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Arthritis KneeNCT06112548

The Efficiency of Periarticular Multimodal Drug Injection in Pain Management Following Primary Unilateral TKA

A study testing primary unilateral TKA, Bupivacain and ketorolac in people with Arthritis Knee and Pain, run by Damascus University at 1 site in Syria.

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

This interventional study aims to compare the effectiveness of local multimodal drug periarticular injection in TKA patients with the standard pain control regime that includes opioids, NSAIDs, and other analgesics. Read more about this study

Who is it for?
Ages 50 to 85 yearsHealthy volunteers can take part
Conditions the study is for
Arthritis Knee, Pain, Arthroplasty Complications
What is being tested?
primary unilateral TKA, Bupivacain and ketorolac
Could I receive a placebo?
No, everyone receives an active treatment
How many people
80 participants
Where
1 siteSyria
Study dates
1 Mar 2024to 30 Nov 2025
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 85 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • all patients with end-stage arthritis of the knee going primary unilateral total knee arthroplasty.

Who cannot join

  • inflammatory and secondary arthritis of the knee.
  • Patients who are allergic to one or more of the drugs used in the injections.
  • Patients who are already taking opioids for whatever reason or have a history of addiction.
  • BMI less than 20 and more than 35.
  • patients with intra-operative complications that would affect the outcomes measurement.
  • Patients who are going through complex primary or revision TKA.
  • Pregnancy, renal or liver failure.
  • Patients who are classified as grade 3 or more according to ASA.

Trial locations and contacts

1 site in 1 country.

Syria1 site
  • Damascus university

    Damascus

Other trials in Syria

About this study

Official title: The Efficiency of Periarticular Multimodal Drug Injection in Pain Management Following Primary Unilateral Total Knee Arthroplasty: a Randomized Controlled Trial

This interventional study aims to compare the effectiveness of local multimodal drug periarticular injection in TKA patients with the standard pain control regime that includes opioids, NSAIDs, and other analgesics.

The main questions The investigators strive to answer are:

Is there a significant difference in the severity of pain and functional outcomes when applying periarticular injections? Are there any increased complications when applying the periarticular injections?

Read the detailed description

The best pain control regime following TKA is controversial. While opioids have an excellent analgesic effect, they also have many side effects. The investigators are conducting a randomized controlled trial to compare the severity of pain following primary unilateral TKA when multimodal drug periarticular injunction is used with the standard pain control regime. The investigators will enroll patients undergoing primary unilateral TKA and randomly allocate them into one treatment group. The first will undergo the procedure with periarticular injection before the closure is composed of a mixture of 20ml of low body weight bupivacaine 5mg/ml plus 1ml of ketorolac 30mg/ml plus 0.5ml adrenaline 1mg/ml injected in medial and lateral retinaculum, medial and lateral collateral ligaments, quadriceps and patellar tendon, joint capsule, subcutaneous fat, and the second will go standard TKA with pain control using opioids, NSAIDS, and paracetamol. The severity of postoperative pain is the primary outcome studied, as well as preoperative complications and any drug side effects, the data will be collected by a fellow researcher who is blinded to the interventions, and the patients will be blinded too. Randomization will be done by a research fellow who is not involved in patient treatment or care.

Being tested
primary unilateral TKA, Bupivacain, ketorolac, epinephrine, Paracetamol
Keywords
total knee arthroplasty, arthritis, pain, injection
Medical subject headings
Pain, Arthritis

What participants receive

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

  • primary unilateral TKAProcedure or surgery

    Primary unilateral total knee arthroplasty with cruciate scarifying cemented DePuy Synthes PFC Sigma prosthesis.

  • BupivacainDrug

    low body weight (0.50%, 20cc) intraoperative periarticular injection

  • ketorolacDrug

    Also called Toradol

    1ml of 30mg/ml ketorolac intraoperative periarticular injection

  • epinephrineDrug

    Also called Adrenaline

    0.5ml Adrenaline 1mg/ml intraoperative periarticular injection

  • ParacetamolDrug

    IV Paracetamol [Ofirmev] introduced every 6 hours after surgery

  • KetorolacDrug

    IV Ketorolac {Toradol} introduced every 12 hours after surgery.

  • TramadolDrug

    IV Tramadol [Ultram] introduced when needed after surgery

Study groups in NCT06112548
Study groupRoleWhat they receive
TKA with pain management by multimodal periarticular injection.ExperimentalPatients going TKA and getting an injection of a mixture of 20ml of low body weight bupivacaine 5mg/ml plus 1ml of ketorolac 30mg/ml plus 0.5ml adrenaline 1mg/ml injected in medial and lateral retinaculum, medial and lateral collateral ligaments, quadriceps and patellar tendon, joint capsule, subcutaneous fat before closure.
Receives: Procedure: primary unilateral TKA; Drug: Bupivacain; Drug: ketorolac; Drug: epinephrine; Drug: Tramadol
TKA with pain management by IV/oral analgesics.ExperimentalPatients going TKA and getting a standard pain control regime of IV opioids when needed, IV ketorolac, and IV/oral paracetamol.
Receives: Procedure: primary unilateral TKA; Drug: Paracetamol; Drug: Ketorolac; Drug: Tramadol

What is being measured

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

  1. perception of pain - first assessment

    The severity of knee pain in the short postoperative period. As stated by the patient, on a scale of 0 to 10, 0 resents no pain at all, and 10 is the worst pain the participant can imagine.

    Measured: measured 12 hours after surgery.

  2. perception of pain - second assessment

    The severity of knee pain in the short postoperative period. As stated by the patient, on a scale of 0 to 10, 0 resents no pain at all, and 10 is the worst pain the participant can imagine.

    Measured: measured 24 hours after surgery.

  3. perception of pain - third assessment

    The severity of knee pain in the short postoperative period. As stated by the patient, on a scale of 0 to 10, 0 resents no pain at all, and 10 is the worst pain the participant can imagine.

    Measured: measured 48 hours after surgery.

  4. functional status - first assessment

    a "Knee Score" section (7 items) and a "Functional Score" section (3 items). Both sections are scored from 0 to 100 with lower scores being indicative of worse knee conditions and higher scores being indicative of better knee conditions. here, the investigator assesses the function section.

    Measured: first measurement four weeks after surgery.

  5. magnitude of disabling pain according to KSS - first assessment

    a "Knee Score" section (7 items) and a "Functional Score" section (3 items). Both sections are scored from 0 to 100, with lower scores being indicative of worse knee conditions and higher scores being indicative of better knee conditions. Here the investigator assesses the pain section.

    Measured: first measurement four weeks after surgery.

  6. magnitude of disabling pain according to KSS - second assessment

    a "Knee Score" section (7 items) and a "Functional Score" section (3 items). Both sections are scored from 0 to 100, with lower scores being indicative of worse knee conditions and higher scores being indicative of better knee conditions. Here the investigator assesses the pain section.

    Measured: first measurement six months after surgery.

  7. functional status - second assessment

    a "Knee Score" section (7 items) and a "Functional Score" section (3 items). Both sections are scored from 0 to 100 with lower scores being indicative of worse knee conditions and higher scores being indicative of better knee conditions. here, the investigator assesses the function section.

    Measured: second measurement six months after surgery.

  8. estimated total blood loss

    the total amount of lost blood in the perioperative period and will be calculated using the Gross formula which is estimated by hitting the patients' blood volume by the difference between pre and post-operative hematocrit value divided by the initial hematocrit value

    Measured: measured once 48 hours after surgery.

Secondary outcomes (3)
  1. perioperative complications

    complications such as Venous thromboembolism VTE, infection, drug side effects ETC

    Measured: if happened within 6 months of surgery

  2. opioids consumption - frequency

    the amount of consumed opioids measured by times of application in the close postoperative period

    Measured: measured once 48 hours after surgery.

  3. opioids consumption - dose

    the amount of consumed opioids measured by the dose used in the close postoperative period

    Measured: measured once 48 hours after surgery.

Timeline

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

  1. First posted1 Nov 2023
  2. Study start1 Mar 2024
  3. Primary completion1 Nov 2025
  4. Study completion30 Nov 2025

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06112548
Sponsor's protocol ID
UDMS-Orthopedics-3-2023
Status last verified
Mar 2026
First submitted
15 Feb 2023
Last updated
19 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Kurtz S, Mowat F, Ong K, Chan N, Lau E, Halpern M. Prevalence of primary and revision total hip and knee arthroplasty in the United States from 1990 through 2002. J Bone Joint Surg Am. 2005 Jul;87(7):1487-97. doi: 10.2106/JBJS.D.02441.

    PubMed 15995115
  • Hadley S, Day M, Schwarzkopf R, Smith A, Slover J, Zuckerman J. Is Simultaneous Bilateral Total Knee Arthroplasty (BTKA) as Safe as Staged BTKA? Am J Orthop (Belle Mead NJ). 2017 Jul/Aug;46(4):E224-E229.

    PubMed 28856350
  • Lavernia CJ, Alcerro JC, Rossi MD. Fear in arthroplasty surgery: the role of race. Clin Orthop Relat Res. 2010 Feb;468(2):547-54. doi: 10.1007/s11999-009-1101-6. Epub 2009 Sep 18.

    PubMed 19763716
  • Wheeler M, Oderda GM, Ashburn MA, Lipman AG. Adverse events associated with postoperative opioid analgesia: a systematic review. J Pain. 2002 Jun;3(3):159-80. doi: 10.1054/jpai.2002.123652. No abstract available.

    PubMed 14622770
  • Shoji H, Solomonow M, Yoshino S, D'Ambrosia R, Dabezies E. Factors affecting postoperative flexion in total knee arthroplasty. Orthopedics. 1990 Jun;13(6):643-9. doi: 10.3928/0147-7447-19900601-08.

    PubMed 2367246
  • Mahoney OM, Noble PC, Davidson J, Tullos HS. The effect of continuous epidural analgesia on postoperative pain, rehabilitation, and duration of hospitalization in total knee arthroplasty. Clin Orthop Relat Res. 1990 Nov;(260):30-7.

    PubMed 1977542
  • Sharma S, Iorio R, Specht LM, Davies-Lepie S, Healy WL. Complications of femoral nerve block for total knee arthroplasty. Clin Orthop Relat Res. 2010 Jan;468(1):135-40. doi: 10.1007/s11999-009-1025-1. Epub 2009 Aug 13.

    PubMed 19680735
  • Sinatra R, Chung KS, Silverman DG, Brull SJ, Chung J, Harrison DM, Donielson D, Weinstock A. An evaluation of morphine and oxymorphone administered via patient-controlled analgesia (PCA) or PCA plus basal infusion in postcesarean-delivery patients. Anesthesiology. 1989 Oct;71(4):502-7. doi: 10.1097/00000542-198910000-00005.

    PubMed 2478049
  • Allen GC, St Amand MA, Lui AC, Johnson DH, Lindsay MP. Postarthroscopy analgesia with intraarticular bupivacaine/morphine. A randomized clinical trial. Anesthesiology. 1993 Sep;79(3):475-80. doi: 10.1097/00000542-199309000-00010.

    PubMed 8363072
  • Smith I, Van Hemelrijck J, White PF, Shively R. Effects of local anesthesia on recovery after outpatient arthroscopy. Anesth Analg. 1991 Nov;73(5):536-9.

    PubMed 1952132
  • Lonner J. Role of liposomal bupivacaine in pain management after total joint arthroplasty. J Surg Orthop Adv. 2014 Spring;23(1):37-41. doi: 10.3113/jsoa.2014.0037.

    PubMed 24641895
  • Hendrix JM, Garmon EH. American Society of Anesthesiologists Physical Status Classification System. 2025 Feb 11. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK441940/

    PubMed 28722969
  • Haefeli M, Elfering A. Pain assessment. Eur Spine J. 2006 Jan;15 Suppl 1(Suppl 1):S17-24. doi: 10.1007/s00586-005-1044-x. Epub 2005 Dec 1.

    PubMed 16320034

Questions about this trial

What is this clinical trial studying?

A study testing primary unilateral TKA, Bupivacain and ketorolac in people with Arthritis Knee and Pain, run by Damascus University at 1 site in Syria.

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 8 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 19 Mar 2026. 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 Syria. 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?

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?

perception of pain - first assessment (time frame: measured 12 hours after surgery.). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06112548, which also lists 13 linked publications.

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 19 Mar 2026; AzTrials last refreshed its copy on 8 Nov 2026.

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