Continuous Popliteal Nerve Blocks: Effect of Perineural Catheter Tip Location Relative to the Sciatic Nerve Bifurcation on Postoperative Analgesia
Trial Snapshot
- Phase
- Phase 4
- Status
- Completed
- Enrollment
- 150
- Locations
- 1
- Primary Endpoint
- Average Pain
Study Overview
Brief Summary
Research study to determine the relationship between perineural catheter tip location relative to the sciatic nerve bifurcation and postoperative analgesia for continuous popliteal nerve blocks.
Detailed Description
Hypothesis
During a continuous popliteal nerve block, postoperative analgesia will be improved with the perineural catheter tip at the level of the sciatic nerve bifurcation compared to when the catheter tip is 5 cm cephalad/proximal to the bifurcation.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Single (Participant)
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •undergoing surgery with a popliteal perineural catheter for postoperative analgesia
- •age 18 years or older
Exclusion Criteria
- •pregnancy
- •inability to communicate with the investigators and hospital staff
- •incarceration
- •clinical neuropathy in the surgical extremity
- •chronic high-dose opioid use
- •a history of opioid abuse
- •surgery outside of ipsilateral sciatic and saphenous nerve distributions
Arms & Interventions
At Bifurcation
Patients randomized to this group will receive a sciatic nerve block placed at the bifurcaton of the sciatic nerve and outcome measures will be tested.
Intervention: Catheter Placed At Bifurcation (Procedure)
5cm Above Bifurcation
Patients randomized to this group will receive a sciatic nerve block placed 5cm above the bifurcaton of the sciatic nerve and outcome measures will be tested.
Intervention: Catheter Placed 5cm Above Bifurcation (Procedure)
Outcomes
Primary Outcomes
Average Pain
Time Frame: 1 Day following surgery
The average pain in the three hours previous to a phone call the day following surgery as measured on a numeric rating scale (0-10, 0=no pain, 10=worst imaginable pain).
Secondary Outcomes
- Satisfaction of pain control(1 day following surgery)
- Infusion Side Effects(1 day following surgery)
- Sleep Disturbances(1 day following surgery)
- Analgesic Use(1 day following surgery)
Investigators
Brian M. Ilfeld, MD, MS
Associate Professor, In Residence
University of California, San Diego