Does Ultrasound Guidance Improve the Success Rate of Infraclavicular Brachial Plexus Block When Compared with Nerve Stimulation in Children with Radial Club Hands?

• 在放射状网球手的儿童，超声引导与神经刺激仪引导相比是否改善了锁骨下入路臂丛阻滞的成功率？