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作者为了寻求在下颌骨成形时加速修补的骨生成,而采用了直流电的刺激方法。首先给动物作了试验。取体重2～2.5千克的家兔备皮后在局麻下,从颌下径路截除左侧下颌枝,后用异体骨修复,用铬制肠线固定。其外侧面周边放置铂电极(阴极),用丝线将其固定。另一电极(阳极)固定在下颌缘上。把包有聚氯乙烯的电极的游离端,经皮下隧道向外导至手术伤口内。在移植物的外侧面上填置取自自体髂骨嵴的带有红骨髓的骨碎块(图1)。然后逐层缝合伤口。放置橡皮膜引流一昼夜。为防止感染,肌注二霉素Ⅲ10万单位。手术部位未发生炎症,经过5昼夜,把电极接到直流电的电源上(带有晶体
In order to seek accelerated bone regeneration during mandibular forming, the authors used a DC stimulation method. First, the animals were tested. Take the body weight of 2 to 2.5 kg after skin preparation under local anesthesia, from the mandibular path under the left mandibular branch, after allogeneic bone repair, fixed with chromium catgut. A platinum electrode (cathode) is placed around the outer side of the platinum electrode and fixed with a wire. The other electrode (anode) is fixed on the mandibular margin. The free end of the PVC-coated electrode was guided subcutaneously out of the tunnel to the surgical wound. On the lateral surface of the graft, bone marrow fragments with autologous iliac crest were filled (Figure 1). Then suture the wound layer by layer. Place the rubber membrane drainage a day and night. To prevent infection, intramuscular injection of erythromycin III 110 million units. No inflammation of the surgical site, after 5 days and nights, the electrode connected to the DC power supply (with crystal