Isobaric ; bupivacaine ; femoral head replacement ; bone cement response syndrome .

等比重；布比卡因；股骨头置换术；骨水泥反应综合症。

There is a certain extent difference for the temperature at each isobaric surface , and the difference is most when the convection is active .

两种仪器在各等压面上的气温值有一定差异，这种差异在大气对流活跃时尤为突出。

Lumbar plexus block combined with isobaric bupivacaine anesthesia in elderly total hip replacement .

老年髋关节置换应用等比重布比卡因复合腰丛阻滞。