Department of Orthopedics, Wuhan General Hospital of Guangzhou Command, Southern Medical University, Wuhan, People's Republic of China.
Clinics (Sao Paulo). 2013 Jul;68(7):1028-33. doi: 10.6061/clinics/2013(07)22.
The acetabular buttress-plate has been widely used in treating difficult cases with satisfying clinical results. However, the biomechanical properties of a postoperative acetabular fracture fixed by the buttress-plate are not clear. The purpose of this study was to evaluate the biomechanical properties of stability after the anterior tube buttress-plate fixation of complex acetabular fractures in the quadrilateral area.
A construct was proposed based on anterior construct plate - 1/3 tube buttress plate fixation for acetabular both-column fractures. Two groups of six formalin-preserved cadaveric pelvises were analyzed: (1) group A, the normal pelvis and (2) group B, anterior construct plate-1/3 tube buttress plate with quadrilateral area fixation. The displacements were measured, and cyclical loads were applied in both standing and sitting simulations.
As the load was added, the displacements were A<B, increasing in line. In the 600 N physiological loading, the differences were significant (standing position: p=0.013; sitting position: p=0.009) between groups A and B.
The anterior construct plate - 1/3 tube buttress plate fixation provided a better stable construct for early sitting. The standing mode yielded more significant differences between the groups. Placing a 1/3 tube buttress-plate via an anterior approach is a novel method of providing quadrilateral area support in this setting.
髋臼加强板被广泛应用于治疗困难病例，取得了满意的临床效果。然而，术后髋臼骨折采用加强板固定的生物力学性能尚不清楚。本研究旨在评估四边形区域前侧管加强板固定复杂髋臼骨折后稳定性的生物力学特性。
基于前侧构建板-1/3 管加强板固定治疗髋臼双柱骨折提出了一种结构。分析了两组 6 具福尔马林保存的骨盆标本：（1）A 组，正常骨盆；（2）B 组，前侧构建板-1/3 管加强板加四边形区域固定。测量位移，并在站立和坐姿模拟中施加循环载荷。
随着载荷的增加，位移为 A<B，呈线性增加。在 600N 生理载荷下，两组间差异具有统计学意义（站立位：p=0.013；坐位：p=0.009）。
前侧构建板-1/3 管加强板固定为早期坐姿提供了更好的稳定结构。站立模式两组间差异更显著。通过前入路放置 1/3 管加强板是在这种情况下提供四边形区域支撑的一种新方法。
