New hip block could match standard for Post-Surgery pain relief

NCT ID NCT06964282

Symptom relief Sponsor: University of Liege Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two types of nerve blocks—the newer iliopsoas plane block (IPB) and the established PENG block—for controlling pain and helping recovery after total hip replacement. 118 adults will receive one of the two blocks before surgery, and neither they nor their doctors will know which one. The main goal is to see if IPB works as well as PENG for pain during movement 6 hours after surgery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance: Ropivacaine
What this could lead to: If successful, this could show that a newer, simpler nerve block (IPB) works as well as the standard block (PENG) for pain after hip replacement, giving doctors another good option.
What could go wrong: This is a small, early-stage comparison study. The results may not apply to all patients or surgical approaches. Both blocks are already used, so the main risk is that IPB might not be as effective as PENG.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 118 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2025

Expected to finish

Oct 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Adult patients (age \>18 years) ASA physical status classification I-III Scheduled for elective posterior approach total hip arthroplasty (THA) under spinal anesthesia Exclusion Criteria: Pregnancy (confirmed by beta-HCG test if applicable) Known peripheral neuropathy or major neurological disease Chronic pain syndromes or long-term opioid use (\>20 mg oral morphine equivalents/day) Severe hepatic or renal insufficiency Allergy to local anesthetics Major coagulopathies Vulnerable patients (e.g., minors, legally protected individuals)

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Iliopsoas nerve block Peng block Peripheral nerve blocks Postoperative pain management Total hip arthroplasty (THA)

How to take part

Only the study team decides who joins. These are the ways to reach them.

The places running it

1 site. The list below names each one and where it is.
The official record

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New hip block could match standard for Post-Surgery pain relief

What the study statuses mean