The Effect of Intravenous Dexketoprofen on the Severity and Incidence of Rebound Pain

June 10, 2026 updated by: Çağla Uzalp, Eskisehir Osmangazi University

Evaluation of the Effect of Intravenous Dexketoprofen on the Severity and Incidence of Rebound Pain in Patients Undergoing Interscalene Brachial Plexus Block

Orthopedic shoulder surgeries are associated with severe postoperative pain, particularly within the first 24-48 hours after surgery. In postoperative pain management, single or continue interscalene brachial plexus blocks, acetaminophen, nonsteroidal anti-inflammatory drugs (NSAIDs), and opioids administered as needed are commonly used as components of multimodal analgesia.

Rebound pain is defined as severe postoperative pain (VAS ≥ 7) occurring within the first 24 hours after resolution of the block. It is considered an adverse effect of regional anesthesia and typically develops 8-12 hours after a single-shot nerve block. Risk factors for rebound pain include pre-existing pain, female sex, younger age, bone surgery, lack of intraoperative dexamethasone administration, and inadequate analgesia.

The primary objective of this study is to evaluate the effect of intravenous dexketoprofen administered during the postoperative period on the incidence and severity of rebound pain in patients undergoing shoulder surgery with interscalene brachial plexus block

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

Sixty-six patients undergoing rotator cuff repair will receive standardized ISB and general anesthesia for the surgery.All patients will be administered 0.03 mg/kg of midazolam during the preoperative period and an interscalene brachial plexus block will be administered using 10 cc of %0.5 bupivacaine and 5 ml of normal saline.During induction under general anesthesia, the following will be administered: lidocaine 1 mg/kg, propofol 2-3 mg/kg, rocuronium 0.6 mg/kg, and remifentanyl 0.5 mcg/kg. Maintenance of anesthesia will be provided using a mixture of %2-3 sevoflurane, %50 air, and %50 oxygen, maintaining the bispectral index between 40 and 50.

Heart rate and blood pressure values will be titrated by increasing or decreasing the remifentanil infusion to ensure that the values remain within %20 of baseline or that the OAB remains above 65.

If the mean arterial pressure drops by more than %20, 5 mg of ephedrine will be administered.

At the end of the procedure, the surgical duration and the total intraoperative remifentanil dose administered will be recorded.

In the postoperative recovery room, patients who show no loss of sensation in the C5-C6 dermatome (over the deltoid muscle) on the pinprick test but report severe pain (VAS ≥ 4) will be considered to have had a failed block.

Under the postoperative analgesia protocol all patients will be equipped with an IV morphine patient-controlled analgesia (PCA) device. The solution will be prepared such that morphine is 0.5 mg / ml. PCA 1mg bolus dose will be delivered with 10 min lock-out time and all patients will be administered 1 gram of paracetamol at 8th 16th and 24th hours.

Patients will be randomly divided into 2 groups as Group K(Patients not receiving nonsteroidal anti-inflammatory drugs) and Group D(Patients receiving nonsteroidal anti-inflammatory drugs) In Group D (Patients receiving nonsteroidal anti-inflammatory drugs) cases, will be administered 25 miligram of dexketroprofen at 6th and 18th hours.

In the postoperative period, a researcher assessed the patient's visual pain scores (resting and movement), rebound pain intensity, timing, and duration, systolic blood pressure, mean arterial pressure, diastolic blood pressure, peripheral oxygen saturation, postoperative analgesic consumption, and postoperative complications will be recorded.

Patient follow-up will be concluded at the end of 24 hours.

Study Type

Interventional

Enrollment (Estimated)

66

Phase

  • Not Applicable

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

  • Turkey (Türkiye)
    • Odunpazarı
      • Eskişehir, Odunpazarı, Turkey (Türkiye), 26040
        • Eskisehir Osmangazi Universıty Faculty of Medicine
        • Contact:
        • Contact:
        • Principal Investigator:
          • Çağla Uzalp

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Age 18-70 years ASA score of I-III Arthroscopic shoulder surgery

Exclusion Criteria:

Patients who do not wish to participate in the study Creatinine clearance <50 mL/ min Patients for whom NSAID use is contraindicated due to heart failure, Patients with psychiatric or cognitive dysfunction that would impair their ability to assess visual analog scale (VAS) pain scores Patients for whom peripheral nerve block is contraindicated

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Group K
Under the postoperative analgesia protocol all patients will be administered 1 gr of paracetamol at 8th 16th and 24th hours and all patients will be equipped with an IV morphine patient-controlled analgesia (PCA) device.
Drug: ISB + paracetamol IV 3*1
ISB + paracetamol IV 3*1
Active Comparator: Group D
Under the postoperative analgesia protocol all patients will be administered 1 gram of paracetamol at 8th 16th and 24th hours and all patients receiving nonsteroidal anti-inflammatory drugs (25 miligram of dexketroprofen) at 6th and 18th hours. The patients will be equipped with an IV morphine patient-controlled analgesia (PCA) device.
Drug: ISB+ paracetamol IV 3*1 +deksketoprofen IV 2*1
ISB+ paracetamol IV 3*1 +deksketoprofen IV 2*1. 25 miligram of dexketroprofen

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Effect of intravenous dexketoprofen administered during the postoperative period on the severity and incidence of rebound pain
Time Frame: 24 hours
Rebound pain score(VAS ≥ 7) and incidence
24 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total opioid consumption
Time Frame: 24 hours
Total morphine patient control analgesia prepared 0.5 mg / ml. PCA 1 mg bolus dose will be delivered with 10 min lock-out time. Follow up morphine consumption at postoperative 24 hours
24 hours
Visual analog Scale
Time Frame: 24 hours
Visual analog scale at rest and movement (0 (no pain)-10 (unbearable pain))
24 hours

Collaborators and Investigators

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

Sponsor

Eskisehir Osmangazi University

Investigators

  • Study Chair: MERYEM ONAY, Eskisehir Osmangazi University Faculty Of Medıcıne

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Estimated)

May 13, 2026

Primary Completion (Estimated)

October 30, 2026

Study Completion (Estimated)

October 30, 2026

Study Registration Dates

First Submitted

June 1, 2026

First Submitted That Met QC Criteria

June 10, 2026

First Posted (Actual)

June 11, 2026

Study Record Updates

Last Update Posted (Actual)

June 11, 2026

Last Update Submitted That Met QC Criteria

June 10, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Esogü95

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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