Efficacy of Pericapsular Nerve Group Block

November 29, 2023 updated by: Dr. Chan Chi-Wing, The University of Hong Kong

Study Comparing the Efficacy of Pericapsular Nerve Group (PENG) Block and Facia Iliaca Compartment Block (FICB) in Hip Fracture - A Prospective Randomised Controlled Trial

Hip fracture is a common orthpaedic problem especially in elderly population. Fascia iliaca compartment block (FICB) and femoral nerve block are well-established technique as part of peri-operative multimodal analgesia for hip fractures. Reviews have shown peripheral nerve blocks including FICB, femoral nerve block and 3-in-1 block could reduce both pain and opioid consumption compared with systematic analgesia. However, there are also literature suggesting that some nerves that account for the major hip joint sensory innervation are not consistently covered. As a result, a new ultrasound guided regional technique, Pericapsular Nerve Group Block (PENG) was introduced in 2018. The primary aim of this study is to compare the analgesic effect of PENG block and FICB in terms of pain score during post-operative period. It also compares the range of movement, quadriceps power and other parameters related to physical functions of the operated hip as secondary outcomes.

Study Overview

Detailed Description

Hip fracture is a common orthopaedic problem especially in elderly population. The number of hip fractures each year is expected to double from 2.2 million in 2017 to 4.5 million in 2050. It is the commonest reason for elderly to require hospitalisation and emergency operation. Significant morbidities such as pulmonary embolism, pneumonia and bed sore can be resulted from immobility and pain. Hip fracture also contributes to post-operative mortality at a rate about 8% at 1 month and 30% at 1 year.

Fascia iliaca compartment block (FICB) and femoral nerve block are well-established technique as part of peri-operative multimodal analgesia for hip fractures. Cochrane review has shown peripheral nerve blocks including FICB, Femoral nerve block and 3-in-1 block could reduce both pain at 30 minute and opioid consumption compared with systemic analgesia. In particular, FICB is found to be superior to opioids for pain control on movement, preoperative analgesic consumption, time to first analgesic request, and time to perform spinal anaesthesia. However, literature suggests that the obturator nerve is not consistently covered.

The anterior hip capsule which contributes the major hip joint sensory innervation is supplied by femoral nerve (FN), obturator nerve (ON) and accessory obturator nerve (AON). As a result, a novel ultrasound guided regional technique, Pericapsular Nerve Group Block (PENG) was introduced in 2018, targeting the above 3 nerves. This is very important as the obturator nerve is also blocked with this technique. Case reports showed reduction in pain scores compared with baseline 30 minutes after block placement and no clinically evident quadriceps weakness was detected.

Study Type

Interventional

Enrollment (Estimated)

100

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 Contact

Study Locations

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • ASA I-II
  • Age 18 or above
  • Scheduled for hip fracture corrective surgery in Queen Mary Hospital
  • Chinese patients
  • Able to provide informed oral and written consent
  • Abbreviated Mental Test (AMT) 7 or above

Exclusion Criteria:

  • Patient refusal
  • ASA III or above
  • Allergy to local anaesthetics, opioids, paracetamol, NSAID including COX-2 inhibitors
  • Operation delayed for more than 2 days on admission
  • Pre-existing peripheral neuropathy or history of stroke
  • Preoperative non-walker
  • Pre-existing osteoarthritis of knee (KL grade 4)
  • Multiple fractures (additional to hip fracture)
  • Sepsis
  • Impaired renal function (Defined as preoperative creatinine level >120 μmol or eGFR <50% of normal reference for their age group
  • Patient with coagulopathy (Platelet < 100 or INR >1.5)
  • Prior surgery at the inguinal or supra-inguinal area

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Pericapsular Nerve Group Block
30ml 0.3% Ropivacaine will be injected between psoas muscle and iliopubic eminence.
Nerve block targeting major hip joint sensory nerves.
Active Comparator: Fascia iliaca compartment block
30ml 0.3% Ropivacaine will be injected into fascia iliaca compartment.
Routine nerve block for hip fracture surgery.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain score at rest on postoperative day 1
Time Frame: on postoperative day 1
Measure pain score at rest using numerical rating scale from 0 to 10, where 0 is no pain and 10 is the worst pain
on postoperative day 1

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Timmy CW Chan, MBBS, The University of Hong Kong

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)

November 15, 2021

Primary Completion (Estimated)

December 31, 2023

Study Completion (Estimated)

December 31, 2024

Study Registration Dates

First Submitted

November 29, 2021

First Submitted That Met QC Criteria

November 29, 2021

First Posted (Actual)

December 13, 2021

Study Record Updates

Last Update Posted (Estimated)

December 1, 2023

Last Update Submitted That Met QC Criteria

November 29, 2023

Last Verified

November 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UW21-382

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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