Karakasli Ahmet, Acar Nihat, Ertem Fatih, Ozmanevra Ramazan, Erduran Mehmet
Dokuz Eylul University, Faculty of Medicine, Department of Orthopaedics and Traumatology, Izmir, Turkey.
Catalca Ilyas Cokay Hospital, Department of Orthopaedics and Traumatology, Istanbul, Turkey.
Acta Orthop Traumatol Turc. 2017 Jul;51(4):337-341. doi: 10.1016/j.aott.2017.04.006. Epub 2017 May 27.
The aim of this study was to assess the safety and stability of our novel anatomical patella plate and to compare its stability with tension band-wire technique.
A total of 12 cadaveric preserved knees (six right and six left patellae) with close patellar size were chosen to form two groups of six samples. Each group received either plate or tension band-wiring fixation for an experimentally created patella fracture. Cyclic load of an average of 350 N was applied for all specimens and after accomplishing 50 cycles the displacements of all fracture edges were recorded.
After completing 50 cycles in each group, the average fracture edges displacement measured in the plate group was 1.98 ± 0.299 mm, whereas the average fracture edges displacement measured in the tension band-wire group was 2.85 ± 0.768 mm (p = 0.016).
In the operative treatment of displaced transverse patellar fractures, the strength of fixation obtained by titanium curved plates is highly stronger when compared to the fixation with a tension band-wire technique. Fixation with titanium curved plates provides satisfactory stability at the fracture site which allow withstanding the cyclic loads during the postoperative rehabilitation.
本研究旨在评估我们新型解剖型髌骨钢板的安全性和稳定性，并将其稳定性与张力带钢丝技术进行比较。
选取12具保存的尸体膝关节（6个右髌骨和6个左髌骨），髌骨大小相近，分成两组，每组6个样本。每组均对实验制造的髌骨骨折采用钢板或张力带钢丝固定。对所有标本施加平均350 N的循环载荷，完成50个循环后记录所有骨折边缘的位移。
每组完成50个循环后，钢板组测得的骨折边缘平均位移为1.98±0.299 mm，而张力带钢丝组测得的骨折边缘平均位移为2.85±0.768 mm（p = 0.016）。
在移位的横形髌骨骨折的手术治疗中，与张力带钢丝技术固定相比，钛制弯形钢板获得的固定强度更强。钛制弯形钢板固定在骨折部位提供了令人满意的稳定性，能够承受术后康复期间的循环载荷。
