Application of ultrasound-guided posterior laminar block in percutaneous vertebroplasty
Objective To observe the anesthetic effect of ultrasound-guided retrolaminar block(RLB)in percutaneous vertebroplasty(PVP).Methods Eighty cases of osteoporotic vertebral compression fracture(OVCF)undergoing PVP were selected and divided into the observation group(R group)and control group(L group)by the random number table method,40 cases in each group.The R group adopted the RLB anes-thesia,and the L group adopted the local infiltration anesthesia.The effect of sensory block at 15 min after block,intraoperative remedy analgesic rate,dosage of sufentanil,VAS scores at vertebra puncture(Tl)and bone cement injection(T2)were compared between the two groups.The complications such as pneumotho-rax,hematoma,infection,lower extremity muscle strength and paresthesia were recorded.Results There was no significant difference in cutaneous block effect at 15min after anesthesia between the two groups(P＞0.05).The VAS scores at Tl and T2 in the R group were lower than those in the L group,and the differences were statistically significant[(0.98±0.92)points,(2.05±0.96)points vs.(1.58±1.20)points,(2.63± 1.13)points,P＜0.05].The remedy analgesic rate and dosage of sufentanil in the group R were lower than those in the group L,and the differences were statistically significant[10.0％,(5.00±0.00)pg vs.27.5％,(6.82±2.52)pg,P＜0.05].No complications such as pneumothorax,hematoma and infection occurred in 2 groups except for 3 cases of mild numbness in lower waist and buttocks in the group R.Conclusion Ultra-sound-guided RLB has better anesthetic effect than local infiltration anesthesia in PVP,which could be used as the anesthesia method choice.
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