CAJ | 학술논문

目的：通过对锁定钢板（LCP）外置与外固定支架固定骨折进行生物力学分析，为应用锁定钢板外置固定治疗提供理论依据。方法选择不同长度的牛小腿骨，制备成骨折标本，分别采用锁定钢板外置固定和外固定支架固定，观察标本在不同载荷下承受的轴向压缩、扭转和弯曲位移。结果两组在100、200、300、400、500、600和700 N载荷下轴向压缩值比较，均有显著差异（P<0.05），且随着载荷越大轴向压缩值差距越大。两组在4、6、8、10、12和14 N.cm载荷下扭转角度比较，差异均有统计学意义（P<0.05），且随着载荷越大则扭转角度值差距越大。两组在50、100、150、200、250和300 N载荷下弯曲位移值比较，差异均有统计学意义（P<0.05），且随着载荷越大弯曲位移值差距越大。结论锁定钢板外置固定骨折在生物力学性能上优于外固定支架，可在临床应用，为治疗开放性骨折提供了一种新的方法。
목적：통과대쇄정강판（LCP）외치여외고정지가고정골절진행생물역학분석，위응용쇄정강판외치고정치료제공이론의거。방법선택불동장도적우소퇴골，제비성골절표본，분별채용쇄정강판외치고정화외고정지가고정，관찰표본재불동재하하승수적축향압축、뉴전화만곡위이。결과량조재100、200、300、400、500、600화700 N재하하축향압축치비교，균유현저차이（P<0.05），차수착재하월대축향압축치차거월대。량조재4、6、8、10、12화14 N.cm재하하뉴전각도비교，차이균유통계학의의（P<0.05），차수착재하월대칙뉴전각도치차거월대。량조재50、100、150、200、250화300 N재하하만곡위이치비교，차이균유통계학의의（P<0.05），차수착재하월대만곡위이치차거월대。결론쇄정강판외치고정골절재생물역학성능상우우외고정지가，가재림상응용，위치료개방성골절제공료일충신적방법。
Objective To explore the biomechanics of the fractures fixation by external locking plate and external fixator, and to provide a theoretical basis for clinical application of external locking plate in fracture fixation. Methods Bovine bones of different lengths were chosen as the artificial fracture specimens and external locking plate fixation and external fixation were adopted respectively to observe the axial compression, torsion and bending changes under different loads by using a variety of testing methods. Results The differences of the axial compressive load values between the two groups under 100, 200, 300, 400, 500, 600 and 700 N were statistically significant (P<0.05), with the larger of the load, the greater of the gap of axial compressive values. The differences of torsion angles between the two groups under 4, 6, 8, 10, 12, 14 N.cm were statistically significant (P<0.05), and the greater of the load, the bigger of the gap of torsion angles. The differences of bending load displacement values between the two groups under 50, 100, 150, 200, 250, 300 N were statistically significant (P<0.05), and with the greater of the load, the larger of the gap in bending displacement values. Conclusion The biomechanics of external locking plate fixation is better than the external fixator, and it can be clinically used as external fixators, providing a new method for the clinical treatment of open fractures.