After a lumbar sympathetic block, many people experience leg numbness or weakness.
2
当骨刺挤压腰椎的神经，会引起下肢或足的放射痛、无力、针刺感、麻木等症状。
When a bone spur is impinging on a nerve in the lumbar spine, it can cause symptoms of radiating pain, weakness, tingling, or numbness in the legs and feet.
3
主要观察指标：两组治疗后下肢静息痛、麻木无力、间歇性跛行、行走距离的改善情况，以及不良反应。
MAIN OUTCOME MEASURES: the improvement in rest pain, numbness, intermittent limp and walking distance of the lower limbs after the treatment in the two groups as well as the adverse effects.
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