Periarticular Infiltration of Local Anesthetics Versus Pericapsular Nerve Group Block for Total Hip Replacement

January 2, 2023 updated by: Julian Aliste, University of Chile

A Randomized Comparison Between Periarticular Infiltration of Local Anesthetics and Ultrasound-Guided Pericapsular Nerve Group Block for Total Hip Replacement

This randomized trial is set out to compare the postoperative strength preservation capacity of local infiltration anesthesia (LIA) and pericapsular nerve group (PENG) block after performing a primary total hip arthroplasty (THA).

The hypothesis is that LIA represents a superior alternative to PENG block in terms of strength preservation but providing effective analgesia during the first 24 postoperative hours after THA. Hence, the trial was designed as a superiority study hypothesizing a fivefold reduction in quadriceps paresis/paralysis at 3 hours.

Study Overview

Detailed Description

Patients who agree to participate in the protocol will be assigned to one group or another (LIA and PENG) through computationally generated block randomization. Outcome assessors blinded to randomization will perform all measurements.

All blocks, LIA or PENG, will be performed (or supervised) by one of the co-authors, an expert orthopedic surgeon or an expert anesthesiologist, respectively. Both blocks will be executed in the operating room, on the surgical table, under sedation, and with the barrier that separates the surgical field from the cranial area of the patient to keep the latter blind to the technique received.

All patients will undergo spinal anesthesia using 0.5% bupivacaine (10mg) plus 20 μg of fentanyl. Both groups will also receive tranexamic acid 1g intravenous (IV), ketoprofen 100mg IV, and acetaminophen 1gr IV. Propofol sedation guided with a targeted controlled infusion (TCI) model will be administered in order to obtain an adequate level of sedation.

All surgeries will be conducted by the same team of surgeons, performing a posterior approach technique in the lateral decubitus position.

In the recovery room, all patients will receive patient-controlled analgesia (morphine bolus = 1 mg; lockout interval = 8 minutes). On the surgical ward, all subjects will continue to receive acetaminophen (1 g per os every 6 hours), ketoprofen (100 mg per os every 8 hours) as well and patient-controlled analgesia (morphine bolus = 1 mg IV; lockout interval = 8 minutes).

Study Type

Interventional

Enrollment (Actual)

60

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

    • Metropolitan
      • Santiago, Metropolitan, Chile, 8380456
        • Hospital Clínico Universidad de Chile

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 to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age between 18 and 80 years
  • American Society of Anesthesiologists classification 1-3
  • Body mass index between 20 and 35 (kg/m2)

Exclusion Criteria:

  • Adults who are unable to give their own consent
  • Pre-existing neuropathy (assessed by history and physical examination)
  • Coagulopathy (assessed by history and physical examination and, if deemed clinically necessary, by blood work up i.e. platelets ≤ 100, International Normalized Ratio ≥ 01.4 or prothrombin time ≥ 50)
  • Renal failure (assessed by history and physical examination and, if deemed clinically necessary, by blood work up i.e. creatinine ≥ 100)
  • Hepatic failure (assessed by history and physical examination and, if deemed clinically necessary, by blood work up i.e. transaminases ≥ 100)
  • Allergy to local anesthetics (LAs) or morphine
  • Pregnancy
  • Prior surgery in the inguinal area of the corresponding surgical side
  • Previous hip arthroplasty due to hip fracture
  • Chronic pain syndromes requiring opioid intake at home

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Pericapsular nerve group block
Twenty milliliters of bupivacaine 0.5% (100 milligrams) with epinephrine 5 ug/mL will be deposited in the anterior aspect of the iliac bone between its periosteum and the tendon of the iliopsoas muscle. Additionally, ketorolac 30 mg will be administered intravenously.
After the ultrasound-guided insertion of a block needle at the level of the inguinal ligament, the needle will be advance into the plane between the iliac bone periosteum and the tendon of the iliopsoas muscle in order to inject 20 mL of adrenalized 0.5% bupivacaine.
Experimental: Periarticular local anesthetic infiltration
Sixty milliliters of 0.25% bupivacaine (150 milligrams), 5ug/mL epinephrine, and ketorolac 30 mg will be deposited at the periarticular level under direct vision during surgery. Fascia, subcutaneous tissues, and skin will also be infiltrated with part of the solution before wound closure.
Intraoperatively, 60 mL of adrenalized 0.25% bupivacaine plus ketorolac 30 mg will be infiltrated by the surgeon.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Presence of quadriceps motor block (defined as paralysis or paresis)
Time Frame: 3 hours after post anesthesia care unit (PACU) arrival
Quadriceps motor function will be tested with the patient lying on the bed and with the hip joint at 45º and the knee at 90º. The subject will be asked to extend the knee, first against gravity and then against resistance. Quadriceps strength will be graded according to a 3-point scale: normal strength = 0 point (extension against resistance); paresis = 1 point (extension against gravity but not against resistance); and paralysis = 2 points (no extension).
3 hours after post anesthesia care unit (PACU) arrival

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Duration of surgery
Time Frame: 4 hours after skin incision
Time between skin incision and closure (min)
4 hours after skin incision
Postoperative opioid related side effects
Time Frame: 48 hours after PACU arrival
Presence of postoperative nausea, vomiting, pruritus, urinary retention, respiratory depression.
48 hours after PACU arrival
Presence of quadriceps motor block (defined as paralysis or paresis)
Time Frame: 6 hours after PACU arrival
Quadriceps motor function will be tested with the patient lying on the bed and with the hip joint at 45º and the knee at 90º. The subject will be asked to extend the knee, first against gravity and then against resistance. Quadriceps strength will be graded according to a 3-point scale: normal strength = 0 point (extension against resistance); paresis = 1 point (extension against gravity but not against resistance); and paralysis = 2 points (no extension).
6 hours after PACU arrival
Presence of quadriceps motor block (defined as paralysis or paresis)
Time Frame: 24 hours after PACU arrival
Quadriceps motor function will be tested with the patient lying on the bed and with the hip joint at 45º and the knee at 90º. The subject will be asked to extend the knee, first against gravity and then against resistance. Quadriceps strength will be graded according to a 3-point scale: normal strength = 0 point (extension against resistance); paresis = 1 point (extension against gravity but not against resistance); and paralysis = 2 points (no extension).
24 hours after PACU arrival
Hip adduction strength
Time Frame: 3 hours after PACU arrival
Hip adduction will be evaluated by comparing it to baseline strength (i.e., prior to spinal anesthesia). A blood pressure cuff, inflated at 40 mmHg, will be inserted between the knees of the patient: the latter will then be instructed to squeeze the cuff as hard as possible and to sustain the effort. We will define hip adduction scores of 0, 1, and 2 points as decreases in strength of 0-20% (normal strength), 21-70% (paresis), and 71-90% (paralysis) compared to the baseline measurement, respectively.
3 hours after PACU arrival
Hip adduction strength
Time Frame: 6 hours after PACU arrival
Hip adduction will be evaluated by comparing it to baseline strength (i.e., prior to spinal anesthesia). A blood pressure cuff, inflated at 40 mmHg, will be inserted between the knees of the patient: the latter will then be instructed to squeeze the cuff as hard as possible and to sustain the effort. We will define hip adduction scores of 0, 1, and 2 points as decreases in strength of 0-20% (normal strength), 21-70% (paresis), and 71-90% (paralysis) compared to the baseline measurement, respectively.
6 hours after PACU arrival
Hip adduction strength
Time Frame: 24 hours after PACU arrival
Hip adduction will be evaluated by comparing it to baseline strength (i.e., prior to spinal anesthesia). A blood pressure cuff, inflated at 40 mmHg, will be inserted between the knees of the patient: the latter will then be instructed to squeeze the cuff as hard as possible and to sustain the effort. We will define hip adduction scores of 0, 1, and 2 points as decreases in strength of 0-20% (normal strength), 21-70% (paresis), and 71-90% (paralysis) compared to the baseline measurement, respectively.
24 hours after PACU arrival
Postoperative morphine consumption
Time Frame: 24 hours after PACU arrival
Consumption of intravenous morphine (mg) registered by a patient-controlled analgesia device.
24 hours after PACU arrival
Postoperative morphine consumption
Time Frame: 48 hours after PACU arrival
Consumption of intravenous morphine (mg) registered by a patient-controlled analgesia device.
48 hours after PACU arrival
Time until first morphine demand
Time Frame: 48 hours after PACU arrival
Time (minutes) until first patient-controlled analgesia morphine demand.
48 hours after PACU arrival
Static and dynamic pain
Time Frame: 3 hours after PACU arrival
Pain intensity at rest and during active movement (hip adduction) using a numeric rating score (NRS) ranged from 0 to 10 (0 = no pain and 10 = worst imaginable pain)
3 hours after PACU arrival
Static and dynamic pain
Time Frame: 6 hours after PACU arrival
Pain intensity at rest and during active movement (hip adduction) using a numeric rating score (NRS) ranged from 0 to 10 (0 = no pain and 10 = worst imaginable pain)
6 hours after PACU arrival
Static and dynamic pain
Time Frame: 12 hours after PACU arrival
Pain intensity at rest and during active movement (hip adduction) using a numeric rating score (NRS) ranged from 0 to 10 (0 = no pain and 10 = worst imaginable pain)
12 hours after PACU arrival
Static and dynamic pain
Time Frame: 18 hours after PACU arrival
Pain intensity at rest and during active movement (hip adduction) using a numeric rating score (NRS) ranged from 0 to 10 (0 = no pain and 10 = worst imaginable pain)
18 hours after PACU arrival
Static and dynamic pain
Time Frame: 24 hours after PACU arrival
Pain intensity at rest and during active movement (hip adduction) using a numeric rating score (NRS) ranged from 0 to 10 (0 = no pain and 10 = worst imaginable pain)
24 hours after PACU arrival
Static and dynamic pain
Time Frame: 48 hours after PACU arrival
Pain intensity at rest and during active movement (hip adduction) using a numeric rating score (NRS) ranged from 0 to 10 (0 = no pain and 10 = worst imaginable pain)
48 hours after PACU arrival
Sensory block
Time Frame: 3 hours after PACU arrival
Sensory block in the anterior, lateral and medial aspects of the mid-thigh. For each territory, blockade will be evaluated using a 3-point scale: 0 = no block, 1 = analgesia (patient can feel touch, not cold), 2 = anesthesia (patient cannot feel touch)
3 hours after PACU arrival
Sensory block
Time Frame: 6 hours after PACU arrival
Sensory block in the anterior, lateral and medial aspects of the mid-thigh. For each territory, blockade will be evaluated using a 3-point scale: 0 = no block, 1 = analgesia (patient can feel touch, not cold), 2 = anesthesia (patient cannot feel touch)
6 hours after PACU arrival
Sensory block
Time Frame: 24 hours after PACU arrival
Sensory block in the anterior, lateral and medial aspects of the mid-thigh. For each territory, blockade will be evaluated using a 3-point scale: 0 = no block, 1 = analgesia (patient can feel touch, not cold), 2 = anesthesia (patient cannot feel touch)
24 hours after PACU arrival
Block/Infiltration-related complications
Time Frame: 1 hour after nerve block or local anesthetic infiltration
Incidence of adverse events related to nerve block or local anesthetic infiltration (i.e. vascular puncture, local anesthetic systemic toxicity)
1 hour after nerve block or local anesthetic infiltration
Inability to perform physiotherapy due to motor block
Time Frame: 6 hours after PACU arrival
Number of participants that cannot end the physiotherapy protocol programmed for the sixth hour after PACU arrival secondary to decreased strength in the operated limb.
6 hours after PACU arrival
Inability to perform physiotherapy due to motor block
Time Frame: Postoperative day 1
Number of participants that cannot end the physiotherapy protocol programmed for the first postoperative day secondary to decreased strength in the operated limb.
Postoperative day 1
Inability to perform physiotherapy due to motor block
Time Frame: Postoperative day 2
Number of participants that cannot end the physiotherapy protocol programmed for the second postoperative day secondary to decreased strength in the operated limb.
Postoperative day 2
Inability to perform physiotherapy due to pain
Time Frame: 6 hours after PACU arrival
Number of participants that cannot end the physiotherapy protocol programmed for the sixth hour after PACU arrival secondary to pain in the operated limb.
6 hours after PACU arrival
Inability to perform physiotherapy due to pain
Time Frame: Postoperative day 1
Number of participants that cannot end the physiotherapy protocol programmed for the first postoperative day secondary to pain in the operated limb.
Postoperative day 1
Inability to perform physiotherapy due to pain
Time Frame: Postoperative day 2
Number of participants that cannot end the physiotherapy protocol programmed for the second postoperative day secondary to pain in the operated limb.
Postoperative day 2
Readiness to discharge
Time Frame: 4 days after surgery
Days to be ready for discharge following physiotherapist criteria
4 days after surgery
Length of hospital stay
Time Frame: 7 days after surgery
Length of hospital stay after surgery
7 days after surgery

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Julián Aliste, MD, University of Chile

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 5, 2021

Primary Completion (Actual)

December 1, 2022

Study Completion (Actual)

December 1, 2022

Study Registration Dates

First Submitted

October 8, 2021

First Submitted That Met QC Criteria

October 8, 2021

First Posted (Actual)

October 21, 2021

Study Record Updates

Last Update Posted (Actual)

January 4, 2023

Last Update Submitted That Met QC Criteria

January 2, 2023

Last Verified

January 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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