Ultrasound-Guided Continuous Sciatic Nerve Blocks: Popliteal Versus Subgluteal Catheters

University of California, San Diego2 sites in 1 country2 target enrollmentMarch 2011

ConditionsFoot Surgery

Overview

Phase: Phase 4
Intervention: Not specified
Conditions: Foot Surgery
Sponsor: University of California, San Diego
Enrollment: 2
Locations: 2
Primary Endpoint: Muscle Strength (MVIC) of the hamstring muscles
Status: Terminated
Last Updated: 13 years ago

Overview Investigators Eligibility Criteria Outcomes Sites Similar Trials

Overview

Brief Summary

To determine the relationship between perineural catheter location along the sciatic nerve (popliteal versus subgluteal placement) and infusion effects for ultrasound-guided continuous sciatic nerve blocks.

Registry

clinicaltrials.gov

Start Date

March 2011

End Date

March 2013

Last Updated

13 years ago

Study Type

Interventional

Study Design

Parallel

Sex

All

Investigators

Sponsor

University of California, San Diego

Responsible Party

Principal Investigator

Brian M. Ilfeld, MD, MS

Associate Professor, In Residence

University of California, San Diego

Eligibility Criteria

Inclusion Criteria

•undergoing foot surgery with a sciatic perineural catheter for postoperative analgesia
•spending the first postoperative night hospitalized
•age 18 years or older

Exclusion Criteria

•pregnancy
•inability to communicate with the investigators and hospital staff
•incarceration
•clinical neuropathy in the surgical extremity

Outcomes

Primary Outcomes

Muscle Strength (MVIC) of the hamstring muscles

Time Frame: 08:00-09:00 morning after surgery as a percentage of baseline

We will evaluate hamstring strength which is innervated by the sciatic nerve with an isometric force electromechanical dynamometer to measure the force produced during a maximum voluntary isometric contraction (MVIC) in a seated position with the knees flexed at 90º

Secondary Outcomes

Sensory Effect(08:00-09:00 morning after surgery)
Pain Scores(from leaving the PACU until 08:00 the morning after surgery)
Sleep Disturbances(recorded at 08:00-09:00 the morning after surgery for the previous night)
Total Infusion(recorded at 08:00-09:00 the morning following Surgery)
Anesthetic Leakage(recorded at 08:00-09:00 the morning following Surgery)
analgesic consumption(end of PACU stay until 08:00-09:00 the morning following surgery)