Trial Outcomes & Findings for Comparison of Intra-articular Dexmedetomidine and Magnesium in Postoperative Pain (NCT NCT03479216)

NCT ID: NCT03479216

Last Updated: 2018-11-13

Results Overview

postoperative pain scores (rest and movement) (ward) Pain scores were assessed with a 10-cm Visual Analogue Scale (VAS) (with 0 = no pain and 10 = the worst imaginable pain)

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

62 participants

Primary outcome timeframe

24 hours

Results posted on

2018-11-13

Participant Flow

History of cardiac, hepatic or renal disorders, diabetes mellitus, chronic pain treatment, contraindication to/refusal of spinal anesthesia, a known allergy to the study drugs, or who refused to participate in the study were excluded. (10 patients excluded: 5 declined regional anesthesia, 4 had diabetes mellitus,1 failure of regional anesthesia)

52 patients aged between 18 and 65 years with ASA I or II who were scheduled for elective arthroscopic meniscectomy under spinal anesthesia were included in this prospective, randomized, double-blind study.

Participant milestones

Participant milestones
Measure
Precedex
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Overall Study
STARTED
31
31
Overall Study
COMPLETED
26
26
Overall Study
NOT COMPLETED
5
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Precedex
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Overall Study
Withdrawal by Subject
3
2
Overall Study
Physician Decision
2
3

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Total
n=52 Participants
Total of all reporting groups
Age, Continuous
41.62 years
n=26 Participants
42.73 years
n=26 Participants
42.18 years
n=52 Participants
Sex: Female, Male
Female
6 Participants
n=26 Participants
4 Participants
n=26 Participants
10 Participants
n=52 Participants
Sex: Female, Male
Male
20 Participants
n=26 Participants
22 Participants
n=26 Participants
42 Participants
n=52 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
Turkey
26 Participants
n=26 Participants
26 Participants
n=26 Participants
52 Participants
n=52 Participants

PRIMARY outcome

Timeframe: 24 hours

Population: visual analogue scale (VAS) scores at rest at 2nd hour (VAS2 R), 4th hour (VAS4 R), 6th hour (VAS6 R), 8th hour (VAS8 R), 12th hour (VAS12 R), 18th hour (VAS18 R) VAS scores at movement at 2nd hour (VAS2 M), 4th hour (VAS4 M), 6th hour (VAS6 M), 8th hour (VAS8 M), 12th hour (VAS12 M), 18th hour (VAS18 M)

postoperative pain scores (rest and movement) (ward) Pain scores were assessed with a 10-cm Visual Analogue Scale (VAS) (with 0 = no pain and 10 = the worst imaginable pain)

Outcome measures

Outcome measures
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Postoperative Pain
VAS 2 R
0 score on a scale
Interval 0.0 to 0.0
0.04 score on a scale
Interval 0.0 to 1.0
Postoperative Pain
VAS2 M
0.19 score on a scale
Interval 0.0 to 2.0
0.23 score on a scale
Interval 0.0 to 2.0
Postoperative Pain
VAS4 R
0.81 score on a scale
Interval 0.0 to 3.0
0.12 score on a scale
Interval 0.0 to 1.0
Postoperative Pain
VAS4 M
2.04 score on a scale
Interval 0.0 to 6.0
1.19 score on a scale
Interval 0.0 to 3.0
Postoperative Pain
VAS6 R
1.50 score on a scale
Interval 0.0 to 4.0
1.31 score on a scale
Interval 0.0 to 5.0
Postoperative Pain
VAS6 M
3.46 score on a scale
Interval 0.0 to 8.0
3.31 score on a scale
Interval 0.0 to 8.0
Postoperative Pain
VAS8 R
1.23 score on a scale
Interval 0.0 to 5.0
1.77 score on a scale
Interval 0.0 to 5.0
Postoperative Pain
VAS8 M
3.08 score on a scale
Interval 0.0 to 8.0
4.08 score on a scale
Interval 1.0 to 8.0
Postoperative Pain
VAS12 R
0.73 score on a scale
Interval 0.0 to 5.0
1.15 score on a scale
Interval 0.0 to 6.0
Postoperative Pain
VAS12 M
2.62 score on a scale
Interval 0.0 to 6.0
3.19 score on a scale
Interval 2.0 to 8.0
Postoperative Pain
VAS18 R
0.23 score on a scale
Interval 0.0 to 1.0
0.27 score on a scale
Interval 0.0 to 2.0
Postoperative Pain
VAS18 M
1.62 score on a scale
Interval 0.0 to 4.0
1.69 score on a scale
Interval 0.0 to 4.0

SECONDARY outcome

Timeframe: 24 hours

nonsteroid antiinflammatory drugs (NSAID) or opioid drugs that are applied to patients will be noted.

Outcome measures

Outcome measures
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Postoperative Opioid/NSAID Consumption
NSAID
17 vials
14 vials
Postoperative Opioid/NSAID Consumption
opioid
0 vials
1 vials

SECONDARY outcome

Timeframe: 24 hours

Population: Time to first analgesic demand at the orthopedics ward (from intra-articular injection to first analgesic requirement) was calculated in minutes among patients who required analgesics

Time to first analgesic demand at the orthopedics ward (from intraarticular injection to first analgesic requirement)

Outcome measures

Outcome measures
Measure
Precedex
n=15 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=13 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Rescue Analgesic Time
477.33 minutes
Interval 240.0 to 840.0
498.46 minutes
Interval 330.0 to 750.0

SECONDARY outcome

Timeframe: 24 hours

time from skin incision to closure

Outcome measures

Outcome measures
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Surgery Time
24.23 minutes
Interval 15.0 to 35.0
25.58 minutes
Interval 15.0 to 40.0

SECONDARY outcome

Timeframe: 24 hours

time from the start of spinal anesthesia (total block = Bromage 3) to the end of spinal anesthesia (Bromage 0)

Outcome measures

Outcome measures
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Time to the End of Spinal Anesthesia
148.1 minutes
Interval 60.0 to 320.0
147.5 minutes
Interval 70.0 to 300.0

SECONDARY outcome

Timeframe: 24 hours

First mobilization time after surgery

Outcome measures

Outcome measures
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Mobilization
143.27 minutes
Interval 75.0 to 300.0
139.42 minutes
Interval 75.0 to 300.0

SECONDARY outcome

Timeframe: 24 hours

post-injection complications due to intraarticular injection will be noted.

Outcome measures

Outcome measures
Measure
Precedex
n=26 Participants
5ml 0.25% Bupivacaine ve 50mcg Dexmetedomidin (diluted to 5ml with normal saline) intraarticularly at the end of surgery (total volume: 10 ml) Precedex: 10 ml of Bupivacaine ve 50mcg Dexmetedomidin mixture will be injected intraarticularly at the end of the surgery.
Magnesium Sulfate
n=26 Participants
5ml 0.25% Bupivacaine ve 5ml Magnesium Sulfate intraarticularly at the end of surgery (total volume: 10 ml) Magnesium Sulfate: 10 ml of Bupivacaine ve magnesium sulfate mixture will be injected intraarticularly at the end of the surgery.
Number of Participants With Complications Due to Intraarticular Injection
0 Participants
0 Participants

Adverse Events

Precedex

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Magnesium Sulfate

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Hande Aytuluk

Derince Training and Research Hospital

Phone: 00905336515650

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place