Efficacy of Adrenaline in Periarticular Analgesic Injection on Postoperative Pain Control After Total Knee Arthroplasty

June 8, 2018 updated by: Chaturong Pornrattanamaneewong, Mahidol University

Efficacy of Adrenaline in Periarticular Analgesic Injection on Postoperative Pain Control After Total Knee Arthroplasty: A Randomized Controlled Trial

Multimodal anesthetic drug injection has been used extensively and the results of many studies suggest that postoperative pain can relief and improve the postoperative satisfaction of patients. Adrenaline is a combination of multimodal anesthetic cocktail to relieve pain. It is believed that Adrenaline causes vasoconstriction, reduces absorption of anesthetic drug into the system circulation. Currently, a comparative study on the effect of pain reduction of Adrenaline injection in the anesthetic cocktail is relatively low. There are different doses in each institution. In addition, the use of new anesthetic is Levobupivacaine that has more vasoconstrictive effect compare with traditional Bupivacaine. It also reduces the side effects of systemic and cardiotoxic effect. Therefore, the investigators think that It may not be necessary to mix Adrenaline in the multimodal anesthetic drug. Levobupivacaine already to avoid the potential side effects of Adrenaline.

Study Overview

Status

Unknown

Conditions

Detailed Description

The patients will be divided into two groups. In group 1, the multimodal anesthetic cocktail consisted of 100 mg Levobupivacaine (0.5%, 20 mL) and 30 mg ketorolac (1 ml). In group 2, the multimodal anesthetic cocktail consisted of 100 mg Levobupivacaine (0.5%, 20 mL), 30 mg ketorolac (1 ml) and 0.6 mg 1:1000 epinephrine (0.6 ml). Both groups were mixed with a 0.9% normal saline solution to a total volume of 100 ml. The outcome research assistant who collects data was blinded to the treatment groups. Patients will be treated with the routine standard regimen for total knee arthroplasty. Surgeons will use same surgical techniques through a standard medial parapatellar approach. In addition, standardized posterior-stabilized TKA (Zimmer Nexgen LPS flex) was used in all patients. After bone cutting before inserting the actual implant, the assistant scrub nurse in the operating room will open the envelope that the patient was classified in group 1 or group 2 and perform mixing according to the prescribed medication. The doctor who undergoes surgery was blinded. The anesthetic cocktail was divided into 4 parts 25 ml each and it was injected into 4 areas. First 25 ml cocktail was injected into the posterior capsule (P), posteromedial (PM) and posterolateral capsule (PL). The second part was injected into the medial gutter (M). The third part was injected into the lateral gutter and the forth part was injected into quadriceps muscle, retinacula tissues, pes anserinus, suprapatellar and infrapatellar fat pads (A). During the first 48 hours, all patients received intravenous morphine prn for pain, as well as dynastat, Tylenol with codeine, as required, for control of pain. After 48 hours, the pain was controlled by oral intravenous morphine and medication as requires until the patient was discharged from the hospital.

The primary outcome measure was the severity of postoperative pain during the first 48 hours after surgery. The pain was assessed by a Visual Analogue Scale (VAS) ranging from 0 (no pain) to 10 (extreme pain) every 6 hours postoperatively. Secondary outcome measures compared the consumption of intravenous morphine, which was measured every six hours in 48 hours after surgery. Additionally, blood loss in the drain at 24, 48 hours was recorded. Any complications following surgery were recorded.

Study Type

Interventional

Enrollment (Anticipated)

82

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Bangkok, Thailand, 10700
        • Recruiting
        • Chaturong Pornrattanamaneewong
        • Contact:
        • Contact:
        • Sub-Investigator:
          • Suphawat Tantithawornwat, MD
        • Sub-Investigator:
          • Chaturong Pornrattanamaneewong, MD
        • Principal Investigator:
          • Keerati Chareancholvanich, MD
        • Sub-Investigator:
          • Rapeepat Narkbunnam, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with primary knee osteoarthritis
  • Aged between 40 and 80 years
  • Must be able to understand and willing to follow instructions

Exclusion Criteria:

  • Patients unable to undergo anesthesia during surgery by spinal block or adductor block
  • Patients with the history of levobupivacaine, etoricoxib drug allergy
  • Patients with the history of allergic or nausea vomiting severely when receiving morphine
  • Patients with kidney disease who have a creatinine clearance of less than 50 ml/min, cirrhosis, cardiovascular disease, stroke, poorly controlled hypertension
  • Patients with the history of venous thrombosis
  • Patients with complications during surgery such as torn ligaments
  • Patients who refuse to participate in the research.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: MAC with adrenaline
the multimodal anesthetic cocktail (MAC) consisted of 100 mg Levobupivacaine (0.5%, 20 mL) 30 mg ketorolac (1 ml) and 0.6 mg 1:1000 epinephrine (0.6 ml). They were mixed with a 0.9% normal saline solution to a total volume of 100 ml.
In group 1, the multimodal anesthetic cocktail consisted of 100 mg Levobupivacaine (0.5%, 20 mL) 30 mg ketorolac (1 ml) and 0.6 mg 1:1000 epinephrine (0.6 ml). In group 2, the multimodal anesthetic cocktail consisted of 100 mg Levobupivacaine (0.5%, 20 mL) and 30 mg ketorolac (1 ml). Both groups were mixed with a 0.9% normal saline solution to a total volume of 100 ml.
Other Names:
  • 100 mg Levobupivacaine (0.5%, 20 mL)
  • 30 mg ketorolac (1 ml)
NO_INTERVENTION: MAC without adrenaline
the multimodal anesthetic cocktail (MAC) consisted of 100 mg Levobupivacaine (0.5%, 20 mL) and 30 mg ketorolac (1 ml). They were mixed with a 0.9% normal saline solution to a total volume of 100 ml.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
the severity of postoperative pain
Time Frame: The first 48 hours after surgery
The pain was assessed by a Visual Analogue Scale (VAS) ranging from 0 (no pain) to 10 (extreme pain) every 6 hours postoperatively.
The first 48 hours after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
the consumption of intravenous morphine
Time Frame: The first 48 hours after surgery
the consumption of intravenous morphine, which was measured every six hours
The first 48 hours after surgery
blood loss in the drain
Time Frame: at 24, 48 hours after surgery
blood loss in the radivac drain
at 24, 48 hours after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Keerati Chareancholvanich, MD, Mahidol University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

January 26, 2018

Primary Completion (ANTICIPATED)

October 31, 2018

Study Completion (ANTICIPATED)

October 31, 2018

Study Registration Dates

First Submitted

May 25, 2018

First Submitted That Met QC Criteria

June 6, 2018

First Posted (ACTUAL)

June 7, 2018

Study Record Updates

Last Update Posted (ACTUAL)

June 12, 2018

Last Update Submitted That Met QC Criteria

June 8, 2018

Last Verified

June 1, 2018

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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