Machine Learning-based Cluster Analysis Identifies Three Unique Phenotypes of Patients With Adult Spinal Deformity With Distinct Clinical Profiles and Long-term Recovery Trajectory: A Development Study.

Study Design: A retrospective review of a prospective adult spinal deformity data.

Objective: To identify distinct patient clinical profiles and recovery trajectories in patients with adult spinal deformity (ASD).

Summary Of Background Data: Patients with ASD exhibit a diverse array of symptoms and significant heterogeneity in clinical presentations, posing challenges to precise clinical decision-making.

A rare case of acrodysostosis type 2 with PDE4D mutation in a young female: a case report.

Acrodysostosis (ADO) is a rare form of peripheral dysostosis characterized by skeletal malformations, growth delays, short stature, and distinctive facial features caused by in part by underdeveloped (hypoplasia) of facial bones. Skeletal dysplasia is specific and includes disproportional short stature with short extremities and brachydactyly, multiple cone-shaped epiphyses, scoliosis or kyphosis with spinal stenosis, and advanced bone maturation. Herein, we are highlighting a case that presented with clinical features such as brachydactyly, delayed milestone, growth delay, muscle weakness and nasal hypoplasia.

Preliminary study assessing the long-term surgical outcomes of TBX6-associated congenital scoliosis (TACS) patients using the propensity score matching method: exploring the clinical implications of genetic discoveries in congenital scoliosis.

Background: Compound inheritance of TBX6 accounts for approximately 10% of sporadic congenital scoliosis (CS) cases. Such cases are called TBX6-associated congenital scoliosis (TACS). TACS has been reported to have certain common clinical phenotypes.

An Inter- and Intra-Rater Agreement Assessment of Two Novel Classification Systems for Coronal Imbalance in Adult Scoliosis and Spine Deformity.

Objective: Coronal malalignment is a common feature of adult spinal deformity, and accurate classification is essential for diagnosis and treatment planning. However, variations in interpretation among clinicians can impact classification consistency. By assessing the reliability and applicability of these systems across different medical experts, this study seeks to establish a standardized approach to enhance clinical outcomes.

Difficulty of administration of nusinersen in complex-column spinal muscular atrophy: New alternative technique by means of cervical intrathecal access through an Ommaya reservoir.

Background: The study aimed to describe a new Ommaya reservoir implantation method in late-onset SMA patients, assessing its safety and effectiveness under standard clinical conditions.

Methods: Prospective observational study. Lumbar intrathecal access was unfeasible due to significant scoliosis and prior spinal surgeries with instrumentation.

Curve progression in non-surgically treated patients with idiopathic scoliosis: a cohort study with 40-year follow-up.

Background And Purpose:  Treatment of idiopathic scoliosis in childhood aims to prevent curve progression. It is generally accepted that curves > 50° have the highest risk of progression, but less well described is what happens with mild to moderate curves. The aim of this study was to assess long-term curve progression and health-related quality of life (HRQoL) and compare thoracic and thoracolumbar/lumbar (TL/L) curves.

Enhanced recovery after surgery for adolescent idiopathic scoliosis: a revised systematic review and meta‑analysis.

Purpose: Adolescent idiopathic scoliosis surgery (AIS) is often associated with high costs and significant recovery challenges. Enhanced recovery after surgery (ERAS) protocols aim to improve outcomes, reducing hospital stays and complications compared to traditional (TD) pathways. This study evaluates the impact of ERAS protocols on AIS treatment.

Using Technique and Technology to Improve Safety and Outcomes in AIS: A Review of 12,795 Screws in Pediatric Spine Deformity.

Study Design: Retrospective Cohort Study.

Objective: This study aimed to compare outcomes in AIS patients that underwent PSF using either freehand with occasional fluoroscopic assistance (FOFA), computer assisted surgery/navigation (CAS), or technique and technology (T&T).

Summary Of Background Data: Pedicle screw insertion in scoliosis is challenging due to abnormal pedicle morphology.

Analysis of the Biomechanical Effects of Vertebral Body Tethering with Apical Fusion.

Study Design: Biomechanical study by using a multi-body simulation approach.

Objective: Objectification of spinal biomechanics after Vertebral Body Tethering with and without Apical Fusion.

Summary Of Background Data: Vertebral body tethering, a motion preserving surgical technique for correction of adolescent idiopathic scoliosis, is increasingly being used for thoracolumbar curves.

Outcomes of Single-Sided Thoracic vs. Bilateral Thoracic and Lumbar Anterior Vertebral Body Tethering in Lenke 1 Curves with Lumbar C Modifier.

Study Design: Retrospective review of a prospectively collected single-center adolescent idiopathic scoliosis (AIS) database.

Objective: To evaluate the outcomes of single-sided thoracic anterior vertebral body tethering (VBT) versus bilateral thoracic/thoracolumbar VBT for the treatment of Lenke 1C type curves, as well as the outcomes of Lenke 1A/B curves compared to 1C curves.

Background: Lenke 1C curves can be successfully treated with selective thoracic fusion alone.

Identification of a novel frameshift variation in ANKRD11: a case report of KBG syndrome.

Background: KBG syndrome (KBGS, OMIM: 148050) is a rare genetic disorder characterized by macrodontia, short stature, skeletal abnormalities, and neurological manifestations. The objective of this study is to investigate a case of KBG syndrome caused by a novel frameshift mutation in ANKRD11.

Methods And Results: We present the case of an 18-year-old Chinese male exhibiting characteristic features including a triangular face, micrognathia, hypertelorism, macrodontia, bushy eyebrows, prominent ears, short stature, low hairline, delayed cognitive development, and scoliosis.

Hounsfield unit values are a better predictor than DXA T-score for adjacent vertebral fracture following balloon kyphoplasty.

Background: Hounsfield unit values (HU) are known to correlate with dual-energy X-ray absorptiometry (DXA), and they are gaining attention as a new method for assessing Bone mineral density (BMD) that is not affected by the limitations of DXA, such as degeneration, scoliosis, and vascular calcification. The purpose of this study was to compare the efficacy of HU and DXA T-scores in predicting adjacent vertebral fractures (AVF) following balloon kyphoplasty (BKP) using the same computed tomography and DXA at one institution.

Methods: The study included 84 cases (20 males, 64 females, mean age 79.

Evaluating Variability in Decision-Making Among Spine Surgeons Treating Adult Spine Deformity.

Background Context: Significant variability in the management of Adult Spinal Deformity (ASD) has been observed among spine surgeons worldwide. The variability among Canadian spine surgeons, a country with universal public healthcare, remains unknown.

Purpose: The study aims to evaluate areas of variability in the peri-operative optimization and surgical management of ASD among Canadian spine surgeons.

Identification of a de-novo variant of the MEGF10 gene associated with EMARDD.

Early-onset Myopathy, Areflexia, Respiratory Distress and Dysphagia (EMARDD) is a congenital neuromuscular disease with a progressive muscle weakness, respiratory failure, joint contractures, and scoliosis without any symptoms of functional brain anomalies caused by variants in the MEGF10 gene. Here, we report the clinical phenotype and genetic features of a Moroccan patient who carries a novel variant associated with EMARDD on the MEGF10 gene. The Whole Exome Sequencing analysis conducted on a 11 year old boy with respiratory and swallowing difficulties revealed the presence of the novel variant c.

Stochastic galvanic vestibular stimulation improves kinetic performance in adolescent idiopathic scoliosis during obstacle negotiation.

Vestibular dysfunction has been reported as a potential cause in adolescent idiopathic scoliosis (AIS). However, it remained unclear how stochastic galvanic vestibular stimulation (GVS) affected kinetic performance of patients with AIS. This study aimed to investigate the effect of stochastic GVS on ground reaction forces (GRF) measures during obstacle negotiation among patients with AIS.

Comparison of the natural course of clinical and radiologic features in 13 patients with TRPV4-related skeletal dysplasias.

Background: Heterozygous TRPV4 mutations cause a group of skeletal dysplasias characterized by short stature, short trunk, and skeletal deformities.

Objective: The aim of this study is to compare the natural history of clinical and radiologic features of patients with different TRPV4-related skeletal dysplasias.

Materials And Methods: Thirteen patients with a mutation in TRPV4 were included in the study, and 11 were followed for a median of 6.

2D and 3D Classification Systems for Adolescent Idiopathic Scoliosis: Clinical Implications and Technological Advances.

Classification systems for Adolescent Idiopathic Scoliosis (AIS) play an important role in guiding both surgical planning and conservative treatments. Traditional 2D classification systems, such as the Lenke, King and Lehnert-Schroth classifications, have been widely used for the clinical diagnosis and treatment of scoliosis. However, with the growing understanding of the three-dimensional nature of scoliosis and advancements in 3D reconstruction technologies, 3D classification systems are gaining increasing attention.

Coronal alignment in normal individuals and moderate scoliosis: Normative values, variation with age and comparison with sagittal alignment.

Introduction: Global coronal alignment is mainly assessed by C7 plumbline and central sacral vertical line (CSVL), pelvic obliquity and shoulder alignment. A detailed analysis is mandatory when treating spinal deformity. It remains unclear to what extent mild scoliosis influences global coronal alignment.

Scoliosis in adult Type 1 Chiari malformation with syringomyelia patients: from pathogenesis to treatment.

The pathogenesis of type I Chiari malformation (CIM) is complex and remains unclear. The theory of posterior cranial fossa incompatibility has gained widespread acceptance in recent years. In the patients with CIM combined with syringomyelia, scoliosis is a common occurrence, with severe cases often leading to complications that necessitate surgical intervention.

Thirty years later: the lingering effects of adolescent idiopathic scoliosis surgery with third-generation implants on quality of life.

Purpose: To determine patient-reported clinical status in a cohort of patients operated on during adolescence for adolescent idiopathic scoliosis (AIS) using Cotrel-Dubousset instrumentation after a minimum follow-up (FU) of 25 years.

Methods: Multicentric cross-sectional observational study. We assessed the clinical status of patients using the lumbar-pain numeric rating scale (NRS), ODI, SRS-22r, SF-36, and EQ-5D-5L.

Selective Direct Vertebral Rotation Instrumentation for the Correction of Adolescent Idiopathic Scoliosis Lenke 5 Curve.

Background: Direct vertebral rotation (DVR) effectiveness in improving scoliosis correction outcomes remains unclear and requires further investigation.

Purpose: This study aimed to evaluate the effectiveness of short and extended fusion techniques using en-bloc DVR in correcting adolescent idiopathic scoliosis (AIS) classified as Lenke 5 curve (5C).

Materials And Methods: This retrospective study included 90 randomly selected AIS patients with Lenke 5C who underwent posterior spinal instrumentation surgery using en-bloc DVR between 2014 and 2021.

The influence of body mass index on efficacy and outcomes of percutaneous transforaminal endoscopic surgery (PTES) for the treatment of lumbar degenerative diseases: a retrospective cohort study.

Background: To investigate and quantify the influence of body mass index (BMI) on the efficacy and outcomes of percutaneous transforaminal endoscopic surgery (PTES), a novel minimally invasive surgical technique in the treatment of lumbar disc herniation (LDH).

Methods: A total of 55 patients suffering from single-level LDH with or without high iliac crest, scoliosis or calcification, who underwent PTES in our department from January 2019 to December 2021 were retrospectively analyzed. Patients were divided into two groups according to BMI.

Characterization of dynamic features in the walking videos of patients with adolescent idiopathic scoliosis based on moving entropy.

Adolescent idiopathic scoliosis (AIS), which typically occurs in patients between the ages of 10 and 18, can be caused by a variety of reasons, and no definitive cause has been found. Early diagnosis of AIS or timely recognition of progression is crucial for the prevention of spinal deformity and the reduction of the risk of surgery or postponement. However, it remains a significant challenge.

Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis.

There is limited knowledge on diffusing capacity in scoliosis patients. It remains to be determined if impaired pulmonary diffusing capacity is mostly influenced by reduced alveolar-capillary membrane diffusing capacity (D), reduced pulmonary capillary blood volume (V) or both. This study aims to report findings from dual test gas pulmonary diffusing capacity for carbon monoxide and nitric oxide (D) with quantification of pulmonary diffusing capacity for carbon monoxide corrected for haemoglobin with a five s breath-hold (D) and nitric oxide with a five s breath-hold (D), D and V.