The Comparison of Analgesia Methods Used for Spinal Surgery

Istanbul University

Status: Unknown

Conditions: Postoperative Pain; Analgesia

Treatments: Drug: Isotonic; Drug: Magnesium

Study type: Interventional

Funder types: Other

Identifiers

NCT04603638

2019/1458

Details and patient eligibility

About

In this study ; Two randomized groups will be created. Iv magnesium will be given to one of the blindly designated groups. The other group will be given only isotonic. All patients will be awakened after the analgesic agents (0,1mg / kg morphine, 15mg / kg paracetamol, nsaid) are used in routine practice and will be followed up for intensive care.

The use of PCA (patient controlled analgesia) device is available in both groups.In post-operative period, magnesium infusion will be continued for 12 h. Only 100cc isotonic will be given without using magnesium to the other group. VAS (visual analog scale) score will be recorded at postoperative 30. minutes and 2,6,12,18,24 hours. In routine administration, the patient should be given 2 mg of morphine if vas>4 and the maximum dose will be increased to 10 mg.

Full description

After the approval of the ethics committee for the study, in the Istanbul University Faculty of Medicine Orthopedics and Traumatology Department; There will be 3 or more posterior instrumentation operations, cobb angle of 40 degrees and above, 18-75 years old, ASA (American Society of Anesthesiologists) score 1-3, no chronic neuropathic pain and no psychiatric illness, no chronic narcotic analgesics and / or substance abuse a creatine value below 1.3 will be included.

Standard anesthesia monitoring will be performed for patients taken to the operation room. Routine anesthesia induction will be performed. In the prone position, anesthesia maintenance will be provided using the infusion of propofol and remifentanil.

Our clinic; PCA (patient-controlled analgesia) device with intravenous morphine is used routinely for postoperative analgesia.In this study ;two randomized groups will be created. It will give iv magnesium(in the intraoperative period at a dose of 40mg / kg, within 30 minutes after induction) to a blindly designated group. The other group will be given only isotonic. After in post-operative period, magnesium infusion will be continued for 12 hours (40mg / kg). Magnesium sulfate will be given in 100 cc isotonic. In the other group, only 100cc isotonic will be given without using magnesium. All patients will be awakened after the analgesic agents (0,1mg / kg morphine, 15mg / kg paracetamol, nsaid) are used in routine practice and will be followed up for intensive care.

The use of PCA device is available in both groups. vas score will be recorded postoperative 30. minutes and 2,6,12,18,24 hours. In routine administration, the patient should be given 2 mg of morphine if vas>4 and the maximum dose will be increased to 10 mg.

Enrollment: 82 estimated patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 18 -75 years old
• Patients with posterior instrumentation surgery of 3 or more levels under general anesthesia with a cobb angle of 40 degrees and above
• Patients who will be awakened after the surgery is completed and intensive care follow-up
• Patients with ASA classification 1-3
• Patients with creatine value <1.3 g / dl

Exclusion criteria

• Having a history of chronic neuropathic pain
• Having a psychiatric illness
• Patients who should not be awakened after surgery but should be followed up intubated and sedated
• Patients who cannot provide adequate cooperation for scoring
• Patients with chronic opioid use and / or substance use
• Patients with ASA classification> 3
• Patients with a creatinine value of 1.3 g / dl and higher

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Triple Blind

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82 participants in 2 patient groups, including a placebo group

magnesium

Active Comparator group

Description:

participations will be given intravenous magnesium.

Treatment:

Drug: Magnesium

control

Placebo Comparator group

Description:

participations will be given intravenous isotonic.

Treatment:

Drug: Isotonic