“
“Objective: The purpose of this study was to evaluate the safety of a distal femoral traction pin subjected to a 1.5-T magnetic resonance image (MRI) with regard to pin migration and implant heating in a cadaveric model.\n\nMethods: Deflection angles of various traction pins as well as a Bohler-style Steinmann Pin Tractor Bow (tractor bow) and a Kirschner wire bow subjected to a 1.5-T clinical MRI were measured. Tractions pins were placed into a cadaveric femur and the tractor bow was attached to the most distal pin to simulate distal femoral traction. Temperature and migration were measured after subjecting the cadaveric leg to a “worst-case scenario” MRI sequence

for 30 minutes.\n\nResults: All traction pins and bows showed deflection. The Kirschner wire bow showed a hazardous level of deflection and was immediately removed from further testing. The pin temperature GSK3326595 nmr changes were not significantly different than the changes in the MRI room temperature and a conduction loop was not seen in the combination

pin and tractor bow. There was no significant migration of any pin nor was there objective loosening from pin vibration.\n\nConclusions: implant-quality stainless steel traction pins show no signs of adverse heating or pin migration when subjected to 1.5-T MRI clinical scanning. Kirschner bows are highly ferromagnetic and should not be used unless individually tested for safety. Steinmann Pin Tractor Bows Adavosertib in vitro that show weak ferromagnetism find more preliminarily appear safe to use during a 1.5-T MRI and do not produce a conduction loop with excessive heating in a cadaveric model, although further testing is indicated.”
“Epithelioid hemagioendothelioma (EH) is a rare vascular tumor with an intermediate biological behavior between hemangioma and angiosarcoma. Vertebral location is even more rare, and because the number of reported cases of EH is small and the follow-up periods short, the best surgical treatment, the role of radiotherapy and chemotherapy, as well

as the definitive prognosis are still not established.\n\nThe authors report a case of EH which presented as a vertebral fracture with neurological impairment, where a percutaneous biopsy was inconclusive. Treatment included vertebrectomy, with complete excision of the lesion, spinal canal decompression and vertebral stabilization. Anatomopathological study revealed an epithelioid vascular neoplasm with low mitotic index, and tumor cells reactive to vimentin, CD31 and CD34, leading to the diagnosis of Grade I Epithelioid Hemangioendothelioma. Because of the wide resection achieved and the low aggressiveness of the lesion, no adjuvant radio or chemotherapy was undertaken, and at 6 years follow-up there are no signs of recurrence or metastasis.”
“The role of tissue transglutaminase (tTG) in cancer development remains an important field of study.