Reducing Recurrence in Campanacci Type Three Giant Cell Tumor of Bone: Outcomes from an 82-Case Study Evaluating Psuedocapsule Excision with Extended Curettage

Background & Objective: In Campanacci type 3 giant cell tumor of bone (GCT), soft tissue expansion of the tumor has been considered the most important factor for recurrence. We report the outcomes in 82 consecutive patients with GCT of the extremities treated with the excision of pseudocapsule along with extended curettage in terms of recurrence and functional results. Material and Methods: We treated 82 cases with histologically proven, radiological grade 3 GCT of the extremities, which had at least two cortices intact. We performed soft tissue expansion excision along with extended curettage using a high-speed burr, phenol, hydrogen peroxide, and electrocautery. Reconstruction was done with bone cement or bone graft, and internal fixation was performed in all cases. Cases were followed up for a minimum of two years. Results: The highest incidence of GCT was found in the distal femur (28 , 34.1%), followed by the proximal tibia (18, 21.9%), with the third most common sites being in the upper limb, where the distal radius and proximal humerus each had an equal incidence of 12 cases (14.6%). Eight patients had preoperative pathological fractures. Reconstruction with bone cement was done in 65 cases, and bone grafting was done in 17 cases. Recurrence of GCT was not observed in study population. Post-operative infections were seen in 2 patients. Conclusion: Soft tissue expansion and pseudocapsule excision along with extended curettage are effective methods for decreasing the rate of recurrence in giant cell tumors of bone

Erratum to: 36th International Symposium on Intensive Care and Emergency Medicine

[This corrects the article DOI: 10.1186/s13054-016-1208-6.]

Analysis of deformation behaviour and fracture features in glass-epoxy composites toughened by rubber and carbon additions

The crit. value of the J-integral of the title composites increases with increasing C content at 2-6% but decreases at 6-8%. The toughening of the title composites by C particles and nitrile-rubber is due to crack pinning, which occurs as the propagating cracks encounter rigid additives firmly bonded to the resin matrix, to plastic shear yielding, and to the termination of wider cracks and ribbons

Pyrolysis gas chromatographic studies on polyphosphate esters of bisphenol A

Pyrolysis gas chromatographic studies were carried out on two polyphosphate esters of bisphenol A. The gaseous pyrolysis products were found to be mainly phenols and a few phosphate compounds. The identification of phosphorus compounds in the gas phase proves a gas phase mechanism of flame retardant action for polyphosphates. The presence of phosphoric acid in the char residue supports the existence of the conventional condensed-phase mechanism. Thus, the study demonstrates that both condensed-phase and gas-phase mechanisms are operative in the flame-retardant action of polyphosphates

Some hygrothermal effects on the mechanical behaviour and fractography of glass-epoxy composites with modified interface

The mechanical behaviour of glass fibre-reinforced epoxy composites with introduced layers of materials and with fibre coating is studied. The role of aerosil powder as a filler material is investigated, and the fracture mode is analysed by scanning electron microscopy. The investigation shows a considerable drop in interlaminar shear stress for the higher fibre volume fraction, whereas the introduction of filler materials to the composite causes no change. Surface mat-reinforced samples show a marginal increase in shear stress. Exposure to moisture reduces the interlaminar shear stress value faster for the higher fibre volume fraction, thereby highlighting the role of the interracial area. Impact values for coated and uncoated fibres show an identical trend with exposure to dry heat, the former always recording lower values. The impact value decreases faster with moisture absorption for the composite with the higher fibre content. Fractography reveals poor adhesion in the coated laminates

Synthesis and spectroscopic data of 3,3',5,5'-tetrabromo-4,4'-diaminodiphenyldibromomethane

3,3',5,5'-Tetrabromo-4,4'-dlaminodlphenyMhane has been synthedzed and Its spectral and thermal characterlstlcs have been examined