterior spinal fusion with instrumentation (PSFI), intraoperative lateral radiographs assess deformity correction in the prone position. The relationship between thoracic and (partially un-instrumented) lumbar parameters on prone intraoperative versus standing postoperative radiographs is unknown.

Methods: Forty-five consecutive patients with SK who underwent PSFI between 2007 and 2014 were reviewed. Read More

View Article and Full-Text PDF