Adductor Canal Block and IPACK Block vs. Isolated Adductor Canal Block for Post-Operative Analgesia Following HTO/DFO/TTO

February 23, 2026 updated by: NYU Langone Health

A Randomized, Single-blind, Single-center Study Measuring the Effects of Adductor Canal Block Combined With IPACK Infiltration Compared to Adductor Canal Block Alone on Post-operative Pain and Opioid Consumption in Patients Undergoing HTO/DFO/TTO

A randomized, single-blind, single-center study measuring the effects of adductor canal block combined with IPACK infiltration compared to adductor canal block alone on post-operative pain and opioid consumption in patients undergoing high tibial osteotomy (HTO)/distal femoral osteotomy (DFO)/tibial tubercle osteotomy (TTO).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
100

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10016
        • Recruiting
        • NYU Langone Health

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients between 18 and 75 years of age
  • Patients undergoing HTO/DFO/TTO.
  • American Society of Anesthesiologists (ASA) I or II

Exclusion Criteria:

  • Patients younger than 18 and older than 75.
  • Patients with multi-ligament injury
  • Patients undergoing concomitant cartilage procedure or ACLR.
  • Patients with a history of chronic pain that have used opioids for pain management for 3 months or longer.
  • Patients who are allergic to oxycodone;
  • Patients with diagnosed or self-reported cognitive dysfunction;
  • Patients with a history of neurologic disorder that can interfere with pain sensation;
  • Patients with a history of drug or recorded alcohol abuse;
  • Patients who are unable to understand or follow instructions;
  • Patients with severe liver disease, renal insufficiency, congestive heart failure, and/or significant heart disease;
  • Patients with an allergy or contraindication to any of the medications used in the study, or patients with a contraindication to any study procedures;
  • Patients with a BMI over 45;
  • Any patient that the investigators feel cannot comply with all study related procedures;
  • Any pregnant patient; assessed via urine pregnancy test in the preoperative area as part of standard preoperative surgical protocol;

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Adductor Canal Block (ACB) + IPACK Block
Participants receive ACB with IPACK block.
Drug: IPACK block
IPACK block with 20 mL of 0.25% Bupivacaine injected into the Interspace between the Popliteal Artery and Capsule of the Knee
Drug: ACB
15 mL of 0.25% Bupivacaine block of the saphenous nerve injected under ultrasound guidance via adductor canal.
Active Comparator: Isolated Adductor Canal Block
Participants receive ACB only.
Drug: ACB
15 mL of 0.25% Bupivacaine block of the saphenous nerve injected under ultrasound guidance via adductor canal.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Opioid Utilization for First 24 Hours Post-Surgery
Time Frame: Up to Hour 24 Post-Procedure (Post-Operative Day 1 [POD 1])
Opioid utilization for the first 24 hours after surgery, including during surgery, calculated as oral morphine equivalent.
Up to Hour 24 Post-Procedure (Post-Operative Day 1 [POD 1])

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Length of Stay in PACU
Time Frame: Post-Operation (POD 0 - typically up to 3 hours)
Length of time the patient is in the PACU prior to discharge.
Post-Operation (POD 0 - typically up to 3 hours)
Patient-Reported Visual Analogue Scale (VAS) Score - Baseline
Time Frame: Baseline
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
Baseline
Patient-Reported VAS Score in Post-Anesthesia Care Unit (PACU)
Time Frame: Post-Operation (POD 0 - typically up to 3 hours)
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
Post-Operation (POD 0 - typically up to 3 hours)
Patient-Reported VAS Score - Post-Operative Day 1 (POD 1)
Time Frame: POD 1
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
POD 1
Patient-Reported VAS Score - Post-Operative Day 2 (POD 2)
Time Frame: POD 2
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
POD 2
Patient-Reported VAS Score - Post-Operative Day 3 (POD 3)
Time Frame: POD 3
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
POD 3
Patient-Reported VAS Score - Post-Operative Day 7 (POD 7)
Time Frame: POD 7
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
POD 7
Patient-Reported VAS Score - Month 6 Follow-Up
Time Frame: Month 6 Post-Operation
Patients rate their pain score on a scale from 0 to 10 (0 being no pain and 10 being the worst imaginable pain); the total score is the response.
Month 6 Post-Operation
Knee injury and Osteoarthritis Outcome Score (KOOS) - Physical Function Shortform (KOOS-PS) Score - Baseline
Time Frame: Baseline
7-item assessment of how well participants are able to perform different activities. Each item is rated on a 5-point Likert scale (0 to 4), with 0 representing "none" and 4 representing "extreme". The raw score is the sum of responses and is converted to a total score ranging from 0-100, where higher scores indicate greater function.
Baseline
KOOS-PS Score - Month 6 Follow-Up
Time Frame: Month 6 Post-Operation
7-item assessment of how well participants are able to perform different activities. Each item is rated on a 5-point Likert scale (0 to 4), with 0 representing "none" and 4 representing "extreme". The raw score is the sum of responses and is converted to a total score ranging from 0-100, where higher scores indicate greater function.
Month 6 Post-Operation
Kujala Score / Anterior Knee Pain Scale (AKPS) - Baseline
Time Frame: Baseline
13-item self-report questionnaire that assesses subjective reactions to particular activities and symptoms that are known to correlate with anterior knee pain syndrome. The total score is the sum of responses and ranges from 0 to 100, with 100 being the highest possible score. Lower scores reflect greater pain and disability.
Baseline
Kujala Score / AKPS - Month 6 Follow-Up
Time Frame: Month 6 Post-Operation
13-item self-report questionnaire that assesses subjective reactions to particular activities and symptoms that are known to correlate with anterior knee pain syndrome. The total score is the sum of responses and ranges from 0 to 100, with 100 being the highest possible score. Lower scores reflect greater pain and disability.
Month 6 Post-Operation
Tegner Activity Scale (TAS) Score - Baseline
Time Frame: Baseline
The Tegner Activity Scale (TAS) is a 1-item, self-administered questionnaire used to assess a patient's ability to engage in work and sports activities. The item is rated on a scale of 0 to 10, with 0 representing maximum disability and 10 representing elite sports participation. The total score is the item response.
Baseline
Tegner Activity Scale (TAS) Score - Month 6 Follow-Up
Time Frame: Month 6 Post-Operation
The Tegner Activity Scale (TAS) is a 1-item, self-administered questionnaire used to assess a patient's ability to engage in work and sports activities. The item is rated on a scale of 0 to 10, with 0 representing maximum disability and 10 representing elite sports participation. The total score is the item response.
Month 6 Post-Operation

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
NYU Langone Health

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Laith Jazrawi, MD, NYU Langone Health

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 28, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 28, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 28, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 21, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 28, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 1, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 25, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 23, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 24-01855

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The Investigators will not be sharing this information with other researchers beyond publishing our findings in a scientific journal.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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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