Postoperative Analgesia After Total Hip Arthroplasty: Comparative Evaluation of Pericapsular Nerve Group Versus Fascia Iliaca Compartment Block

August 11, 2026 updated by: Diaaeldin Badr Aboelnile, Ain Shams University

Postoperative Analgesia After Total Hip Arthroplasty: Comparative Evaluation of Pericapsular Nerve Group Versus Fascia Iliaca Compartment Block in a Randomized Controlled Trial

The aim of this study is to compare the effectiveness of pericapsular nerve group (PENG) block versus fascia iliaca compartment block (FICB) for postoperative pain relief following total hip arthroplasty (THA).

Study Overview

Detailed Description

Total hip arthroplasty is a widely used surgical treatment intervention for treating hip conditions such as femur neck fractures and advanced hip osteoarthritis.

Hip fractures are quite common, regardless of the age of the population (young or old), and they are extremely painful. A hip fracture is a serious injury with potentially life-threatening complications, and it is a common orthopedic emergency in elderly individuals. Early surgery within 48 hours of a fracture has been found to lower mortality and complication rates.

The pericapsular nerve group block is a novel regional analgesia technique to decrease pain after total hip arthroplasty (THA) while preserving the motor function. The local anaesthetic is deposited using this method in the fascial plane between the psoas muscle and the superior pubic ramus, which aims sensory branches of the obturator, accessory obturator, and femoral nerves in the anterior capsule of the hip.

Fascia iliaca compartment block, for procedures on the femur and hip joint, is still a well-liked regional anaesthetic technique. Studies have found that FICB prevents complications by anaesthetizing the femoral nerve far from critical neurovascular structures while still giving enough analgesia.

Both blocks could be used to effectively reduce pain intensity up to 24 hours, total opioid consumption, and length of hospital stay in THA patients.

Study Type

Interventional

Enrollment (Actual)

68

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Cairo, Egypt, 11588
        • Ain shams university

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age from 18 to 80 years.
  • Both sexes.
  • American Society of Anaesthesiologists (ASA) Physical Status II-III.
  • Scheduled for Total hip arthroplasty (THA) under spinal anesthesia.

Exclusion Criteria:

  • Patients' refusal
  • Contraindications to spinal anesthesia or nerve blocks.
  • History of allergy to the medications used in the study.
  • Pregnancy.
  • Significant cognitive impairment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group A
Patients received an ultrasound-guided supra-inguinal fascia iliaca compartment block.
Patients received an ultrasound-guided supra-inguinal fascia iliaca compartment block.
Active Comparator: Group B
Patients received an ultrasound-guided pericapsular nerve group (PENG) block.
Patients received an ultrasound-guided pericapsular nerve group (PENG) block.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Degree of pain
Time Frame: 24 hours postoperatively
Degree of pain was assessed using the Visual Analogue Scale (VAS). VAS is ranging from 0 to 10, where 0 is no pain and 10 is maximum pain. VAS was recorded at 0, 2, 4, 6, 12, 18, and 24 hours postoperatively.
24 hours postoperatively
Total amount of nalbuphine consumption
Time Frame: 24 hours postoperatively
If the postoperative Visual Analogue Scale (VAS) was greater than 3, an intravenous dose of 5 mg Nalbuphine diluted in 5 mL of saline was administered as needed.
24 hours postoperatively
Number of cases needing rescue doses
Time Frame: 24 hours postoperatively
The number of cases needing rescue doses was recorded.
24 hours postoperatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative ambulation
Time Frame: 24 hours postoperatively
Time from completion of surgery to first assisted standing and walking ≥2 meters was recorded as the ambulation time.
24 hours postoperatively

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Diaaeldin DA Aboelnile, MD, Lecturer, Faculty of medicine, Ain Shams university

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2023

Primary Completion (Actual)

September 1, 2024

Study Completion (Actual)

September 1, 2024

Study Registration Dates

First Submitted

July 12, 2023

First Submitted That Met QC Criteria

August 15, 2023

First Posted (Actual)

August 22, 2023

Study Record Updates

Last Update Posted (Actual)

August 13, 2026

Last Update Submitted That Met QC Criteria

August 11, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • FMASU MD76/2023

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The data will be available upon a reasonable request from the corresponding author after the end of study for one year.

IPD Sharing Time Frame

After the end of study for one year.

IPD Sharing Access Criteria

The data will be available upon a reasonable request from the corresponding author.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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