# Volume Versus Concentration: Clinical Effectiveness of Single Shot Quadrates Lumborum Block Using Either a High Volume/Low Concentration or Low Volume/High Concentration Injectate for Total Hip Arthroplasty.

> **NCT04259645** · PHASE4 · COMPLETED · sponsor: **Anna Uskova** · enrollment: 60 (actual)

## Conditions studied

- Acute Pain

## Interventions

- **DRUG:** Drug: Bupivacaine 0.375% 20 mL
- **DRUG:** Drug: Bupivacaine 0.375% diluted to 0.1875%

## Key facts

- **NCT ID:** NCT04259645
- **Lead sponsor:** Anna Uskova
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-04-01
- **Primary completion:** 2023-01-30
- **Final completion:** 2023-01-30
- **Target enrollment:** 60 (ACTUAL)
- **Last updated:** 2024-07-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04259645

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04259645, "Volume Versus Concentration: Clinical Effectiveness of Single Shot Quadrates Lumborum Block Using Either a High Volume/Low Concentration or Low Volume/High Concentration Injectate for Total Hip Arthroplasty.". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04259645. Licensed CC0.

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