Displacement of Popliteal Sciatic Nerve Catheters After Major Foot and Ankle Surgery

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02200016

Enrollment

Registered

2014-07-25

Start date

2014-11-30

Completion date

2015-05-31

Last updated

2015-06-11

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

Conditions

Postoperative Pain, Regional Anesthesia

Keywords

Postoperative pain, Regional anesteshia, Nerve catheters, Sciatic nerve catheters

Brief summary

Displacement of popliteal sciatic nerve catheters after major foot and ankle surgery. A randomized controlled double blinded MRI study comparing long versus short axis catheter placement. Which procedure for insertion of nerve catheters for postoperative pain after major foot and ankle surgery is the best

Interventions

PROCEDUREUltrasound guided short axis (SAX) placement of sciatic nerve catheters

Sonosite EDGE ultrasound scanner guided insertion of a B Braun Contiplex S catheter along the short axis of the sciatic nerve behind the knee.

PROCEDUREUltrasound guided long axis (LAX) placement of sciatic nerve catheters

Sonosite EDGE ultrasound scanner guided insertion of a B Braun Contiplex S catheter along the long axis of the sciatic nerve behind the knee.

DEVICEB Braun Contiplex S catheter

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

DIAGNOSTIC

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Age ≥ 18 y. * Major foot and ankle surgery postoperativ pain treatment with sciatic nerve catheter r * Written and informed concent

Exclusion criteria

* Patient uanble to cooperate * Patients not speaking and understanding Danish or English * Patiens in immunosuppresive treatment * Patienter with neuropathys in lower extremities * Allergies to the in the protocole listes medicines * A daily opoid intake * Pregnant women * Patients not meeting MR-criterias (metal, claustofobia...)

Design outcomes

Primary

Measure	Time frame
Frequency of nerve catheter displacement	48 hours after catheter placement

Secondary

Measure	Time frame
Opioid comsumption	Within first 48 hours postoperatively
Number of rescue blocks	Within 48 hours postoperatively
Postoperativ pain after local anesthetic injection via sciatic nerve catheter	Within 48 hours postoperatively
MR evaluated distribution of local anesthetic after injection MR-contrast	48 hours after catheter placement

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026