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Preop US-Guided Nerve Blocks for Pain & Recovery After Ankle Arthroscopy

NCT07470021 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 70

Last updated 2026-03-13

No results posted yet for this study

Summary

This randomized, double-blind controlled trial investigates the effectiveness and potential trade-offs of preoperative ultrasound-guided popliteal sciatic and saphenous nerve blocks in patients undergoing ankle arthroscopy, a procedure often performed in day-case settings but associated with significant early postoperative pain and frequent opioid use. The study evaluates whether these nerve blocks can reduce early postoperative pain-measured by the highest NRS score within 24 hours-and examines their impact on functional recovery, including motor strength and ambulation. All patients receive standardized general anesthesia and multimodal analgesia, with outcomes including opioid consumption, ankle weakness, patient satisfaction, range of motion, muscle strength, hospital stay duration, and analgesia-related costs.

Conditions

  • Ankle Ligament Injury，Chronic Ankle Instability，Ankle Arthroscopy

Interventions

PROCEDURE

Ultrasound-guided popliteal sciatic and saphenous nerve block

Ultrasound-guided sciatic (20 mL) and saphenous (10 mL) nerve blocks using 0.25% ropivacaine were administered in the prone position before induction. Block success was confirmed via ultrasound (circumferential spread) and sensory loss in relevant ankle dermatomes.

PROCEDURE

Placebo nerve block

The control group underwent the same procedure, with an equivalent volume of 0.9% normal saline injected instead of local anesthetic.

Sponsors & Collaborators

  • Second Affiliated Hospital, School of Medicine, Zhejiang University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-01-30
Primary Completion
2026-11-30
Completion
2026-12-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07470021 on ClinicalTrials.gov