如果这种阻塞是与血管的扭曲有关，而不是与血管内的损伤有关，采用侵入性的治疗方法，例如髂骨动脉绕道手术就没有必要了。
If the obstruction is related to kinking rather than intravascular lesions, invasive interventions such as iliac-artery-bypass surgery may not be needed.
如果这种阻塞是与血管的扭曲有关，而不是与血管内的损伤有关，采用侵入性的治疗方法，例如髂骨动脉绕道手术就没有必要了。
If the obstruction is related to kinking rather than intravascular lesions, invasive interventions such as iliac-artery-bypass surgery may not be needed.
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