多轴锁定与非锁定钢板固定腓骨远端不稳定骨折的生物力学分析：一项仅使用骨骼模型的尸体研究
Biomechanical analysis of polyaxial locking vs. non-locking plate fixation of unstable fractures of the distal fibula: A cadaver study with a bone only model.
作者信息
Hallbauer J, Gräfenstein A, Rausch S, Knobe M, Simons P, Mückley T, Hofmann G O, Klos K
机构信息
Department of Trauma, Hand and Reconstructive Surgery, University Hospital, Jena, Germany.
Department of Trauma, Hand and Reconstructive Surgery, HELIOS Clinical Centre, Erfurt, Germany.
出版信息
Foot Ankle Surg. 2018 Aug;24(4):326-329. doi: 10.1016/j.fas.2017.03.008. Epub 2017 Mar 30.
BACKGROUND
Open reduction and internal fixation is the current standard of treatment of displaced distal fibula fractures, whereupon using a lag screw often is impossible because of a multifragmantary fracturezone. This study investigates in what extend polyaxial-locking plating is superior to non-locking constructs in unstable distal fibula fractures.
METHODS
Seven pairs of human cadaver fibulae were double osteotomized in standardized fashion with a 5mm gap. This gap simulated an area of comminution, where both main fragments were no longer in direct contact. One fibula of the pair was managed using a 3.5-mm screw in a polyaxial-locking construct and the other fibula in a non-locking construct.
背景
切开复位内固定是目前治疗移位性腓骨远端骨折的标准方法，然而，由于骨折块碎裂区域的存在，常常无法使用拉力螺钉。本研究探讨在不稳定的腓骨远端骨折中，多轴锁定钢板在何种程度上优于非锁定结构。
方法
七对人体尸体腓骨以标准化方式进行两次截骨，形成5毫米的间隙。该间隙模拟粉碎区域，此时两个主要骨折块不再直接接触。每对中的一根腓骨采用多轴锁定结构用3.5毫米螺钉处理，另一根腓骨采用非锁定结构处理。
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