Popliteal Block for Postoperative Pain in Knee-ankle Soft Tissue Surgery in Cerebral Palsy

Diskapi Teaching and Research Hospital

Status: Completed

Conditions: Postoperative Pain; Cerebral Palsy

Treatments: Other: Laryngeal mask airway; Device: Ultrasound; Drug: bupivacaine; Drug: Sevoflurane; Other: Plaster cover; Procedure: Popliteal block

Study type: Interventional

Funder types: Other

Identifiers

NCT02507700

DiskapiTRH 2015

Details and patient eligibility

About

Popliteal block is a technique for providing postoperative pain management in children. In this randomized double-blinded study, the investigators evaluated the effects of preoperative popliteal nerve block on postoperative pain and analgesic requirement in children with cerebral palsy (CP) undergoing knee-anckle soft tissue surgery. The Wong Baker faces scale and skin conductance fluctuations will be assessed.

Full description

Sevoflurane will be used for anesthesia induction and maintance. Laryngeal mask airway will be placed without neuromuscular blocking agent. In group P (popliteal block), a single dose of 0.3ml.kg(-1) of 0.25% bupivacaine will be performed for popiteal nerve block (with ultrasound guidence). In group C ( control), only plaster cover will be applied without nerve block for sham procedure to provide double-blinded study. Intraoperative heart rate, mean arterial pressure, BIS (bispectral index) values, sevoflurane consumption will be recorded ten minutes interval. Wong Baker faces scale and skin conductance fluctuations will be recorded at postoperative 0, 10th min, 20th min , 1st h, 4th h, 12th h qnd 24th h. Total analgesic consumption (paracetamol orally ) will be recorded.

Enrollment: 60 patients

Sex: All

Ages: 3 to 15 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Children with cerebral palsy
• Scheduled for knee and ankle surgery

Exclusion criteria

• Autonomic neuropathy
• Medication with anticholinergic drugs
• Continuous infusion of vasoactive drugs

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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60 participants in 2 patient groups

popliteal block

Active Comparator group

Description:

Popliteal block will be performed with a single dose of 0.3 ml·kg(-1) of 0.25% bupivacaine.

Treatment:

Device: Ultrasound

Other: Laryngeal mask airway

Procedure: Popliteal block

Drug: bupivacaine

Drug: Sevoflurane

Plaster cover

Sham Comparator group

Description:

Only plaster cover will be applied without nerve block for sham procedure.

Treatment:

Other: Laryngeal mask airway

Other: Plaster cover

Drug: Sevoflurane