The efficacy of maxillary nerve block for postoperative pain relief after two-jaw orthognathic surgery: a prospective observational study

The efficacy of maxillary nerve block for postoperative pain relief after two-jaw orthognathic surgery: a prospective observational study - The efficacy of maxillary nerve block for postoperative pain relief after two-jaw orthognathic surgery: a prospective observational study

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000061728

Enrollment

Registered

2026-06-01

Start date

2026-04-01

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

deformity of jaw

Interventions

The participants in the intervention group receive maxillary nerve block with 0.5% levobupivacaine or 0.75% ropivacaine 5-8ml before surgery. The participants in the control group receive no treatmen

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The patients aged 16 to 50 who are scheduled to undergo two-jaw orthognathic surgery by the oral and maxillofacial surgeon in our institution.

Exclusion criteria

Exclusion criteria: The patients who refuse to participate, have a psychiatric disorder, and contraindicate maxillary nerve block.

Design outcomes

Primary

Measure	Time frame
Pain-intensity score(Visual Analogue Scale: VAS) at 3 hours after the end of anesthetic management and at next morning	—

Secondary

Measure	Time frame
Usage of analgesics, Nausea-intensity score(Visual Analogue Scale: VAS) at 3 hours after the end of anesthetic management and at next morning	—

Countries

Japan

Contacts

Public Contactmasayuki okada

Yamagata University Faculty of Medicine Department of Anesthesiology

mokada@med.id.yamagata-u.ac.jp023-628-5400

Outcome results

None listed

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