Skip to content

Analgesic Benefits of Perineural Versus Intravenous Dexamethasone in Patients Receiving Sciatic Nerve Block

The Effects of Perineural Versus Intravenous Dexamethasone on Sciatic Nerve Blockade Outcomes

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01616173
Enrollment
80
Registered
2012-06-11
Start date
2012-06-30
Completion date
2013-06-30
Last updated
2014-11-20

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

Conditions

Fracture of Ankle

Keywords

Nerve Block, Anesthesia Recovery Period

Brief summary

Patients scheduled to have foot and ankle surgery will typically receive a single shot sciatic nerve block to serve as the primary anesthetic and as part of a multi-modal post-operative analgesic plan. The investigators are investigating the use of perineural dexamethasone together with local anesthetics can improve the quality of recovery for patients receiving sciatic nerve blocks for foot and ankle surgery.

Detailed description

Patients scheduled to have foot and ankle surgery will typically receive a single shot sciatic nerve block to serve as the primary anesthetic and as part of a multi-modal post-operative analgesic plan. Perineural dexamethasone has been investigated as an adjuvant for brachial plexus nerve blocks but its effect on sciatic nerve block outcomes has yet to be determined. More importantly, it is not known whether the beneficial effect of perineural dexamethasone on analgesia duration leads to a better quality of surgical recovery. We hypothesized that perineural dexamethasone leads to a better quality of postsurgical recovery than intravenous dexamethasone or saline control.

Interventions

DRUGDexamethasone

IV dexamethsone 8mg in 50mL (diluted in NS)

DRUGSaline

2mL

Sponsors

Northwestern University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* ASA 1-3 patients who are presenting for foot and ankle surgery and are candidates for a single injection sciatic nerve block to provide postoperative analgesia. * Surgery confined to the foot and ankle. * Patients aged 18-70 years.

Exclusion criteria

* ASA Classification of 4 or higher. * Pre-existing neuropathy * Coagulopathy * Infection at the site * Diabetes * Non-English speaking or reading patients * Systemic use of corticosteroids within 6 months of surgery * Chronic opioid use * Pregnancy * Large (\>3cm) skin incision around the medial aspect of the foot * Any other contra-indication to regional anesthesia

Design outcomes

Primary

MeasureTime frameDescription
Quality of Recovery2 weeksQoR-40 questionnaire instrument consists of 40 questions that examine 5 domains of patient recovery using a 5 point Likert scale: none of the time, some of the time, usually, most of the time and all of the time. The five domains include physical comfort, pain, physical independence, psychological support and emotional state. Global QoR-40 scores range from minimum of 40 to a maximum of 200. The scores are added together to compute a total score. A low score of 40 represents very poor quality of recovery while a high score, i.e. 200 represents outstanding quality of recovery.

Secondary

MeasureTime frameDescription
Opioid Consumption2 weeksPostoperative opioid consumption was converted to equivalent dose of oral morphine at two weeks following surgery.
Pain Scores2 weeksPatients were asked to rate their pain score during activity on a 11-point scale (0 = no pain to 10 = excruciating pain).

Countries

United States

Participant flow

Participants by arm

ArmCount
Perineural Dexamethasone
Ultrasound guided sciatic nerve block with bupivicaine 0.5% with 1:300,000 epinephrine and perineural dexamethasone 8mg/2mL ,and 50mL IV normal saline infusion
27
Intravenous Dexamethasone
Ultrasound guided sciatic nerve block with bupivicaine 0.5% with 1:300,000 epinephrine with saline/2mL and IV dexamethsone 8mg in 50mL infusion
26
No Perioperative Steroids
Ultrasound guided sciatic nerve block with bupivicaine 0.5% with 1:300,000 epinephrine with saline/2mL and 50mL saline infusion
27
Total80

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up020

Baseline characteristics

CharacteristicPerineural DexamethasoneIntravenous DexamethasoneNo Perioperative SteroidsTotal
Age, Continuous42 years47 years39 years43 years
Sex: Female, Male
Female
13 Participants13 Participants11 Participants37 Participants
Sex: Female, Male
Male
14 Participants13 Participants16 Participants43 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 270 / 240 / 27
serious
Total, serious adverse events
0 / 270 / 240 / 27

Outcome results

Primary

Quality of Recovery

QoR-40 questionnaire instrument consists of 40 questions that examine 5 domains of patient recovery using a 5 point Likert scale: none of the time, some of the time, usually, most of the time and all of the time. The five domains include physical comfort, pain, physical independence, psychological support and emotional state. Global QoR-40 scores range from minimum of 40 to a maximum of 200. The scores are added together to compute a total score. A low score of 40 represents very poor quality of recovery while a high score, i.e. 200 represents outstanding quality of recovery.

Time frame: 2 weeks

ArmMeasureValue (MEDIAN)
Perineural DexamethasoneQuality of Recovery181 units on a scale
Intravenous DexamethasoneQuality of Recovery184 units on a scale
No Perioperative SteroidsQuality of Recovery181 units on a scale
Secondary

Opioid Consumption

Postoperative opioid consumption was converted to equivalent dose of oral morphine at two weeks following surgery.

Time frame: 2 weeks

ArmMeasureValue (MEDIAN)
Perineural DexamethasoneOpioid Consumption0 mg/day
Intravenous DexamethasoneOpioid Consumption0 mg/day
No Perioperative SteroidsOpioid Consumption0 mg/day
Secondary

Pain Scores

Patients were asked to rate their pain score during activity on a 11-point scale (0 = no pain to 10 = excruciating pain).

Time frame: 2 weeks

ArmMeasureValue (MEDIAN)
Perineural DexamethasonePain Scores2 units on a scale
Intravenous DexamethasonePain Scores2.5 units on a scale
No Perioperative SteroidsPain Scores2 units on a scale

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