Department of Orthopedics and Traumatology, Uskudar State Hospital and Acibadem Atasehir Hospital, Istanbul, Turkey.
Int Orthop. 2011 Jan;35(1):135-41. doi: 10.1007/s00264-009-0932-9. Epub 2010 Jan 9.
Static magnetic fields are a type of electromagnetic fields used in clinical practice. To ascertain what effect a static magnetic intramedullary device implanted in the rabbit femur had on fracture healing, 20 male New Zealand white rabbits with magnetic/nonmagnetic intramedullary implants were examined histologically, radiologically and for bone mineral density. Three groups were constituted according to the poles of the magnets. During surgery the intramedullary device was driven into the medulla. A femoral osteotomy was created with a mini Gigli wire at the centre point of the rod. Radiographs were obtained at the second and fourth weeks. Histological examination and bone mineral density were evaluated at the fourth week. The results of this study verified that an intramedullary implant with a static magnetic field improves bone healing in the first two weeks radiologically and that the configuration difference in magnetic poles has an effect on bone quality. Static magnetic fields have minor effects on bone mineral density values.
静磁场是临床应用中的一种电磁场。为了确定植入兔股骨的静磁场髓内装置对骨折愈合的影响，对 20 只雄性新西兰白兔进行了组织学、影像学和骨矿物质密度检查，这些兔子的髓内装置有磁性/非磁性。根据磁铁的磁极将兔子分为三组。手术时，髓内装置被推进骨髓腔。在杆的中心点用微型 Gigli 丝制作股骨切开术。在第 2 周和第 4 周拍摄 X 光片。第 4 周进行组织学检查和骨矿物质密度评估。本研究结果证实，具有静磁场的髓内植入物可在头两周内改善影像学骨愈合，磁极的构型差异对骨质量有影响。静磁场对骨矿物质密度值的影响较小。
