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Updated: Jan 31, 2026

Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
The effects of intrathecal fentanyl for spinal anesthesia in lower extremity surgery
Sang Jin Lee1, Sang Hun Kim1, Jong Dal Jung1
1Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea. ksh3223@chosun.ac.kr.
Background:
Intrathecal opioids in combination with bupivacaine has been shown to provide adequate sensory blockade and early recovery from spinal anesthesia. This study was investigated the added effects of intrathecal fentanyl 10 microgram to bupivacaine for spinal anesthesia.
Methods:
Sixty patients undergoing lower extremity surgery were into three groups. Group I received bupivacaine 10 mg (0.5%), gruop II received bupivacaine 5 mg with normal saline 1 ml, and group III received bupivacaine 5 mg with fentanyl 10 microg and normal saline 0.8 ml.
Results:
There was no significant difference between group I and group III in the peak level and duration of sensory block. But the intensity of motor blockade was decreased in group III compared with group I and side effects of spinal anesthesia with local anesthetics was decreased in group III compared with group I. In Group II, 7 patients were complained the pain during surgery.
Conclusions:
Intrathecal fentanyl 10 microgram with bupivacaine 5 mg on spinal blockade provide reliable anesthesia for lower extremity surgery.
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