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

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

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...)