Trial Outcomes & Findings for Analgesic Value of Adductor Canal vs Femoral Block After Total Knee Arthroplasty (NCT NCT03395990)

NCT ID: NCT03395990

Last Updated: 2020-06-17

Results Overview

Pain intensity prior to intervention and at 5 minute intervals after intervention. The 11-point Numeric Rating Scale quantifies a subject's pain experience from 0/10 (no pain) to 10/10 (worst pain imaginable).

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

16 participants

Primary outcome timeframe

Baseline, up to 30 minutes.

Results posted on

2020-06-17

Participant Flow

Participant milestones

Participant milestones
Measure
Chloroprocaine
15 ml of 2% chloroprocaine via a femoral nerve block technique Active comparator: chloroprocaine: 15 ml of 2% chloroprocaine was placed under ultrasound guidance adjacent to the femoral nerve in the operative limb.
Saline
15 ml of 0.9% saline via a femoral nerve block technique Sham comparator: saline: 15 ml of normal saline was placed under ultrasound guidance adjacent to the femoral nerve in the operative limb.
Overall Study
STARTED
8
8
Overall Study
COMPLETED
8
8
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Analgesic Value of Adductor Canal vs Femoral Block After Total Knee Arthroplasty

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Chloroprocaine
n=8 Participants
15 ml of 2% chloroprocaine via a femoral nerve block technique Active comparator: chloroprocaine: 15 ml of 2% chloroprocaine was placed under ultrasound guidance adjacent to the femoral nerve in the operative limb.
Saline
n=8 Participants
15 ml of 0.9% saline via a femoral nerve block technique Sham comparator: saline: 15 ml of normal saline was placed under ultrasound guidance adjacent to the femoral nerve in the operative limb.
Total
n=16 Participants
Total of all reporting groups
Age, Continuous
68 years
n=99 Participants
68 years
n=107 Participants
68 years
n=206 Participants
Sex: Female, Male
Female
2 Participants
n=99 Participants
6 Participants
n=107 Participants
8 Participants
n=206 Participants
Sex: Female, Male
Male
6 Participants
n=99 Participants
2 Participants
n=107 Participants
8 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants
n=99 Participants
8 Participants
n=107 Participants
16 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
Race (NIH/OMB)
White
7 Participants
n=99 Participants
7 Participants
n=107 Participants
14 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
8 participants
n=99 Participants
8 participants
n=107 Participants
16 participants
n=206 Participants

PRIMARY outcome

Timeframe: Baseline, up to 30 minutes.

Pain intensity prior to intervention and at 5 minute intervals after intervention. The 11-point Numeric Rating Scale quantifies a subject's pain experience from 0/10 (no pain) to 10/10 (worst pain imaginable).

Outcome measures

Outcome measures
Measure
Chloroprocaine
n=8 Participants
15 ml of 2% chloroprocaine via a femoral nerve block technique Active comparator: chloroprocaine: 15 ml of 2% chloroprocaine was placed under ultrasound guidance adjacent to the femoral nerve in the operative limb.
Saline
n=8 Participants
15 ml of 0.9% saline via a femoral nerve block technique Sham comparator: saline: 15 ml of normal saline was placed under ultrasound guidance adjacent to the femoral nerve in the operative limb.
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
20 minutes post-block
3.0 units on a scale
Interval 1.5 to 3.0
6.0 units on a scale
Interval 4.0 to 7.0
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
Pre-block
7.0 units on a scale
Interval 5.5 to 8.0
6.0 units on a scale
Interval 6.0 to 7.5
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
5 minutes post-block
4.0 units on a scale
Interval 2.5 to 6.0
6.0 units on a scale
Interval 5.5 to 7.0
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
10 minutes post-block
4.0 units on a scale
Interval 2.0 to 5.0
6.5 units on a scale
Interval 6.0 to 8.0
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
15 minutes post-block
3.2 units on a scale
Interval 2.0 to 4.5
6.5 units on a scale
Interval 4.5 to 7.0
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
25 minutes post-block
3.0 units on a scale
Interval 1.5 to 3.0
5.5 units on a scale
Interval 4.0 to 7.0
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
30 minutes post-block
2.0 units on a scale
Interval 1.5 to 2.8
5.5 units on a scale
Interval 4.0 to 6.5

Adverse Events

Chloroprocaine

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

Saline

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

Jeff Gadsden

Duke University Medical Center

Phone: 919-681-6437

Results disclosure agreements

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