Comparison of Local Anesthetic Dose in Ipack Block Performed in Knee Arthroplasty Operations

February 10, 2024 updated by: Nur Canbolat, Istanbul University

Comparison of Local Anesthetic Dose in IPACK (Interspace Between the Popliteal Artery and the Posterior Capsule of the Knee) Block Performed for Postoperative Analgesia in Knee Artroplasty Operations

The investigators research was designed as a single-center, prospective, randomized study. The patients undergoing knee artrhroplasty surgery in Istanbul University Istanbul Medicine Faculty Department of Orthopedics and Traumatology will be included. Patients who are legally authorized to make decisions on their behalf will be informed about the research and their written consent will be obtained. Patients who do not give consent will not be included in the study.

Patients will be given US guided IPACK and adductor blocks using a 22 gauge 10 mm block needle after compliance with the rules of asepsia and antisepsis in the supine position according to the group of patients in which they were included.

IPACK and adductor block will be done for postoperative analgesia. After then, a single dose of spinal anesthesia will be applied as a regional anesthesia method, in a sitting position, using the appropriate spinal needle, as is routinely applied in the investigators clinic. After the block is completed, the pinprick test will be done and the operation will be started after the successful completion of the block is confirmed. Oxygen will be given to the patients with a face mask at 4 lt / min throughout the operation. ECG, saturation, invasive / noninvasive blood pressure monitoring of the patients will be done.

In the investigators clinic, the use of IPACK block, adductor block and PCA (patient controlled analgesia) device with intravenous morphine for postoperative analgesia is routinely performed. In this study, four randomized groups will be formed together with the control group.

IPACK block will be applied to the 1st group with 10 ml of 0.25% bupivacaine, to the 2nd group with 15 ml of 0.25% bupivacaine, and to the 3rd group with 20 ml of 0.25% bupivacaine.Adductor block will be applied to all the groups with 15 ml %0,25 bupivacaine and PCA (patient controlled analgesia) device with intravenous morphine for postoperative analgesia is performed.

Pain score and total morphine consumption will be determined by numeric rating scale (NRS) at the postoperative 1, 4, 8, 12, 24 and 48th hours by providing the use of a PCA device with intravenous morphine applied in routine practice to all four groups. As in routine practice, when NRS > 4 after each interrogation, morphine 2 mg iv will be administered as additional analgesia and the maximum will be increased to 10 mg. Pain management will continue when NRS < 4.

Study Overview

Status

Completed

Detailed Description

The investigators research was designed as a single-center, prospective, randomized study.

The patients undergoing knee arthroplasty in Istanbul University Istanbul Medicine Faculty Department of Orthopedics and Traumatology will be included. Patients who are legally authorized to make decisions on their behalf will be informed about the research and their written consent will be obtained. Patients who do not give consent will not be included in the study.

Patients will be evaluated preoperative before surgery, a detailed history will be taken and physical examination will be carried out. Medical and surgical resume information will be obtained. Patients' NRS scores will be recorded before the operation. Patients will be taken to the operating room after premedication.

ECG, pulse oximeter, blood pressure monitoring will be performed in the operating room. Patients will be given US guided IPACK and adductor blocks using a 22 gauge 10 mm block needle after compliance with the rules of asepsia and antisepsis in the supine position according to the group of patients in which they were included.

IPACK and adductor block will be done for postoperative analgesia. After then, a single dose of spinal anesthesia will be applied as a regional anesthesia method, in a sitting position, using the appropriate spinal needle, as is routinely applied in the investigators clinic. After the block is completed, the pinprick test will be done and the operation will be started after the successful completion of the block is confirmed. Oxygen will be given to the patients with a face mask at 4 lt / min throughout the operation.ECG, saturation, invasive / noninvasive blood pressure monitoring of the patients will be done.

In the investigators clinic, the use of IPACK block, adductor block and PCA (patient controlled analgesia) device with intravenous morphine for postoperative analgesia is routinely performed. In this study, four randomized groups will be formed together with the control group.Computer-generated random numbers will be used for simple randomization of patients.

IPACK block will be applied to the 1st group with 10 ml of 0.25% bupivacaine, to the 2nd group with 15 ml of 0.25% bupivacaine, and to the 3rd group with 20 ml of 0.25% bupivacaine.Adductor block will be applied to all the groups with 15 ml %0,25 bupivacaine and PCA (patient controlled analgesia) device with intravenous morphine for postoperative analgesia is performed.

Pain score and total morphine consumption will be determined by numeric rating scale (NRS) at the postoperative 1, 4, 8, 12, 24 and 48th hours by providing the use of a PCA device with intravenous morphine applied in routine practice to all four groups. As in routine practice, when NRS > 4 after each interrogation, morphine 2 mg iv will be administered as additional analgesia and the maximum will be increased to 10 mg. Pain management will continue when NRS < 4.

Patients are followed up in the service for 48 hours postoperatively in routine practice.

In the postoperative period, patients will be evaluated in terms of additional nausea and vomiting,amount of morphine consumed and additional analgesic need postoperative period up to 48 hours.First mobilization time, hospitalization time will be evaluated.Womac osteoarthritis index and joint range of motion will be evaluated at preoperative period and at the discharge day from the hospital.The Medical Research Council (MRC) Scale for Muscle Strength for lower extremity will be evaluated preoperative period, at postoperative 24th hour and at the discharge day from the hospital.

Postop patient satisfaction and surgical satisfaction with Likert scale will also be evaluated at postoperative period.

During the procedure, complications such as failed block, nerve damage, vascular injury, intravenous injection of local anesthetic, local anesthetic toxicity and allergic reactions will be recorded.

Before the study, it was determined that at least 112 patients should be collected in the power analysis performed with the help of similar literature data. After collecting the demographic data and morphine consumption data of the patients, the data will be transferred to the statistical program called SPSS and statistical analysis will be made.The investigators study does not contain any modifications other than the investigators daily routine practices.

Study Type

Interventional

Enrollment (Actual)

112

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

      • Istanbul, Turkey
        • Istanbul University Istanbul Medical Faculty

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:

  • Patients scheduled for knee arthroplasty surgery under regional anesthesia
  • ASA(American Society of Anesthesiology) 1-3
  • Receiving consent that accept regional analgesia

Exclusion Criteria:

  • Refusal of regional anesthesia
  • Infection on the local anesthetic application area
  • Infection in the central nervous system
  • Coagulopathy
  • BMI > 40
  • Known allergy against local anesthetics

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group 1:10 ml %0,25 bupivacaine ıpack and 15 ml %0,25 bupivacaine adductor block
In this group,US guided IPACK block will be performed with 10 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0.25 bupivacaine using a 22 gauge 10 mm block needle.
US guided IPACK block will be performed with 10/15/20 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0,25 bupivacaine.
Other Names:
  • Marcaine
In this group,adductor block will be performed with 15 ml %0,25 bupivacaine using a 22 gauge 10 mm block needle and patients will be postoperatively administered patient controlled analgesia with morphine.
Other Names:
  • morphine
Active Comparator: Group 2:15 ml %0,25 bupivacaine ıpack and 15 ml %0,25 bupivacaine adductor block
In this group,US guided IPACK block will be performed with 15 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0.25 bupivacaine using a 22 gauge 10 mm block needle.
US guided IPACK block will be performed with 10/15/20 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0,25 bupivacaine.
Other Names:
  • Marcaine
In this group,adductor block will be performed with 15 ml %0,25 bupivacaine using a 22 gauge 10 mm block needle and patients will be postoperatively administered patient controlled analgesia with morphine.
Other Names:
  • morphine
Active Comparator: Group 3:20 ml %0,25 bupivacaine ıpack and 15 ml %0,25 bupivacaine adductor block
In this group,US guided IPACK block will be performed with 20 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0.25 bupivacaine using a 22 gauge 10 mm block needle.
US guided IPACK block will be performed with 10/15/20 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0,25 bupivacaine.
Other Names:
  • Marcaine
In this group,adductor block will be performed with 15 ml %0,25 bupivacaine using a 22 gauge 10 mm block needle and patients will be postoperatively administered patient controlled analgesia with morphine.
Other Names:
  • morphine
Active Comparator: Group 4:15 ml %0,25 bupivacaine adductor block and intravenous patient controlled analgesia
In this group adductor block will be performed with 15 ml %0.25 bupivacaine using a 22 gauge 10 mm block needle and postoperative patient controlled analgesia with morphine will be preferred for postoperative analgesia method.
US guided IPACK block will be performed with 10/15/20 ml %0,25 bupivacaine and adductor block will be performed with 15 ml %0,25 bupivacaine.
Other Names:
  • Marcaine
In this group,adductor block will be performed with 15 ml %0,25 bupivacaine using a 22 gauge 10 mm block needle and patients will be postoperatively administered patient controlled analgesia with morphine.
Other Names:
  • morphine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Numeric Rating Scale(0-10)pain scores for patients.
Time Frame: postoperative period up to 48 hours
NRS(Numeric Rating Scale),0:no pain,10:the worst pain.
postoperative period up to 48 hours
Opioid (mg) consumption
Time Frame: postoperative period up to 48th hours
Opioid (mg) consumption
postoperative period up to 48th hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time until postoperative first mobilization
Time Frame: Up to 48 hours
First mobilization time
Up to 48 hours
Incidence of side effects
Time Frame: postoperative period up to 48th hours
Incidence of nausea and vomiting
postoperative period up to 48th hours
Length of hospital stay
Time Frame: Through study completion, an average of 1 week.
Hospitalization
Through study completion, an average of 1 week.
Womac osteoarthritis index
Time Frame: Discharge 1 day from the hospital
Womac osteoarthritis index
Discharge 1 day from the hospital
The Medical Research Council (MRC) Scale for Muscle Strength for lower extremity
Time Frame: Discharge 1 day from the hospital
The Medical Research Council (MRC) Scale for Muscle Strength is a commonly used scale for assessing muscle strength from Grade 5 (normal) to Grade 0 (no visible contraction).
Discharge 1 day from the hospital
Joint range of motion
Time Frame: Postoperative period up to 48th hours, discharge 1 day
Joint range of motion
Postoperative period up to 48th hours, discharge 1 day
Patient satisfaction
Time Frame: Postoperative period up to 48th hours
Satisfaction score;0-very unsatisfied,5-very satisfied.
Postoperative period up to 48th hours
Surgeon satisfaction
Time Frame: Postoperative period up to 48th hours
Satisfaction score;0-very unsatisfied,5-very satisfied.
Postoperative period up to 48th hours

Collaborators and Investigators

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

Investigators

  • Principal Investigator: GÜLBERK KILIÇ, MD, Istanbul Faculty of Medicine

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.

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)

August 1, 2023

Primary Completion (Actual)

February 1, 2024

Study Completion (Actual)

February 10, 2024

Study Registration Dates

First Submitted

July 19, 2023

First Submitted That Met QC Criteria

July 26, 2023

First Posted (Actual)

July 27, 2023

Study Record Updates

Last Update Posted (Estimated)

February 13, 2024

Last Update Submitted That Met QC Criteria

February 10, 2024

Last Verified

February 1, 2024

More Information

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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