Spinal Mepivicaine With Fentanyl for Outpatient Knee Arthroscopy

This study has been completed.
Information provided by:
University Health Network, Toronto
ClinicalTrials.gov Identifier:
First received: December 4, 2008
Last updated: January 22, 2010
Last verified: January 2010

The purpose of this study is to determine if the addition of intrathecal fentanyl to low dose mepivacaine spinal anesthesia provides adequate surgical anesthesia with shorter duration of motor blockade.

It is hypothesized that lower doses of spinal mepivacaine when combined with fentanyl will result in adequate surgical block for knee arthroscopy surgery with faster recovery and discharge compared to mepivacaine alone.

Condition Intervention
Knee Arthroscopy
Drug: Mepivacaine without fentanyl
Drug: Mepivacaine with Fentanyl

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Spinal Mepivicaine With Fentanyl for Outpatient Knee Arthroscopy Surgery

Resource links provided by NLM:

Further study details as provided by University Health Network, Toronto:

Primary Outcome Measures:
  • Time to complete motor block regression (0) as measured by modified Bromage scale. [ Time Frame: Every 2 minutes from administration of the spinal until complete onset. ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Block success, peak, and duration; time to ambulation, urination, discharge; incidence of adverse events. [ Time Frame: Up to 72 hours after surgery. ] [ Designated as safety issue: No ]

Estimated Enrollment: 34
Study Start Date: August 2008
Study Completion Date: May 2009
Primary Completion Date: May 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
Mepivicaine for spinal anesthesia
Drug: Mepivacaine without fentanyl
45 mg 1.5% mepivacaine injection for spinal anesthesia
Experimental: 2
Mepivacaine with Fentanyl for spinal anesthesia
Drug: Mepivacaine with Fentanyl
10 micrograms fentanyl with 30 mg 1.5% mepivacaine injection for spinal anesthesia


Ages Eligible for Study:   18 Years to 80 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Patients having unilateral arthroscopic surgery of the knee;
  2. ASA I-III status;
  3. Age 18-80 years;
  4. BMI< 35.

Exclusion Criteria:

  1. Patients who have previous history of hypersensitivity to local anesthetics or contraindications for spinal anesthesia (i.e. bleeding diathesis, coagulopathy);
  2. Patients with radiating low back pain and neurological deficits in lower extremities;
  3. Patients who are incapable of giving an informed consent.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00803725

Canada, Ontario
Toronto Western Hospital
Toronto, Ontario, Canada, M5T 2S8
Sponsors and Collaborators
University Health Network, Toronto
  More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Dr. Richard Brull, University Health Network
ClinicalTrials.gov Identifier: NCT00803725     History of Changes
Other Study ID Numbers: 07-0683-A 
Study First Received: December 4, 2008
Last Updated: January 22, 2010
Health Authority: Canada: Ethics Review Committee

Keywords provided by University Health Network, Toronto:
spinal anesthesia
duration of anesthesia
knee arthroscopy
regional anesthesia
Spinal anesthesia for knee arthroscopy

Additional relevant MeSH terms:
Adjuvants, Anesthesia
Analgesics, Opioid
Anesthetics, General
Anesthetics, Intravenous
Anesthetics, Local
Central Nervous System Agents
Central Nervous System Depressants
Peripheral Nervous System Agents
Pharmacologic Actions
Physiological Effects of Drugs
Sensory System Agents
Therapeutic Uses

ClinicalTrials.gov processed this record on April 27, 2016