Fixation of osteoporotic distal fibula fractures: A biomechanical comparison of locking versus conventional plates.
Fixation of osteoporotic distal fibula fractures: A biomechanical comparison of locking versus conventional plates.
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DOI：
10.1053/j.jfas.2006.09.009
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发表时间：
2007-01-01
期刊：
影响因子：
--
通讯作者：
Puttlitz, Christian M
中科院分区：
文献类型：
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作者：
Kim, Todd;Ayturk, Ugur M;Puttlitz, Christian M
在骨密度降低的患者中，越来越多地使用锁定钢板治疗难治性骨折。其中一种困难的骨折类型，腓骨远端骨折远端碎片的固定，可能依赖于单皮质骨和松质骨购买。本研究探讨了在尸体模型中采用锁紧和常规电镀模式所能提供的结构刚度。总的来说，数据表明带两个远端单皮质螺钉的锁定钢板结构与带3个远端螺钉的标准钢板在机械上是等效的。此外，标准钢板的固定取决于骨密度（BMD），而锁定钢板的固定与骨密度无关。本研究的临床意义是锁定钢板可能对最严重骨质疏松症患者有利。
The increased use of locking plates to treat difficult fracture scenarios has been advocated in patients that have reduced bone mineral density. One of these difficult fracture patterns, fixation of the distal fragment of a distal fibula fracture, may depend on unicortical and cancellous bony purchase. This study investigated the construct stiffness afforded by using locking and conventional plating schema in a cadaveric model. Overall, the data indicate that a locking plate construct with two distal unicortical screws was mechanically equivalent to standard plating with 3 distal screws. In addition, fixation with the standard plates was dependent on bone mineral density (BMD) whereas the locking plate fixation was independent of BMD. The clinical implication of this study is that locking plates may be advantageous in patients with the most severe osteoporosis.