Knee OsteoarthritisPhase 4NCT06086483
Pain Management After Adductor Canal Block for Total Knee Arthroplasty
A Phase 4 study testing Ropivacaine 0.2% Injectable Solution and 0.9%sodium chloride in people with Knee Osteoarthritis and Knee Arthritis, run by Poznan University of Medical Sciences at 1 site in Poland.
Trial summary
This randomized, double-blinded, placebo-controlled trial sought to evaluate the efficacy of the iPACK block with Adductor Canal Block on postoperative pain, functional recovery and NLR and PLR levels. Read more about this study
- Who is it for?
- Ages 18 to 100 years
- Conditions the study is for
- Knee Osteoarthritis, Knee Arthritis, Knee Arthropathy
- What is being tested?
- Ropivacaine 0.2% Injectable Solution and 0.9%sodium chloride
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 361 participants
- Where
- 1 sitePoland
- Study dates
- 18 Jun 2020to 24 Aug 2023
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 100 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients > 18 years old undergoing unilateral total knee arthroplasty
Who cannot join
- refusal to participate
- < 18 yo
- Chronic opioid use
- localized infection
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Pain Management and Functional Recovery After Adductor Canal Block Combined With iPACK Block for Total Knee Arthroplasty. A Prospective, Randomized, Double-blinded Clinical Trial.
This randomized, double-blinded, placebo-controlled trial sought to evaluate the efficacy of the iPACK block with Adductor Canal Block on postoperative pain, functional recovery and NLR and PLR levels.
Read the detailed description
The Interspace between the popliteal artery and capsule of the posterior knee, or iPACK block, together with the Adductor Canal block (ACB), has been described and shows promise in providing analgesia to the knee joint. However, the effect of these two blocks on postoperative pain levels, functional recovery, and stress response is uncertain. This study compares a preoperative iPACK and ACB block to Sham blocks before total knee arthroplasty under spinal anesthesia.
- Being tested
- Ropivacaine 0.2% Injectable Solution, 0.9%sodium chloride
- Keywords
- iPACK, Adductor Canal Block, pain management, multimodal analgesia, peripheral nerve block, knee arthroplasty
- Medical subject headings
- Osteoarthritis, Knee, Agnosia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Ropivacaine 0.2% Injectable SolutionDrug
Also called Ropimol
20 mL 0.5% ropivacaine was injected into the PENG block
20 mL 0.5% ropivacaine was injected into the Adductor Canal block
0.9%sodium chlorideDrug
Also called normal saline
20 mL 0.9% sodium chloride was injected into the PENG block
20 mL 0.5% sodium chloride was injected into the Adductor Canal block
| Study group | Role | What they receive |
|---|---|---|
| iPACK block+ABC block | Active comparator | Patients received a preoperative ultrasound-guided iPACK block with 20 mL of 0.25% ropivacaine and an Adductor Canal block with 20mL 0.25% ropivacaine. Receives: Drug: Ropivacaine 0.2% Injectable Solution |
| Sham blocks | Active comparator | Patients received a preoperative ultrasound-guided iPACK block with 20 mL of 0.9% normal saline and an Adductor Canal block with 20mL 0.9% normal saline. Receives: Drug: 0.9%sodium chloride |
What is being measured
The primary outcome is the main question the study is designed to answer.
postoperative Numeric Pain Rating Scale
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 24 hours after surgery
postoperative Numeric Pain Rating Scale et rest
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 48 hours after surgery
postoperative Numeric Pain Rating Scale et rest
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 72 hours after surgery
postoperative Numeric Pain Rating Scale et rest
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 96 hours after surgery
postoperative Numeric Pain Rating Scale during active flexion
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 48 hours after surgery
postoperative Numeric Pain Rating Scale during active flexion
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 72 hours after surgery
postoperative Numeric Pain Rating Scale during active flexion
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
Measured: 96 hours after surgery
Secondary outcomes (6)
Postoperative opioid consumption
milligrams of intravenous morphine equivalents
Measured: 96 hours after surgery
Neutrophil-to-lymphocyte ratio
Neutrophil-to-lymphocyte ratio
Measured: 12 hours after surgery
Neutrophil-to-lymphocyte ratio
Neutrophil-to-lymphocyte ratio
Measured: 24 hours after surgery
Platelet-to-lymphocyte ratio
Platelet-to-lymphocyte ratio
Measured: 12 hours after surgery
Platelet-to-lymphocyte ratio
Platelet-to-lymphocyte ratio
Measured: 24 hours after surgery
Time to first opioid administration
Hours to first administration of an intravenous opioid drug
Measured: 96 hours postoperatively
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Oct 2023
- Study start18 Jun 2020
- Primary completion20 Jul 2022
- Study completion24 Aug 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Knee OsteoarthritisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- randomized, double-blind, placebo-controlled
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 361 participants (actual)
Sponsor and investigators
- Lead sponsor
- Poznan University of Medical Sciences
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Zbigniew Żaba, Ph.D., Study chair, Department of Emergency Medicine ClinicMalgorzata Domagalska, Ph.D., Principal investigator, Department of Palliative Medicine, University of Medical Sciences, Poznań, Poland
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06086483
- Sponsor's protocol ID
- 495/2020
- Status last verified
- Oct 2023
- First submitted
- 11 Oct 2023
- Last updated
- 17 Oct 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The data presented in this study are available on request from the corresponding author.
Study at a glance
From the registry record, last updated by the sponsor on 17 Oct 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pain Management and Functional Recovery After Adductor Canal Block Combined With iPACK Block for Total Knee Arthroplasty. A Prospective, Randomized, Double-blinded Clinical Trial.
- ClinicalTrials.gov ID
- NCT06086483
- Acronym / sponsor ID
- 495/2020
- Keywords
- iPACK, Adductor Canal Block, pain management, multimodal analgesia, peripheral nerve block, knee arthroplasty
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 361 participants (actual)
- Lead sponsor
- Poznan University of Medical SciencesUniversity, hospital or other
- Study start
- 18 Jun 2020 (actual)
- Primary completion
- 20 Jul 2022 (actual)
- Study completion
- 24 Aug 2023 (actual)
- First posted
- 17 Oct 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This randomized, double-blinded, placebo-controlled trial sought to evaluate the efficacy of the iPACK block with Adductor Canal Block on postoperative pain, functional recovery and NLR and PLR levels.
Detailed description
The Interspace between the popliteal artery and capsule of the posterior knee, or iPACK block, together with the Adductor Canal block (ACB), has been described and shows promise in providing analgesia to the knee joint. However, the effect of these two blocks on postoperative pain levels, functional recovery, and stress response is uncertain. This study compares a preoperative iPACK and ACB block to Sham blocks before total knee arthroplasty under spinal anesthesia.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
- Model description
- randomized, double-blind, placebo-controlled
| Arm | Type | Receives |
|---|---|---|
| iPACK block+ABC block | Active comparator | Drug: Ropivacaine 0.2% Injectable SolutionPatients received a preoperative ultrasound-guided iPACK block with 20 mL of 0.25% ropivacaine and an Adductor Canal block with 20mL 0.25% ropivacaine. |
| Sham blocks | Active comparator | Drug: 0.9%sodium chloridePatients received a preoperative ultrasound-guided iPACK block with 20 mL of 0.9% normal saline and an Adductor Canal block with 20mL 0.9% normal saline. |
Who may qualify
- Ages
- 18 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Patients > 18 years old undergoing unilateral total knee arthroplasty
Key exclusion criteria (4 listed)
- refusal to participate
- < 18 yo
- Chronic opioid use
- localized infection
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Ropivacaine 0.2% Injectable SolutionAlso: Ropimol20 mL 0.5% ropivacaine was injected into the PENG block 20 mL 0.5% ropivacaine was injected into the Adductor Canal block | Drug | iPACK block+ABC block |
| 0.9%sodium chlorideAlso: normal saline20 mL 0.9% sodium chloride was injected into the PENG block 20 mL 0.5% sodium chloride was injected into the Adductor Canal block | Drug | Sham blocks |
Primary outcome
postoperative Numeric Pain Rating Scale
Time frame: 24 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
postoperative Numeric Pain Rating Scale et rest
Time frame: 48 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
postoperative Numeric Pain Rating Scale et rest
Time frame: 72 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
postoperative Numeric Pain Rating Scale et rest
Time frame: 96 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
postoperative Numeric Pain Rating Scale during active flexion
Time frame: 48 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
postoperative Numeric Pain Rating Scale during active flexion
Time frame: 72 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
postoperative Numeric Pain Rating Scale during active flexion
Time frame: 96 hours after surgery
Numeric Pain Rating Scale. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")
6 secondary outcomes
Postoperative opioid consumption
Time frame: 96 hours after surgery
Neutrophil-to-lymphocyte ratio
Time frame: 12 hours after surgery
Neutrophil-to-lymphocyte ratio
Time frame: 24 hours after surgery
Platelet-to-lymphocyte ratio
Time frame: 12 hours after surgery
Platelet-to-lymphocyte ratio
Time frame: 24 hours after surgery
Time to first opioid administration
Time frame: 96 hours postoperatively
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Oct 2023.
- Individual participant dataSharing planned: Yes. The data presented in this study are available on request from the corresponding author.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Zbigniew Żaba, Ph.D. study chair
Department of Emergency Medicine Clinic
Malgorzata Domagalska, Ph.D. principal investigator
Department of Palliative Medicine, University of Medical Sciences, Poznań, Poland
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Ropivacaine 0.2% Injectable Solution and 0.9%sodium chloride in people with Knee Osteoarthritis and Knee Arthritis, run by Poznan University of Medical Sciences at 1 site in Poland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Poland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
postoperative Numeric Pain Rating Scale (time frame: 24 hours after surgery). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Oct 2023.