The analgesic efficacy of dexamethasone as a ropivacaine adjuvant in selective tibial nerve block for total knee arthroplasty: a randomized controlled study

The analgesic efficacy of dexamethasone as a ropivacaine adjuvant in selective tibial nerve block for total knee arthroplasty: a randomized controlled study - The analgesic efficacy of dexamethasone as a ropivacaine adjuvant in selective tibial nerve block for total knee arthroplasty: a randomized controlled study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000025561

Enrollment

100

Registered

2017-01-14

Start date

2017-01-15

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

Case to undergo total knee arthroplasty.

Interventions

0.375% ropivacaine 5 mL + dexamethasone 4 mg(1 ml) 0.375% ropivacaine 5 mL + serine 1 ml

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients (American Society of Anesthesiologists physical status I-III) scheduled for total knee arthroplasty.

Exclusion criteria

Exclusion criteria: Patients were excluded if they were younger than 20-yr or older than 90-yr old, had a history of allergy to local anesthetics, had a neurological disorder affecting the corresponding region, using opioids, or were pregnat.

Design outcomes

Primary

Measure	Time frame
Pain score	—

Secondary

Measure	Time frame
Elapsed time until first additional analgesia after surgery/tibial nerve block	—

Countries

Japan

Contacts

Public ContactYuichi Ohgoshi

International University of Health and Welfare Mita Hospital Department of Anesthesiology

ohgoshi22@gmail.com+81-3-34518121

Outcome results

None listed

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