Comparison of oral versus intravenous paracetamol and ibuprofen for pain relief after knee arthroscopy

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What is this study about?

This clinical trial aims to compare the effectiveness of oral versus intravenous pain medications for managing postoperative pain after knee arthroscopy. Knee arthroscopy is a minimally invasive surgical procedure used to diagnose and treat various knee conditions. The study will evaluate two different approaches to pain management: oral medications (ibuprofen and paracetamol tablets) versus intravenous medications (intravenous forms of ibuprofen and paracetamol).

During the study, participants will receive either oral or intravenous pain medications. The medications will be administered before and after the surgery. Sodium chloride solution will be used for intravenous infusions. Pain levels will be measured using a numerical scale that helps patients rate their pain intensity. Additional aspects being studied include the need for extra pain medication, time until discharge from the hospital, and any side effects such as nausea or vomiting.

The study is designed as a double-blinded trial, which means neither the patients nor the healthcare providers directly involved in patient care will know which type of pain medication (oral or intravenous) is being given. This approach helps ensure that the results are not influenced by expectations about which treatment might work better. The study will also look at how well patients recover and evaluate the cost-effectiveness of both treatment approaches.

1 Initial pain assessment

Your pain level will be measured using the Numeric Rating Scale (NRS) before the knee surgery procedure

This measurement serves as a baseline for comparing pain levels after surgery

2 Surgery and medication administration

You will undergo minor knee surgery under general anesthesia

Based on random assignment, you will receive either:

– Oral medication: paracetamol and ibuprofen taken by mouth

– Intravenous medication: paracetamol and ibuprofen given through a vein

You will also receive sodium chloride solution (salt water) through a vein during the procedure

3 Post-surgery monitoring

Your pain levels will be measured several times using the Numeric Rating Scale

If needed, additional pain relief medication may be provided

Medical staff will monitor for any feelings of nausea or vomiting

Your recovery will be assessed to determine when you can safely go home

4 Follow-up assessments

You will report your pain levels at the following times:

– 4 hours after leaving the hospital

– 24 hours after leaving the hospital

You will complete a Quality of Recovery questionnaire

You will need to keep track of any pain medication taken during the first 24 hours after surgery

Who Can Join the Study?

  • Scheduled for minor knee surgery under general anesthesia, including:
    – Arthroscopic meniscectomy (surgical removal of damaged meniscus tissue)
    – Synovectomy (removal of inflamed joint lining)
    – Diagnostic arthroscopy (examination of knee joint with a small camera)
    – Meniscus repair
    – Arthroscopic lavage (washing out of the knee joint)
  • Age 18 years or older
  • ASA physical status 1-3 (healthy to patients with moderate systemic disease) and suitable for same-day surgery
  • Body weight of 50 kg (110 pounds) or more
  • Able to provide voluntary written informed consent
  • Dutch speaking ability
  • Both men and women can participate

Who Cannot Join the Study?

  • Age below 18 years or above 65 years
  • Known allergies or hypersensitivity to pain medications
  • History of chronic pain conditions requiring regular medication
  • Current pregnancy or breastfeeding
  • Severe liver or kidney problems that affect medication processing
  • Taking medications that could interact with pain relievers used in the study
  • History of substance abuse or addiction to pain medications
  • Inability to follow study instructions or provide informed consent
  • Serious heart conditions or abnormal heart rhythm
  • Bleeding disorders or current use of blood thinners
  • Recent surgery (within last 3 months) other than knee arthroscopy
  • Active infections or fever
  • Uncontrolled high blood pressure
  • Severe stomach problems like ulcers or gastritis (inflammation of stomach lining)
  • Mental health conditions that could affect pain perception or reporting

Where you can join this trial?

Verified and Recommended Sites

No sites found in this category

Verified Sites

Site Name City Country Status
Katholieke Universiteit te Leuven Leuven Belgium

Other Sites

No sites found in this category

Want to learn more about this study or check if you can participate? Contact us.

Trial status

Country Status Recruitment Start
Belgium Belgium
Not recruiting
01.05.2024

Trial locations

Oral analgesics
These are pain-relieving medications taken by mouth in tablet or capsule form. They are used after knee arthroscopy surgery to manage post-operative pain. These medications are absorbed through the digestive system and then distributed throughout the body to provide pain relief.

Intravenous analgesics
These are pain-relieving medications that are administered directly into the bloodstream through an intravenous (IV) line. They are used after knee arthroscopy surgery to control post-operative pain. Because they are delivered directly into the blood, they typically provide faster pain relief compared to oral medications.

Postoperative pain – A type of acute pain that occurs after a surgical procedure, specifically following knee arthroscopy. The pain typically begins as the anesthesia wears off and varies in intensity depending on the extent of the surgical procedure. It involves both nociceptive pain from tissue damage and inflammatory responses in the surgical area. The pain signals are transmitted through the nervous system as a natural response to surgical trauma. This condition usually peaks within the first 24-48 hours after surgery and gradually diminishes as healing progresses.

Trial ID:
2024-510789-17-00
Protocol code:
OVIKA-trial S68618
Trial Phase:
Therapeutic confirmatory (Phase III)

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