Foot and ankle surgery is associated with postoperative pain. Although single shot sciatic nerve blockade at the popliteal fossa (SSPFB) minimizes the administration of opioids, the duration of analgesia is still limited. This double-blinded, placebo controlled study addressed the question whether or not adding dexamethasone (4mg) or clonidine (100mcg) may prolong the analgesia of a SSPFB with ropivacaine during hallux valgus surgery in comparison to a control group with plain ropivacaine. Med
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Inclusion criteria are: * physical status ASA I-II (Table 1), age 16-70 years * patient scheduled for elective fore foot surgery (hallux valgus) * scheduled surgery time between 20 and 90 min Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 100 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: Exclusion criteria are: • ASA III-IV-V • Chronic renal insufficiency (serum creatinine > 0.45 mg/dl); • Surgery duration of less than 20 minutes and longer than 90 minutes ; • Known coagulation disorders; • Known allergy to local anethetics; • Preoperative use of analgetics/opioids; • (Chronic) pain syndromes; • Psychiatric patients; • Peripheral neuropathy; • Diabetes Mellitus; • Gastric or duodenal ulcers; • Contraindications to loco-regional anesthesia (local or systemic sepsis, operator inexperience and patient or parent refusal) • Plasma haemoglobin concentration below 8 g/dl
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: The primary outcome was time to first pain sensation and achieve a better postoperative pain management. ;Secondary Objective: Secondary endpoints are onset time and total block recovery time.;Primary end point(s): The primary outcome is time to first pain sensation. ;Timepoint(s) of evaluation of this end point: time to block duration | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): Secondary endpoints is onset time and total block recovery time.;Timepoint(s) of evaluation of this end point: time to first and complete block regression | — |
Countries
Belgium
Contacts
zna middelheim