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Popliteal Plexus BlockPhase 4NCT03198403

The Effect of Popliteal Plexus Block on Pain After Total Knee Arthroplasty

A Phase 4 study testing Bupivacaine-epinephrine in people with Popliteal Plexus Block and Total Knee Arthroplasty, run by Regionshospitalet Silkeborg at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study aims to investigate the effect of the Popliteal plexus block (PPB) on postoperative pain after total knee arthroplasty Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Bupivacaine-epinephrine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
17 participants
Where
1 siteDenmark
Study dates
1 Aug 2017to 28 Sep 2017
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patients undergoing total knee arthroplasty in spinal anesthesia
  • age > or = 18 years
  • American Society of Anesthesiologists (ASA) status I-III
  • Informed consent

Who cannot join

  • Patients unable to cooperate
  • Patients not able to speak Danish
  • Pregnancy
  • Contraindication towards ana Medical product used in the study
  • Preoperatively reduced sensation on the medial and lateral part of the lower leg
  • Patients with diabetic requiring Medical treatment
  • Preoperative daily intake of opioids

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Silkeborg Regionalhospital

    Silkeborg, 8600

Other trials in Denmark

About this study

Official title: The Effect of Popliteal Plexus Block on Postoperative Pain After Total Knee Arthroplasty

The study aims to investigate the effect of the Popliteal plexus block (PPB) on postoperative pain after total knee arthroplasty

Read the detailed description

Cadaver dissection studies have shown a spread of dye to the popliteal fossa and colored the popliteal plexus by injecting in the distal part of the adductor Canal.

The popliteal plexus is formed by contribution from the tibial and the obturator nerves.

Investigators hypothesized that a PPB may reduce postoperative pain after total knee arthroplasty.

Being tested
Bupivacaine-epinephrine

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Bupivacaine-epinephrineDrug

    Popliteal plexus block with 10 mL of bupivacaine-epinephrine 5 mg/mL + 5 microgram/mL.

Study groups in NCT03198403
Study groupRoleWhat they receive
Popliteal plexus blockExperimentalPatients with an FTB, reporting postoperative pain (NRS > 3) will have a popliteal plexus block
Receives: Drug: Bupivacaine-epinephrine
No interventionNo interventionPatients with postoperative pain NRS < or = 3

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The percentage of patients with postoperative pain NRS

    Evaluated as the percentage of patients with postoperative pain NRS >3, dropping in pain score to NRS = or < 3 after the PPB

    Measured: 0 - 60 minutes

Secondary outcomes (6)
  1. Percentage of patients having a femoral triangle block(FTB) reporting NRS > 3

    Percentage of patients having a FTB, reporting postoperative pain NRS >3

    Measured: Pain scores every 15 minutes (from end injection FTB to NRS>3 or 3 hours after full sensation of the leg)

  2. Onset time of PPB

    Time from end of injection of PPB to NRS = or < 3

    Measured: NRS every 5 minutes after PPB (From 0 - 60 minutes after PPB)

  3. Turn off time of spinal anesthesia

    Time from arrival in PACU to normal cutaneous sensation (measured by a neuro-pen, sensation=point 2) on the lateral part of the thigh and lateral part of the lower leg

    Measured: Time from arrival in PACU and during maximum 6 hours

  4. Correlation between normal cutaneous sensation and developing of pain

    Correlation between normal cutaneous sensation (measured by a neuro-pen, sensation=point 2) and developing of pain (NRS>3)

    Measured: From arrival in PACU and during maximum 6 hours

  5. The effect of the PPB on cutaneous sensation

    Tested on the lateral part of the lower leg

    Measured: NRS every 5 minutes after PPB (From 0 - 60 minutes after PPB)

  6. The effect of the PPB on muscle strength of the foot

    Dorsal flexion and plantar flexion in the ankle joint, measured with a handheld dynamometer

    Measured: Baseline and 1 hour after PPB

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jun 2017
  2. Study start1 Aug 2017
  3. Primary completion26 Sep 2017
  4. Study completion28 Sep 2017

Resources

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
Non-randomised
Intervention model
Parallel groups
Model description
Pilot Study
Masking
None (open label)
Enrolment
17 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03198403
Sponsor's protocol ID
2017-001644-35
Other IDs
2017
Status last verified
Sep 2017
First submitted
20 Jun 2017
Last updated
29 Sep 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Bupivacaine-epinephrine in people with Popliteal Plexus Block and Total Knee Arthroplasty, run by Regionshospitalet Silkeborg at 1 site in Denmark.

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 4 inclusion and 7 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 29 Sep 2017. 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 Denmark. 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?

The percentage of patients with postoperative pain NRS (time frame: 0 - 60 minutes). 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 29 Sep 2017.

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