Preemptive Analgesic Effects of Popliteal Sciatic Nerve Block in Patients With Bilateral Hallux Valgus Surgery

Asan Medical Center

Status: Unknown

Conditions: Pain, Postoperative; Acute Pain; Preemptive Peripheral Nerve Block

Treatments: Drug: Ultrasound guided popliteal sciatic nerve block with 0.2% ropivcaine

Study type: Interventional

Funder types: Other

Identifiers

NCT03414593

2017-0856

Details and patient eligibility

About

The purpose of this study was to investigate the preemptive effect of ultrasound guided popliteal scistic nerve block on postoperative acute pain in patients with bilateral hallux valgus.

After induction of general anesthesia, the leg to be operated first is decided randomly. After the operation of one leg is completed, PSNB is performed on both legs with 0.2% Ropivacaine and surgery is started on the remaining legs.

When the surgery is over, check to see which foot pain begins first, how strong the pain is, and whether there are any side effects.

Enrollment: 20 estimated patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. adults between the ages of 20 and 80
2. bilateral hallux valgus surgery on the same day
3. ASA class 1 or 2
4. Patients who have voluntarily agreed in writing to participate in the trial

Exclusion criteria

1. Patient with side effects on local anesthetics or steroids
2. Patient who are taboo of peripheral nerve block such as blood clotting disorder, infection, etc.
3. Patients with uncontrolled medical or psychiatric problem
4. Patient does not agree to participate in the study
5. Patients who are pregnant or lactating

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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20 participants in 2 patient groups

preoperative blocked leg: group preB

Experimental group

Description:

ultrasound guided popliteal sciatic nerve block with 0.2% ropivacaine 20ml Before surgical incision

Treatment:

Drug: Ultrasound guided popliteal sciatic nerve block with 0.2% ropivcaine

postoperative blocked leg: group postB

Active Comparator group

Description:

ultrasound guided popliteal sciatic nerve block with 0.2% ropivacaine 20ml After surgical incision

Treatment:

Drug: Ultrasound guided popliteal sciatic nerve block with 0.2% ropivcaine