Computed tomography-based bronchial tree three-dimensional reconstruction and airway resistance evaluation in adolescent idiopathic scoliosis

AbstractPurposeTo investigate airway development and airway resistance by computed tomographic three-dimensional (3D) reconstruction of the bronchial tree in patients with adolescent idiopathic scoliosis (AIS). We evaluated factors predicting postoperative respiratory complications to provide timely treatment, prevent complications, and improve operative and anesthetic safety.MethodsFrom August 2015 to August 2017, 53 AIS patients with a mean age of 15.4  years (range 10–20 years) were included in this study. Scoliotic parameters on radiographs were analyzed. Airway resistance was obtained by pulmonary function testing. All patients’ pulmonary bronchial trees were 3D-reconstructed via chest thin layer computed tomography to explore the correla tion between the spinal–thoracic deformity parameters and airway resistance.ResultsCorrelations between scoliotic parameters and airway development parameters were not statistically significant (P  >  0.05). The scoliotic parameters such as Cobb angle, apical vertebral translation, rotation angle to sagittal plane, rotation angle to middle line, and apical vertebral body–rib ratio (AVB-R) were positively correlated with tracheal bifurcation angle (R2: 0.429, 0.374, 0.430, 0.504, and 0.414, respectively;P  
Source: European Spine Journal - Category: Orthopaedics Source Type: research

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This study was conducted to measure intraoperative radiation to patients in freehand technique, evaluate screw-related complications and compare radiation values to published studies using navigation techniques.MethodsRetrospective analysis of prospectively collected data of 73 patients with idiopathic scoliosis, who underwent surgical correction with pedicle screw dual-rod system. Evaluated parameters were age, effective radiation dose (ED), fluoroscopy time, number of fused segments, correction and complications. Parameters were compared with regarding single thoracic curve (SC) and double thoracic and lumbar curves (DC)...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
Authors: Kobayashi K, Ando K, Nakashima H, Machino M, Morozumi M, Kanbara S, Ito S, Inoue T, Yamaguchi H, Mishima K, Ishiguro N, Imagama S Abstract Study Design: Single-center retrospective study in pediatric patients. Purpose: The purpose of the study was to investigate the effects of the presence and severity of leg-length discrepancy (LLD) on scoliosis in children. Overview of Literature: LLD is a common orthopedic problem that can result in standing imbalance, low back pain, and stress fractures. It may cause structural changes in the spine over time, but the exact effect of LLD on scoliosis is unknown....
Source: Asian Spine Journal - Category: Orthopaedics Tags: Asian Spine J Source Type: research
AbstractIntroductionPrimary degenerative scoliosis represents a new scoliosis developing in patients with no prior history of spinal curvature. Researchers sought to determine the prevalence of this type of scoliosis.MethodsMEDLINE, Embase, CINAHL, Web of Science and PubMed were searched from inception to 28th March, 2018. Studies that assessed adults from the general population for scoliosis using imaging techniques were included. Studies were included only if the study authors had excluded participants with previously diagnosed scoliosis and/or spinal disorders. Mixed-effects logistic-regression was used to establish an ...
Source: European Spine Journal - Category: Orthopaedics Source Type: research
Abstract OBJECTIVE: The aim of this study was to investigate the short-term effects of scapular repositioning using an elastic taping technique on the three-dimensional (3-D) shoulder and thoracic kinematics during various activities of daily living (ADLs) in adolescents with idiopathic scoliosis (IS). METHODS: Shoulder and spine kinematics during five ADL movement tasks were assessed in 24 adolescents with IS (3 males and 21 females; mean age: 15.8 years; age range: 14-17 years) before and 15 min after elastic scapular taping. All the participants had a moderate curve magnitude (Cobb angle: 20°-45°),...
Source: Acta Orthopaedica et Traumatologica Turcica - Category: Orthopaedics Authors: Tags: Acta Orthop Traumatol Turc Source Type: research
Conclusion. This is the first data-driven analysis designed to relate KFS patient phenotypes to surgical intervention and provides important insight that may inform targeted follow-up regimens and surgical decision-making. Level of Evidence: 3
Source: Spine - Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research
Study Design. A prospective multicenter study. Objective. To evaluate the effects of sparing lumbar motion segments on spinal mobility and Scoliosis Research Society-22 scores at 10 years after spinal fusion for major thoracic adolescent idiopathic scoliosis (AIS). Summary of Background Data. In surgical correction for major thoracic AIS, the long-term benefits of sparing lumbar motion segments remain unclear. Methods. A prospective multicenter registry was reviewed and patients with major thoracic AIS (Lenke types 1–4) and availability of both preoperative and 10-year postoperative mobility data were incl...
Source: Spine - Category: Orthopaedics Tags: DEFORMITY Source Type: research
Study Design. Prospective experimental study with on-site simulation. Objective. To compare the accuracy and efficiency of different techniques for pedicle screw instrumentation (PSI). Summary of Background Data. Improving the safety and efficiency of PSI is a critical step to reduce the complication rates and the cost of scoliosis surgery. Innovative operative techniques for PSI have shown to safely improve efficiency, thereby reducing cost. Surgical simulation is a valuable tool to study different operative techniques. Methods. Five spine fellows instrumented 20 simulation models of a scoliotic spine with 10 p...
Source: Spine - Category: Orthopaedics Tags: SURGERY Source Type: research
ConclusionsTc-MEP and SSEP monitoring is feasible, particularly when Tc-MEPs are recorded from the abductor hallucis muscle in patients with DMD. Similar TMS/CMAP and Tc-MEP/CMAP ratios show that there were no differences observed in cortical excitability between the groups. IONM seems a feasible and valuable neurophysiological tool to signal possible surgically induced damage to the spinal cord during scoliosis correction surgery in patients with DMD.
Source: European Spine Journal - Category: Orthopaedics Source Type: research
ConclusionMultilevel extended PCO plus UCS procedure could achieve significant correction of scoliosis and kyphosis in the treatment of degenerative lumbar kyphoscoliosis, presenting less surgery time, lower incidence of complication, and shorter hospital stay when compared with the asymmetric PSO technique.
Source: International Orthopaedics - Category: Orthopaedics Source Type: research
ConclusionCurve progression can be predicted by the underlying vertebral abnormalities. However, it cannot predict cord and other organ-system anomalies. Thus, all patients with congenital scoliosis must undergo MRI of the spine, electro- and echocardiography and ultrasonography of the abdomen to detect occult abnormalities and optimize the patient prior to deformity correction.
Source: European Spine Journal - Category: Orthopaedics Source Type: research
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