Femoral/Sciatic Block for Knee Surgery

University of Sao Paulo General Hospital

Status: Completed

Conditions: Knee Injuries

Treatments: Procedure: morphine; Procedure: femoral nerve blockade

Study type: Interventional

Funder types: Other

Identifiers

NCT02882152

0257/09

Details and patient eligibility

About

Knee arthroplasty has a high potential for postoperative pain. This study compares analgesia and postoperative bleeding from intrathecal morphine with the continuous femoral and a single-shot sciatic nerve blockades.

Full description

This study aims to compare intrathecal morphine as a technique for analgesia with the femoral nerve blockade associated with a single-shot sciatic nerve blockade. Analgesic efficacy, the incidence of adverse effects, and postoperative bleeding were evaluated

Enrollment: 40 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Patients aged over 18 years old, American Society of Anesthesiologists (ASA) physical status from I to III who underwent total knee arthroplasty

Exclusion criteria

• Patients aged below 18 years old, ASA IV or V physical status, infection near the puncture site, coagulation disorders, preexisting neurological disorders, allergy report to local anesthetics, pregnancy and lactation, contraindications to spinal block and refusal to sign an informed consent form

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

---

40 participants in 2 patient groups

femoral blockade

Experimental group

Description:

femoral nerve blockade followed by a catheter placement for continuous infusion and a "single shot" block of the sciatic nerve

Treatment:

Procedure: femoral nerve blockade

Morphine

Active Comparator group

Description:

intrathecal morphine

Treatment:

Procedure: morphine