von Salis-Soglio G F
Z Orthop Ihre Grenzgeb. 1985 Sep-Oct;123(5):852-8. doi: 10.1055/s-2008-1044767.
At 35.7% the average rate of pseudarthrosis following ventral spondylodesis of a segment of the lumbar spine is very high. The inadequate degree of primary stability in the segment to be ankylosed is seen as the fundamental reason for this. In the present paper an implant made of a nickel-titanium alloy ("Memory Alloy") is described, which is inserted intercorporeally and immobilizes the moving segment by traction. Experiments in sheep have confirmed that the anchorages of the implant are stable; it was also established that bony fusion occurred both around the implant as well as through it. Observations thus far in 10 patients treated by this method have shown that the implant remains stably anchored, and in some cases clear signs of bone bridge formation were demonstrable on radiographs after only a short time. If the primary stability provided by the Memory implant continues to be thus confirmed, postoperative hospitalization will in future be limited to a few days.
腰椎某节段前路脊柱融合术后假关节的平均发生率为35.7%，这一比例非常高。待融合节段初始稳定性不足被视为其根本原因。本文介绍了一种由镍钛合金（“记忆合金”）制成的植入物，该植入物通过体内插入并通过牵引固定活动节段。在绵羊身上进行的实验证实，植入物的锚固是稳定的；还证实了在植入物周围以及穿过植入物都发生了骨融合。到目前为止，用这种方法治疗的10例患者的观察结果表明，植入物保持稳定锚固，在某些情况下，仅在短时间后，X线片上就可显示出明显的骨桥形成迹象。如果记忆合金植入物所提供的初始稳定性继续得到证实，那么未来术后住院时间将限制在几天。
