Study Design. A prospective randomized clinical trial. Objective. To compare the impact of robotic guidance in a minimally invasive spine surgery (MIS) to fluoroscopy-guided open approach lumbar fusions. Summary Background Data. MIS requires protracted learning curve and excessively exposes patient surgical team harmful radiation. Robotic-guidance has been shown improve accuracy radiation most studies, but there is conflicting data. Methods. Patients indicated undergo 1 or 2 level spinal...

In Brief Study Design. Retrospective matched-cohort comparative study. Objective. Compare radiographical outcomes after the use of a standard 2-rod construct (2-RC) versus multiple-rod (multi-RC) across 3-column osteotomy sites in matched cohort with severe kyphosis and/or scoliosis minimum 2-year follow-up. Summary Background Data. Three-column osteotomies are used for treating spinal deformities, typically 2-RC highly unstable site. Methods. Between 1996 and 2010, patients undergoing by...

Clinical, radiographic, and outcomes assessments, focusing on complications, were performed in patients who underwent pedicle subtraction osteotomy (PSO) to assess correction effectiveness, fusion stability, procedural safety, neurological outcomes, complication rates, overall patient outcomes.We analyzed data obtained from 13 consecutive PSO-treated presenting with fixed sagittal imbalances 1999 2006. A single spine surgeon all operations. The median follow-up period was 73 months (range...

Retrospective study.To assess the relationship between sagittal alignment of cervical spine and patient-reported health-related quality-of-life scores following multilevel posterior fusion, to explore whether an analogous exists in using T1 slope minus C2-C7 lordosis (T1S-CL).A recent study demonstrated that, similar thoracolumbar spine, severity disability increases with malalignment reconstruction surgery.From 2007 2013, 38 consecutive patients underwent fusion for stenosis, myelopathy,...

We sought to determine the surgical treatment and functional outcome identify predictors of survival in a retrospective cohort patients with spinal cord ependymoma using data collected from Korea Spinal Oncology Research Group database. The regarding 88 who had been surgically treated for histologically confirmed intramedullary extramedullary January 1989 December 2009 were retrospectively reviewed. Histopathological examination revealed myxopapillary 24 patients, 61 anaplastic 3 patients....

A comparative case-control study.The aim of this study was to quantify the degree paraspinal muscle changes in degenerative lumbar kyphosis (DLK) patients using magnetic resonance imaging and computed tomography scanning.Although pathophysiology DLK is not completely understood, extensive degeneration weakness extensor muscles are thought underlie condition most patients. However, there no ideal method fat infiltration atrophy with DLK.The group comprised 20 healthy volunteers. The...

Intervention comparison study.To assess postoperative cervical lordosis, clinical outcome, and progression of ossification the posterior longitudinal ligament (OPLL) in patient spondylotic myelopathy (CSM) by OPLL.The approach is usually used for multilevel (≥3) CSM decided based on lordosis instability. OPLL, 1 cause CSM, makes decreased neck motion progressed motion. In OPLL patients, it may be asked whether motion-preserving surgery still helpful.We reviewed 57 patients who underwent 3...

Study Design: A retrospective cohort-nested longitudinal study. Objective: To evaluate radiologic and clinically functional outcomes after single-level anterior cervical discectomy fusion (ACDF) using 3 different construct systems applying an accurate reliable methodology. Summary of Background Data: ACDF is established procedure that uses systems: cage alone (CA), iliac tricortical bone block with plate (IP), (CP). The outcome a previous study quite did not correlate experimental studies....

Cervical alignment as a concept has come to the forefront for spine deformity research in last decade. Studies on cervical sagittal started from normative data, and expanded into correlation with global balance, prognosis of various conditions, outcomes surgery, definition classification deformity, prediction targets ideal reconstruction. Despite recent robust efforts, normal continues elude us. Further, many studies continue view continuation thoracolumbar do not take account biomechanical...

In the last 20 years, sagittal alignment and balance of spine have become one most important issues in field surgery. Recent studies emphasize that are more for health-related quality life. The understanding normal abnormal is necessary diagnosis appropriate treatment adult spinal deformity (ASD), we will discuss currently used classification ASD, parameters essential deformity, compensatory actions to maintain balance, relationship between clinical symptoms. Furthermore, also recently...

Study Design. Retrospective study. Objective. To assess the long-term relationship between sagittal alignment of cervical spine and patient-reported health-related quality-of-life (HRQOL) scores after multilevel posterior fusion, to explore whether an analog T1 slope minus C2-C7 lordosis (‘T1S–CL’) impacts on patients’ clinical outcomes. Background. A 6-month follow-up study demonstrated that, similar thoracolumbar spine, severity disability increases with malalignment reconstruction...

Objective The incidence of spontaneous spinal epidural hematoma (SSEH) is rare. Patients with SSEH, however, present disabling neurologic deficits. Clinical outcomes are variable among patients. To evaluate the adequate treatment method according to initial patients' neurological status and clinical outcome comparison variables affecting outcome. Methods We included 15 patients suffered from SSEH. were divided into two groups by method. Initial assessed American Spinal Injury Association...

BackgroundDespite the firmly established occupational risk of exposure to X-rays, they are used extensively in spine surgeries. Shielding by lead aprons is most common protective practice. We quantified level their radiation blocking ability a real-life setting.MethodsSingle-center, prospective, randomized study adult patients with degenerative lumbar disorders, scheduled undergo posterior interbody fusion. Instrumentation was performed either robot-assisted, minimally invasive approach (RO)...

Spinal deformity surgery has the potential risk of massive blood loss. To reduce surgical bleeding, use tranexamic acid (TXA) became popular in spinal surgery, recently. The purpose this study was to determine effectiveness intra-operative TXA bleeding and transfusion requirements surgery.A total 132 consecutive patients undergoing multi-level posterior segmental instrumented fusion (≥5 levels) were analyzed retrospectively. Primary outcome measures included intraoperative estimated loss...

A rigid spino-pelvic fixation to anchor long constructs is crucial maintain the stability of fusion in spinal deformity surgery. Besides obtaining immediate and proper biomechanical strength constructs, S2 alar-iliac (S2AI) screws have some more advantages. Four Korean fresh-frozen human cadavers were procured. Free hand S2AI screw placement performed using anatomic landmarks. The starting point located at midpoint between S1 foramen 2 mm medial lateral sacral crest. Gearshift was advanced...