# Preemptive Infiltration With Betamethasone and Ropivacaine for Postoperative Pain in Laminoplasty or Laminectomy

> **NCT04153396** · PHASE4 · COMPLETED · sponsor: **Beijing Tiantan Hospital** · enrollment: 116 (actual)

## Conditions studied

- Pain, Postoperative
- Neurosurgery

## Interventions

- **DRUG:** The Treatment group
- **DRUG:** The Control group

## Key facts

- **NCT ID:** NCT04153396
- **Lead sponsor:** Beijing Tiantan Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-09-01
- **Primary completion:** 2021-12-03
- **Final completion:** 2022-06-03
- **Target enrollment:** 116 (ACTUAL)
- **Last updated:** 2023-03-14


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04153396

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04153396, "Preemptive Infiltration With Betamethasone and Ropivacaine for Postoperative Pain in Laminoplasty or Laminectomy". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT04153396. Licensed CC0.

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