Ultrasound Guided Single Shot Block of Posterior Tibial Nerve for Postoperative Pain Relief After Hallux Valgus Surgery

• Status: Unknown status
• Trial end date: 2017-03-01
• Target enrollment: 0
• Participant gender: All

Summary

Hallux surgery is known to be extremely painful. Standard pain therapy is treatment with NSAID and opioid painkillers. Patients are frequently not-satisfied with this. Some institutions use a nerve block (single shot or catheter technic) of the ischiadic nerve. But this procedure is invasive, has a potential risk of nerve lesion, and is not accepted by all surgeons. A single shot nerve block of the posterior tibial nerve is less invasive and could be superior compared to standard pain treatment. A great variability of nerve supply of the foot is well described. There are some hints that the posterior tibial nerve supplies the first metatarsal bone and the first metatarsal joint. A nerve block could reduce postoperative pain in hallux surgery. To assess the effectiveness of this investigated measure, the requested morphine dose of a PCA pump will be used to verify the effectiveness of the tibial nerve block.

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

Details

• Lead Sponsor: Dr.med. Sabine Schoenfeld
• Treatments: Droperidol; Morphine; Ropivacaine

Criteria

Inclusion Criteria:

• Age over 18 years

• Elective Hallux valgus surgery ("Magerl" operation technique)

Exclusion Criteria:

• Patient refusal, pregnancy

• Regular medication with opioids

• Drug abuse

• Contraindication for regional anesthesia

• Known allergy against one of the study drugs

• Polyneuropathia, or any other neurodegenerative disorders