Prevel C D, Katona T, Eppley B L, Moore K, McCarty M, Ge J
Division of Plastic Surgery, University of Kentucky Medical Center, Lexington 40536-0284, USA.
Ann Plast Surg. 1996 Nov;37(5):473-81. doi: 10.1097/00000637-199611000-00004.
Apex bending and torsional loading were utilized to study the effects of different plate design and thickness, and screw size and design on the rigidity and strength of seven different titanium mini- and microplates placed onto osteotomized proximal phalanges. One hundred forty-four fresh frozen human cadaveric proximal phalangeal bones underwent a mid shaft osteotomy followed by application of one of the following plates: (1) Synthes linear 1.5-mm five-hole plates, (2) Leibinger linear 1.2-mm five-hole or (3) 1.7-mm four-hole plates, or (4) Leibinger three-dimensional 1.2-mm four-hole, (5) 1.2-mm eight-hole, (6) 1.7-mm four-hole, or (7) 1.7-mm eight-hole plates. Three-point bending (apex dorsal or apex volar) and torsional loading were utilized for each plating configuration. Analysis of variance models of bone specimen width, depth, cortical thickness, and length revealed that increasing plate thickness was associated with increasing rigidity, but that the three-dimensional design yielded a higher relative rigidity except under apex volar loading.
采用顶点弯曲和扭转载荷来研究不同钢板设计与厚度、螺钉尺寸与设计对置于截骨后的近节指骨上的七种不同钛质微型和小型钢板的刚度和强度的影响。144块新鲜冷冻的人尸体近节指骨进行骨干截骨，随后应用以下钢板之一：(1) 辛迪思线性1.5毫米五孔钢板，(2) 莱宾格线性1.2毫米五孔钢板或(3) 1.7毫米四孔钢板，或(4) 莱宾格三维1.2毫米四孔钢板，(5) 1.2毫米八孔钢板，(6) 1.7毫米四孔钢板，或(7) 1.7毫米八孔钢板。对每种钢板配置进行三点弯曲（顶点背侧或顶点掌侧）和扭转载荷试验。对骨标本宽度、深度、皮质厚度和长度的方差分析模型显示，增加钢板厚度与增加刚度相关，但三维设计除在顶点掌侧加载外产生更高的相对刚度。
