Dugal Arun, Thakur Gagan
J Maxillofac Oral Surg. 2010 Dec;9(4):403-6. doi: 10.1007/s12663-010-0094-8. Epub 2010 Dec 14.
The stainless steel (SS) implants are economical and easily available. Tissue reaction due corrosion of metallic plates and release of metal particles in surrounding soft tissues is the main reason put forward by advocates of removal of SS miniplates after period of fracture healing. The objectives of this study were to examine the surfaces changes and corrosion in relation to indigenously manufactured SS mini-plates, both due to intraoperative instrumentation and tissue reaction. The composition of these mini-plates and any metal release in surrounding soft tissues was also studied.
Total ten plates retrieved from fracture sites, after a period of 4-12 months (mean 8 months), were studied with the help of scanning electron microscope for roughness and corrosive changes. EDX study was done to know the composition of plates and metal release from the plates.
Our study found the above parameters were comparable to previously reported studies in the international journals
Though no major corrosion and tissue reaction was observed in this study a long term study will be required for absolute recommendation regarding necessity of removal of indigenous SS plates on regular basis.
不锈钢（SS）植入物经济且易于获得。骨折愈合一段时间后，主张取出SS微型钢板的人提出，金属板腐蚀以及金属颗粒在周围软组织中的释放所引起的组织反应是主要原因。本研究的目的是检查与国产SS微型钢板相关的表面变化和腐蚀情况，包括术中器械操作和组织反应所导致的。还研究了这些微型钢板的成分以及周围软组织中的任何金属释放情况。
从骨折部位取出总共10块钢板，时间为4至12个月（平均8个月），借助扫描电子显微镜研究其粗糙度和腐蚀变化。进行能谱分析（EDX）以了解钢板的成分以及钢板中的金属释放情况。
我们的研究发现上述参数与国际期刊上先前报道的研究结果相当。
尽管本研究未观察到重大腐蚀和组织反应，但对于定期取出国产SS钢板的必要性给出绝对建议仍需要进行长期研究。
