OBJECTIVE  The purpose of this study was to compare the load at failure and mode of failure of four constructs used to stabilize a tibial tuberosity osteotomy, including two vertically aligned pins (V), two horizontally aligned pins (H), two vertically aligned pins with a tension band wire (V-TB) and two horizontally aligned pins with a tension band wire (H-TB). STUDY DESIGN  Eighteen pairs of cadaveric tibiae were randomized to receive a TB or no TB. One limb was randomized to be in the H or V group. The contralateral limb was then assigned to the opposite configuration. One pair of limbs was used as a control. A tensile force was applied to the patellar ligament until construct failure. RESULTS  There was no significant difference between the mean load at failure of the H (595 N) and V (556 N) groups or between H-TB (1032 N) and V-TB groups (1034 N) (p = 0.487 and p = 0.238, respectively). The TB constructs were significantly stronger than the pin only constructs (p < 0.001). The mode of failure was similar for the pin only constructs, regardless of pin orientation. The TB constructs and control tibias failed at similar loads, most commonly by patellar ligament rupture. CONCLUSION  The use of vertically aligned pins versus horizontally aligned pins does not affect construct strength. These results support the placement of pins in a vertically or horizontally aligned fashion. When performing a tibial tuberosity osteotomy, the addition of a TB adds significant strength to the construct.

中文翻译：

---

胫骨结节截骨术固定销和张力带构造强度的尸体评估。

目的本研究的目的是比较用于稳定胫骨结节截骨术的四种结构的破坏载荷和破坏模式，包括两个垂直排列的销钉（V），两个水平排列的销钉（H），两个垂直排列的销钉以及一根张力带线（V-TB）和两个水平对齐的插针和张力带线（H-TB）。研究设计将18对尸体胫骨随机接受结核病或不接受结核病。一只肢体随机分为H组或V组。然后将对侧肢体分配到相反的位置。一对肢体用作对照。向construct韧带施加拉力，直到构造失败。结果H（595 N）和V（556 N）组或H-TB（1032 N）和V-TB组（1034 N）的平均平均负荷无显着差异（p = 0.487和p分别为0.238）。TB构建体明显强于仅销构建体（p <0.001）。不管引脚的方向如何，仅引脚结构的故障模式都相似。结核菌的构建和控制胫骨在相似的载荷下失败，最常见的是by骨韧带破裂。结论使用垂直对齐的销钉与水平对齐的销钉不会影响构造强度。这些结果支持以垂直或水平对齐方式放置引脚。进行胫骨结节截骨术时，增加TB可以显着提高构造体的强度。分别）。TB构建体明显强于仅销构建体（p <0.001）。不管引脚的方向如何，仅引脚结构的故障模式都相似。结核菌的构建和控制胫骨在相似的载荷下失败，最常见的是by骨韧带破裂。结论使用垂直对齐的销钉与水平对齐的销钉不会影响构造强度。这些结果支持以垂直或水平对齐方式放置引脚。进行胫骨结节截骨术时，增加TB可以显着提高构造体的强度。分别）。TB构建体明显强于仅销构建体（p <0.001）。不管引脚的方向如何，仅引脚结构的故障模式都相似。结核菌的构建和控制胫骨在相似的载荷下失败，最常见的是by骨韧带破裂。结论使用垂直对齐的销钉与水平对齐的销钉不会影响构造强度。这些结果支持以垂直或水平对齐方式放置引脚。进行胫骨结节截骨术时，增加TB可以显着提高构造体的强度。结核菌的构建和控制胫骨在相似的载荷下失败，最常见的是by骨韧带破裂。结论使用垂直对齐的销钉与水平对齐的销钉不会影响构造强度。这些结果支持以垂直或水平对齐方式放置引脚。进行胫骨结节截骨术时，增加TB可以显着提高构造体的强度。结核菌的构建和控制胫骨在相似的载荷下失败，最常见的是by骨韧带破裂。结论使用垂直对齐的销钉与水平对齐的销钉不会影响构造强度。这些结果支持以垂直或水平对齐方式放置引脚。进行胫骨结节截骨术时，增加TB可以显着提高构造体的强度。