Segmental stability of resorbable P(L/DL)LA-TMC osteosynthesis versus titanium miniplates in orthognatic surgery
Segmental stability of resorbable P(L/DL)LA-TMC osteosynthesis versus titanium miniplates in orthognatic surgery
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DOI：
10.1016/j.jcms.2012.02.014
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发表时间：
2012-12-01
影响因子：
3.1
通讯作者：
Landes, Constantin Alexander
中科院分区：
文献类型：
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作者：
Ballon, Alexander;Laudemann, Katharina;Landes, Constantin Alexander
经过二十年的可吸收微型钢板的使用，用于可吸收骨合成的新型聚合物组合物仍在开发中，以使操作和手术结果更加可预测，并为重新定位的节段提供更高的稳定性。本研究探讨了一种用于正颌患者的新型可吸收骨合成系统。50例患者采用P(L/DL)LA-TMC可吸收骨融合术，与50例患者采用微型钛板进行比较。比较术前、术后和随访的侧位脑片测量节段稳定性和复发。在整个研究中，除了上颌延伸和下颌骨后退外，可吸收物似乎与微型钛板一样稳定。在这里，钛微型板表现出明显高于可吸收板的稳定性。P(L/DL) LA-TMC在上颌延伸后的抗压强度似乎较低，并且它们对舌头施加的力的抵抗能力较弱，在后退后对下颌骨施加压力。因此，除上颌延伸和下颌骨后退外，可吸收骨融合术可用于与微型钛板相同的情况。(C) 2012欧洲颅颌面外科协会。
After two decades of the use of resorbable miniplates, new polymer compositions for resorbable osteosynthesis are still being developed to make the handling and outcome of operations even more predictable and give higher stability to the repositioned segments. This study investigates a new resorbable osteosynthesis system in orthognathic patients.50 patients were treated with P(L/DL)LA-TMC resorbable osteosynthesis and compared to a group of 50 patients treated with titanium miniplates. Segmental stability and relapse were measured comparing preoperative, postoperative and follow-up lateral cephalograms.Throughout this study, resorbables appeared to be as stable as titanium miniplates except in maxillary elongation and mandibular setback. Here, the titanium miniplates showed significantly higher stability than resorbable plates.P(L/DL) LA-TMC osteosynthesis seem to have less strength against compressive forces after maxillary elongation and they are less resistant to the forces the tongue exerts, pressing against the mandible after setback. It can therefore be concluded that the resorbable osteosynthesis can be used in the same situations as titanium miniplates except in maxillary elongation and mandibular setback. (C) 2012 European Association for Cranio-Maxillo-Facial Surgery.