Titanium lag screw osteosynthesis in the management of mandibular fractures
Titanium lag screw osteosynthesis in the management of mandibular fractures
复制标题
钛拉力螺钉接骨术治疗下颌骨骨折
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
N. Naresh
中科院分区：
文献类型：
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作者：
Shashidevi Haranal;Arati Neeli;R. Suryavanshi;S. M. Kotrashetti;N. Naresh
目的：评价钛拉力螺钉治疗下颌骨斜向和矢状移位骨折的有效性。并分析该技术遇到的各种并发症。材料与方法：选择20例下颌骨斜向、矢状移位骨折患者。放置钛拉力螺钉，使其轴平分骨折线垂线和骨表面垂线之间的角度。结果：10例均为副骺端骨折，3例合并副骺端骨折。由于骨折碎片严重移位，其中2例采用颌间固定（表1）。在2例患者中，由于骨折部位沿下颌骨下缘沿着的骨丢失，使用了单个拉力螺钉联合小型传统微型接骨板和植骨。在严重移位的骺联合骨折和发现两个骨折部位时，使用两个拉力螺钉。所有病例均获得了足够的骨折节段刚度和稳定性。结论：钛质拉力螺钉固定具有良好的刚性、稳定性、经济性和较短的手术时间，但其使用禁忌症较少。这绝对是一个技术敏感的程序，需要严格遵守的原则，如果拉力螺钉的位置和足够的知识，下颌骨的内部解剖。
Aims and objectives: To evaluate the efficiency of titanium lag screws in the management of oblique and sagittally displaced mandibular fractures. Also to analyze various complications encountered through this technique. Materials and methods: Twenty cases presenting with mandibular oblique, sagittaly displaced mandibular fractures requiring were selected in our study. Titanium lag screws were placed such that their axes bisect the angle between a perpendicular drawn to the fracture line and perpendicular to the bone surface. Postoperative follow up was done for 3to 9 months Results: Majority of the fractures (10) were parasymphysis fractures, 3 with associated fractures. Intermaxillary fixation was used in two of these cases as the fracture fragments were severely displaced (Table1). In two patients, a single lag screw combined with a small conventional miniplate and a bone graft was used, due to loss of bone along the inferior border of the mandible in the fractured site. Two lag screws were used in severely displaced symphysis fractures and when two fracture sites were seen. Adequate rigidity and stability of fractured segments was achieved in all the cases. Conclusion : Titanium lag screw fixation was found to have good rigidity, stability, economic and less time consuming in certain type of mandibular fractures, though there exists few contraindications regarding its usage. It is definitely a technique sensitive procedure, requiring strict adherence to the principle if lag screw placement and adequate knowledge about internal anatomy of the mandible.