Background: Pelvic tilt (PT) is an important sagittal parameter to be restored the normal range in corrective surgery for spinopelvic malalignment. However, value of PT varies among patients. With introduction pelvic inclination angle (PIA), which subtended by vertical axis and line connecting anterior pubic tubercle superior iliac spine, we aimed determine whether PIA could reflect symptom severity values exist. Methods: The study cohort consisted patients with malalignment (patient group)...

It has been well documented that optimal sagittal alignment is highly correlated with good clinical outcomes in adult spinal deformity (ASD) surgery. However, it remains to be determined whether the benefit of appropriately corrected can maintained long term. Therefore, aim this study was investigate continues offer benefits over time regard and mechanical failure.

Retrospective study.The aim of this study was to investigate the long-term fate asymptomatic PJK focusing on elderly patients with sagittal imbalance by comparing and without PJK.Most previous studies demonstrated that does not negatively affect clinical outcome compared PJK. The question "will remain even in follow-up?" has been answered yet because results were based short follow-up duration.Patients >60 years who underwent four or more level fusions sacrum for followed up >5 years....

Objectives Oblique lateral interbody fusion is considered a useful surgical option for various lumbar degenerative diseases with favorable clinical results and few complications. However, outcomes following oblique stratified according to the preoperative diagnosis have not been fully evaluated in large cohort. The purpose of present study was evaluate disease identify differences when diagnosis. Methods All patients receiving were included current into four diagnostic groups: (i)...

Study Design. Retrospective study. Objective. To identify the risk factors for revision surgery among neurologically intact patients with proximal junctional failure (PJF) after adult spinal deformity (ASD) surgery. Summary of Background Data. PJF following long fusion ASD is a well-recognized complication that negatively affects clinical outcomes. However, not required every patient especially if does present neurologic deficit. Identifying necessary to determine who will need as well when...

Pedicle screw instrumentation (PSI) through posterior approach has been the mainstay of deformity correction for adolescent idiopathic scoliosis (AIS). However, changes in quantity paraspinal muscles after AIS surgery remained largely unknown. The aim this study was to investigate long-term follow-up muscle volume via a approach. Forty-two patients who underwent by were analyzed longitudinal assessment cross-sectional area (CSA) with minimum five-year follow-up. CSA measured using axial...

The safety and clinical usefulness of minimally invasive scoliosis surgery (MISS) has been reported in various studies. However, freehand pedicle screwing MISS remains technically challenging. purpose this study is to evaluate the accuracy screw placement using technique adolescent idiopathic (AIS) patients treated with compared conventional open (COSS).We included 76 who underwent deformity correction for AIS. Computed tomography scans were used assess violations divided into 2 groups...

Indirect decompression using oblique lateral interbody fusion (OLIF) improves spinal canal dimensions by reducing spondylolisthesis and restoring intervertebral disk height in patients with degenerative lumbar diseases. However, the clinical significance of these radiological improvements has not been fully evaluated literature. To examine relationship between outcomes following OLIF, authors prospectively studied 41 who underwent single-level OLIF percutaneous pedicle screw fixation for...

Since December 2019, the novel coronavirus (COVID-19) has infected people worldwide. Owing to its rapid spread, elective surgeries, including spine surgery, have been re-scheduled. We analyzed nationwide data investigate changes in volume of surgery during first two years pandemic. Nationwide from January 2016 2021 were obtained. compared total number patients who underwent and related medical expenses before COVID-19 In February September, was significantly smaller August, respectively....

Spinopelvic fixation (SPF) has been a challenge for surgeons despite the advancements in instruments and surgical techniques. C-arm fluoroscopy-guided SPF is widely used safe technique that utilizes tear drop view. The view an image of corridor from posterior superior iliac spine to anterior inferior (AIIS) pelvis. This study aimed define optimal using three-dimensional reconstruction computed tomography images.Three-dimensional reconstructions pelvises 20 individuals were carried out. By...

Study Design. A retrospective cohort, radiographic study. Objective. The aim of this study was to compare the progression scoliosis owing single hemivertebra (HV) during early childhood, according anteroposterior discordance obtained from three-dimensional computed tomography (3D-CT) studies. Summary Background Data. Previous studies have utilized 3D-CT for classification congenital spinal deformities and introduced concept two types deformity: unison discordant anomalies. However, there...

The lumbosacral (LS) junction has a higher nonunion rate than other lumbar segments, especially in long-level fusion. Nonunion at L5-S1 would result low back pain, spinal imbalance, and poor surgical outcomes. Although anterior column support been recommended to prevent LS fusion, fusion length requiring additional spinopelvic fixation (SPF) with not evaluated thoroughly. This study aimed determine the number of fused levels SPF by assessing interbody status using computed tomography (CT)...

Background/Objectives: This study aimed to identify the unique characteristics of neurogenic bladders and associated symptoms in patients with cervical or thoracic myelopathy using clinical surveys urodynamic studies (UDSs). Methods: Patients degenerative (DCM) (DTM) lower urinary tract (LUTSs) scheduled for decompressive surgery were prospectively enrolled. A UDS was performed one day preceding evaluate preoperative urological function. Subjective evaluated International Prostate Symptom...

Menarche has a significant impact on the progression of adolescent idiopathic scoliosis (AIS); however, studies in this area are insufficient. This study used large-scale school screening data to investigate relationship between menarcheal age and AIS, especially severity scoliosis.

To evaluate the clinical impact of intraoperative tranexamic acid administration in minimizing blood loss and transfusion requirements during minimally invasive scoliosis surgery (MISS).

Osteotomies are required for the mobilization of spinal segments in patients with revisional scoliosis surgery a fusion mass; however, only few techniques have shown efficacy and safety, their mid- long-term outcomes remain unelucidated. This study aimed to analyze posterior multilevel crack osteotomy (PMCO) technique mass.Data from 18 who underwent using PMCO between 2009 2015 had more than 5-year follow-up were retrospectively reviewed. The Cobb angle coronal sagittal balance parameters...

Heterotopic ossification in soft tissue or muscle is rare the pediatric and adolescent age group. Most cases are associated with musculoskeletal injury trauma to central nervous system. Here, we describe an patient without a history of lesions system who presented painful limp limited motion left hip. Investigations indicated unusually large heterotopic extending from inner aspect ilium down anterior part hip, highly likely have developed after unrecognized periacetabular pyomyositis...

Background: A single-stage correction for congenital scoliosis through a posterior-only approach is commonly used surgical technique. However, there are few studies on the treatment effect of posterior in patients with neglected scoliosis. Methods: Patients who underwent minimum follow-up 2 years were divided into three groups based age: Group (7−11 years), B (12−18 years) and C (>18 years). comparison surgical, radiological, clinical outcomes was performed groups. Results: The Cobb angle...