To evaluate the influence of anterior fusion option on the short- and long-time outcomes on multilevel spinal reconstructions in young children.

Presented clinical observation concerns the clinical picture, diagnosis, and treatment of angiogenic vertebral body destruction in a 14-year-old child with hemangioma having atypical clinical presentation and X-ray image. The literature on Gorham’s syndrome is analyzed. Type of publication: clinical case and literature review. Level of evidence - IV.

Design: Case report.Introduction: The combination of severe post-infectious kyphosis and diaphragm relaxation is extremely rare in patient early than 1 year old. Its no publications concerning their simultaneous surgical treatment.Case description: 7-Month-old girl had simultaneous spinal reconstruction with anterior and posterior instrumentation and plastic of diaphragm because of sequelae of non-granulenatous spondylitis complicated by severe kyphosis (54) and diaphragm relaxation. Between 1.5 and 3 months of live she had several infections incl. pneumonia, enterocolitis, ENT infection. Anterior fusion was done by titanium mesh with auto-rib, posterior - by compressive rods based on low-profile hooks. The deformity was reduced till 20 degrees. 2.5 years after initial surgery and 1 year after removal of posterior instrumentation the adequate level of diaphragm and minimal (4) loss of kyphosis correction were identified.Conclusions: The combination of spondylitis and diaphragm relaxation in early aged patient could be explained but it could not be confirmed as a sequelae of late-onset neonatal sepsis with a multi-focal lesions. The simultaneous surgery provided on the combined approaches (trans-thoracic and posterior) looks as optimal options in such combination of pathologies. In remains controversial how will the spine develop after so early reconstructive surgery, including in situ stable anterior fusion carried out by titanium mesh with auto-rib. (C) 2016 Polish Neurological Society. Published by Elsevier Sp. z o.o. All rights reserved.

Objective. To analyze the results of using titanium meshes for anterior fusion in spinal reconstruction in pediatric patients. Material and Methods. Design: A retrospective cohort study from 2011 to 2014. Spinal reconstruction in 108 patients aged 8 months to 17 years was performed with titanium meshes filled with bone autografts. The indications for surgery were Pott’s disease (n = 41), non-specific chronic spondylitis and its sequences (n = 42), spinal tumors (n = 11) and congenital spinal deformities (n = 6). Additional posterior instrumentation was carried out in case of multilevel spinal reconstruction or for spinal deformity. Clinical and radiological FU results were evaluated at the 6, 12, 18 months after surgery with the analy- sis of infection reactivation risk, changes in the apical Cobb angle and dynamics of block formation in anterior fusion zone. Results. No cases of infection reactivation or process aggravation were detected during 6 months after surgery. Two pa- tients (with TB spondylitis and giant cell tumor) had deterioration of vertebral destruction with mesh instability in the period from 6 to 12 months after surgery. No one case of mesh stability preservation was associated with deformity pro- gression. Solid bone block was formed in 97 % of operated patients at 12 months after surgery. Conclusion. Using of meshes in reconstructive surgery on the spine in children does not increase the rate of postoperative complications even in infectious spondylitis, due to biological inertia of the non-resorbable material.

The results of complex chemotherapy and surgical treatment of extra-renal rhabdoid tumor with involvement of the lung, ribs and spine in a 12-year-old child are presented. Long-term results with no evidence of continued growth of the tumor and metastasis were followed for up to 3 years from the start of treatment and 2 years 7 months after radical surgery with total (360°) two-level spinal reconstruction.

The authors consider a number of geomechanical monitoring methods for the underworked salt rock behavior, including visual control of its specific structural features, measurement of displacements using contour and depth reference points, and assessment of stresses in the surrounding rock mass. It is proposed to assess stresses in salt rocks using long spacing measurement methods without modeling-based recovery of stresses from measured strains if possible.

The Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) at Darmstadt will be a dedicated heavy-ion experiment for the investigation of baryonic matter at highest net-baryon densities. A RICH detector with CO2 as radiator gas is being developed for clean and efficient electron identification which will be necessary for the measurement of some of the key observables of the physics program of CBM. The status of the development of this RICH detector and results on R&D activities concerning self-triggered readout electronics for PMTs, studies on the usage of wavelength-shifting films, as well as the evaluation of glass mirrors from industrial providers will be presented.

Clinical cases of surgical treatment of suboccipital tuberculosis in two children 7.5 and 12 years of age are presented. Clinical, X-ray, CT, and MRI findings and peculiarities of surgical intervention and postoperative follow-up are described. The application of comprehensive technologies for craniovertebral region stabilization was shown to increase the efficacy of suboccipital tuberculosis treatment.

Preparation of specimens for transmission electron microscopy and electron diffraction by the Langmuir technique is reported. Thin crystalline films of nonpolar organic compounds [paraffin and tetra(alkanoyloxy)hydroquinone] are obtained and studied as examples. The Langmuir technique has advantages over the well-established methods used in preparation of thin organic crystalline films, because it allows the control of thickness, yields textured films with a better orientation of the texture axis, and results in a high homogeneity of the specimen obtained.

μSR-method has been used for studying reactions of muonium as an analogue of a light hydrogen isotope with impurity atoms and point-like defects. The relaxation rate of muonium polarization λMu was measured for 11 samples with different concentrations of impurity atoms and defects. The rate constants of reactions of muonium with Fe, Al, Li, Ba, Cu, Mn, Ti and Pb atoms in quartz were defined.

AbstractA theoretical and experimental study is carried out on the behaviour of the Li donor impurity in the Si lattice with vacancy‐like (V) radiation‐induced defects. The electronic and geometrical structure of the cluster Si4H12 + Li4 simulating the V + Li4 complex in Si is calculated by the discrete variational Xα‐method. It is found that the cubic tetrahedral configuration of the complex is geometrically stable where the 8t2 state near the edge of the valence band is completely populated. The principal possibility of passivation of the V‐type defects by Li atoms is checked experimentally on n‐ and p‐Si samples with a Li concentration of ≈ 1017 cm−3 irradiated by reactor neutrons at fluences of 1.6 × 1015, 4 × 1015, and 3.4 × 1016 cm−3. The temperature dependences of the conductivity, Hall constant, and mobility are measured. It is shown that at high Li atom concentrations considerably in excess of the concentration of the dopant and radiation‐induced defects the electrical characteristics of the irradiated Si restore to the original level which is in agreement with the calculations on the passivation of the Li atoms by the V‐states in Si.