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Total Knee ArthroplastyNCT05447871

Single-injection Modified 4 in 1 Block as Postoperative Analgesia in Total Knee Arthroplasty

A study testing Ultrasound guided single injection modified 4 in 1 block technique, Ultrasound guided adductor canal block technique and Bupivacaine 0.25% in people with Total Knee Arthroplasty, run by Mansoura University at 1 site in Egypt.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Patients suffer from moderate to severe pain after TKA. Patients are asked to begin functional exercise as early as possible after surgery, and that requires adequate control of postoperative pain. Regional anesthesia divides into non-motor sparing peripheral nerve blocks as femoral n. block and sciatic n. Read more about this study

Who is it for?
Ages 50 to 80 years
Conditions the study is for
Total Knee Arthroplasty
What is being tested?
Ultrasound guided single injection modified 4 in 1 block technique, Ultrasound guided adductor canal block technique and Bupivacaine 0.25%
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
1 siteEgypt
Study dates
Jul 2022to Jul 2023
Phase
Interventional
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 50 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Body mass index (BMI) of 19-30 kg/m2
  • American Society of Anesthesiologists (ASA) functional status of I-III

Who cannot join

  • Drug hypersensitivity
  • coagulopathy
  • infection at the site of injection
  • Traumatic arthirits

Trial locations and contacts

1 site in 1 country.

Samah A Gouda, MD contact

00201002262557

Sk_20022000@yahoo.com

Egypt1 site
  • Mansoura University

    Al Mansurah, DK, 050

    Gehan A Trabeeh, MD, 00201061618512, gehan_tarbeeh2011@hotmail.com

    Samah A Gouda, MD, 00201002262557, Sk_20022000@yahoo.com

Other trials in Egypt

About this study

Official title: Single-injection Modified 4 in 1 Block Versus Adductor Canal Block as Postoperative Analgesia in Total Knee Arthroplasty

Patients suffer from moderate to severe pain after TKA. Patients are asked to begin functional exercise as early as possible after surgery, and that requires adequate control of postoperative pain. Regional anesthesia divides into non-motor sparing peripheral nerve blocks as femoral n. block and sciatic n. block and motor sparing peripheral nerve block as adductor canal block and IPACK but these blocks have many drawbacks.

So new studies found that a modified 4 in-1 block blocks all these nerves and produces adequate analgesia without sparing areas.

Read the detailed description

Total knee arthroplasty (TKA) is regarded as the most effective method to reduce knee pain and improve knee function in patients with advanced knee osteoarthritis. Postoperative pain is an unpleasant experience for TKA and this pain might greatly influence patients' early rehabilitation.

Almost 60% of patients suffer moderate to severe pain after TKA and 25% of them could even develop related complications, such as longer hospitalization stays, unanticipated hospital admissions, readmissions, etc.

With the development of enhanced recovery after surgery, patients are asked to begin exercise as early as possible after surgery, and that requires adequate control of postoperative pain.

Multimodal systemic analgesia plays an essential role in controlling postoperative pain after TKA by controlling the inflammatory process, dealing with the neuropathic component of pain, and thus reducing the severity of pain.

Multimodal analgesia includes more than one pain-control modality (systemic analgesia and regional anaesthesia). Systemic analgesia includes acetaminophen, nonsteroidal anti-inflammatory drugs, steroids and opioids. Regional anaesthesia includes epidural analgesia, femoral n. block, adductor canal block, sciatic n. block, IPACK, etc. Regional anaesthesia divides into non-motor sparing peripheral nerve blocks as femoral n. block and sciatic n. block and motor sparing peripheral nerve block as adductor canal block and IPACK.

But these blocks have many drawbacks. Femoral n. block is associated with quadriceps muscle weakness leading to delay in patient's mobility. Sciatic n. block also causes foot drop. The Adductor canal block does not cover the skin on the back of the knee. Surgeons refuse IPACK because of diffusion of local anaesthetics disturbs the anatomy of the surgical field.

The Modified 4 in 1 block technique aims to block four nerves (saphenous nerve, obturator nerve, nerve to vastus medialis and sciatic nerve) through a single injection point by spreading up to the adductor canal in midthigh and below to the popliteal fossa. The investigator will conduct this randomized clinical trial to evaluate the quality of postoperative analgesia produced by a single injection modified 4 in 1 block and midsartorius adductor canal block with regard to total analgesic consumption in the first 24 hours postoperatively

Being tested
Ultrasound guided single injection modified 4 in 1 block technique, Ultrasound guided adductor canal block technique, Bupivacaine 0.25%

What participants receive

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

  • Ultrasound guided single injection modified 4 in 1 block techniqueProcedure or surgery

    A high-frequency ultrasound probe is placed over the femoral condyle and vastus medialis muscle is identified. The probe is slid proximally till the superficial femoral artery appeared. The probe is slid proximally till the descending genicular artery branching from the superficial femoral artery. The point of interest is 8-10 cm above the femoral condyle. The needle is guided into the Vastus medialis muscle till the nerve to Vastus medialis. At this point, 5-7 mL of the local anaesthetic drug is injected. The needle is guided further in-plane from lateral to medial side to reach the perivascular region and after negative aspiration 25 ml local anaesthetic drug is injected.

  • Ultrasound guided adductor canal block techniqueProcedure or surgery

    The Adductor canal is identified in the middle of the thigh beneath the sartorius muscle using a high-frequency ultrasonic transducer. the probe is slid till the superficial femoral artery appeared in the adductor canal between vastus medialis and adductor longus muscle. A 22-gauge spinal needle is inserted in a lateral to medial plane to reach the perivascular region and after negative aspiration 20 ml local anaesthetic drug is injected, visualised to push the femoral artery.

  • Bupivacaine 0.25%Drug

    bupivacaine 0.25%

Study groups in NCT05447871
Study groupRoleWhat they receive
Ultrasound guided single injection modified 4 in 1 block techniqueExperimentalPatients in this group will receive ultrasound guided single injection modified 4 in 1 block with 25 ml bupivacaine 0.25%
Receives: Procedure: Ultrasound guided single injection modified 4 in 1 block technique; Drug: Bupivacaine 0.25%
Ultrasound guided adductor canal block techniqueActive comparatorPatients in this group will receive ultrasound guided aduuctor canal block with 20 ml bupivacaine 0.25%
Receives: Procedure: Ultrasound guided adductor canal block technique; Drug: Bupivacaine 0.25%

What is being measured

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

  1. Total amount of postoperative analgesia in first 24 hours

    calculate total amount of morphine hydrochloride which patient will need in first 24 hours postoperative.

    Measured: in first 24 hours

Secondary outcomes (6)
  1. Duration of sensory block.

    return of pinbrick sensation on the lateral aspect of the foot (S1)

    Measured: 3, 6, 12, 24 hours postoperative

  2. Duration of motor block.

    motor block is tested and recoded every 30 min till Bromage score is zero

    Measured: 3, 6, 12, 24 hours postoperative

  3. Total distance patient will be able to ambulate on first postoperative day

    the distance that patient will be able to walk on the first postoperative day (meters)

    Measured: on first postoperative day

  4. intraoperative non invasive blood pressure(NIBP) mmHg

    NIBP will be measured and recorded.

    Measured: every 10 minutes after spinal anesthesia till the end of the surgery

  5. intraoperative heart rate beat per minute

    heart rate will be monitored and recorded.

    Measured: every 10 minutes after spinal anesthesia till the end of the surgery.

  6. postoperative hypotension mmHg

    blood pressure will be measured and recorded

    Measured: at 1, 3, 6, 12 hours postoperative

Timeline

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

  1. First posted7 Jul 2022
  2. Study startJul 2022 (estimated)
  3. Primary completionJan 2023 (estimated)
  4. Study completionJul 2023 (estimated)

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 N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05447871
Sponsor's protocol ID
MFM-IRB: MD. 22.03.629
Status last verified
Jul 2022
First submitted
22 Jun 2022
Last updated
7 Jul 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Yes, Study Protocol Statistical Analysis Plan (SAP) Informed Consent Form (ICF) Clinical Study Report (CSR) Supporting Information:

Questions about this trial

What is this clinical trial studying?

A study testing Ultrasound guided single injection modified 4 in 1 block technique, Ultrasound guided adductor canal block technique and Bupivacaine 0.25% in people with Total Knee Arthroplasty, run by Mansoura University at 1 site in Egypt.

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 2 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: status not confirmed, as of the sponsor's last update on 7 Jul 2022. 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 Egypt. 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.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Gehan A Trabeeh, MD (00201061618512, gehan_tarbeeh2011@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Total amount of postoperative analgesia in first 24 hours (time frame: in first 24 hours). 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 7 Jul 2022.

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