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Analgesia After Knee Arthroscopy :Dexmedetomidine vs Fentanyl

Comparative Study Between Dexmedetomidine and Fentanyl as an Adjuvant to Intra-articular Bupivacaine for Postoperative Analgesia After Knee Arthroscopy.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04442906
Enrollment
45
Registered
2020-06-23
Start date
2020-07-01
Completion date
2020-12-01
Last updated
2021-01-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Analgesia

Keywords

dexmedetomidine, fentanyl, bupivacaine, knee arthroscopy, postoperative analgesia

Brief summary

The aim of this study is to evaluate analgesic effects Bupivacaine, Bupivacaine plus Dexmedetomidine and Bupivacaine plus Fentanyl in relieving pain after knee arthroscopic surgery.

Detailed description

Forty-five patients ASA I - II aged 21-45 years for elective knee arthroscopy were divided into 3 groups: Group B, BD and BF. Group B received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 ml saline. Group BD received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 ml dexmedetomidine (100 ug). Group BF received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 fentanyl (50 ug). The time of first request of analgesia and analgesic effect by VAS during the first 24 hr. postoperatively are recorded.

Interventions

DRUGDexmedetomidine

Group BD received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 ml dexmedetomidine (100 ug).

DRUGFentanyl

Group BF received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 fentanyl (50 ug)

DRUGBupivacain

Group B received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 ml saline.

Sponsors

Zagazig University
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Masking description

anesthetist not sharing in the study will assess patient

Intervention model description

analgesia for postoperative pain after knee arthroscopy: dexmedetomidine+bupivacaine, fentanyl+bupivacaine , bupivacaine

Eligibility

Sex/Gender
ALL
Age
21 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Either sex, * Age 21-45 years, * American Society of Anesthesia (ASA) I - II for elective knee arthroscopy.

Exclusion criteria

* The patients with history of hepatic and renal diseases, psychiatric disorders, * Prolonged intake of (NSAIDS, opioids and tricyclic antidepressant), * Allergy to study drugs and patient who received analgesics up to 24 hr. before surgery were excluded from this study.

Design outcomes

Primary

MeasureTime frameDescription
Duration of postoperative analgesiaFor 24 hours postoperativestart from intra-articular injection of the drug to the time of first request of analgesia

Secondary

MeasureTime frameDescription
pain intensity on mobilization of operated knee (dynamic)measured immediately preoperative 0 minute ( admission receiving area)measured by VAS on 0-10 cm scale(0- no pain and 10-the worst pain)
total dose of rescue analgesia ( pethidine)within 24 hours postoperativetotal consumption of rescue analgesia (pethidine) postoperative
The number of participants with bradycardia, itching and hypotensionWithin 24 hours postoperativeThe number of participants with bradycardia less than 50 beat per minute, itching and hypotension if mean arterial blood pressure less than 20% of basal )
patient satisfactionwithin 24 hours postoperativePatient satisfaction by five point Likert-Like verbal rating scale by asking the patient how they evaluate the experience with the analgesic management after the the surgery? (5-very satisfied, 4-satisfied, 3-neutral, 2-dissatisfied, 1-very dissatisfied)
pain intensity at rest (static)measured immediately preoperative 0 minute ( admission receiving area)measured by VAS on 0-10 cm scale (0- no pain and 10-the worst pain)

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026