Minimum Anaesthesia Concentration of Lidocaine Required for Sciatic Popliteal Block

• Status: Unknown status
• Trial end date: 2019-03-31
• Target enrollment: 0
• Participant gender: All

Summary

using a biased-coin design up-down sequential method, different concentration of lidocaine will be used for popliteal block After 45 successful block (positive response), the data will be used to calculate the minimum lidocaine concentration that can result in successful popliteal block in 90% of patients

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Healthpoint Hospital
• Treatments: Lidocaine

Criteria

Inclusion Criteria:

• orthopedic foot or ankle surgery

• day case surgery

Exclusion Criteria: patients

• <18y,

• ASA class greater >III,

• obese (BMI >30),

• patients with low body weight, who required lidocaine dose is of more than 4.5mg.kg-1

• peripheral neuropathy,

• motor weakness,

• infection at the injection site

• any contraindications for medications in the study.