Investigation on the effects of local anesthetic spread during ultrasound-guided subgluteal sciatic nerve block on surgical anesthesia and complications

Investigation on the effects of local anesthetic spread during ultrasound-guided subgluteal sciatic nerve block on surgical anesthesia and complications - Investigation on the effects of local anesthetic spread during ultrasound-guided subgluteal sciatic nerve block on surgical block

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000005673

Enrollment

100

Registered

2011-06-01

Start date

2011-05-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

diseases that require elecive minor knee surgery

Interventions

Local anesthetic agent is injected to get circumferential spread around the sciatic nerve (what is called doughnut sign). The number of needle passes is not limited. The number of needle pass is limi

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: patients undergoing monor knee surgery

Exclusion criteria

Exclusion criteria: patients with a history of diabetes mellitus, neurologic disease, infections at the site of injection, and who require general anesthesia.

Design outcomes

Primary

Measure	Time frame
Time required for onset of sensory and motor blocks of the sciatic nerve	—

Secondary

Measure	Time frame
Quality of analgesia, conversion to general anesthesia and amount of analgesic agent administered during surgery, and postoperative complications.	—

Countries

Japan

Contacts

Public ContactShinichi Sakura

Shimane University, Faculty of medecine, Univesity hospital Surgical center

ssakura@med.shimane-u.ac.jp0853-20-2295

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026