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Magnesium Sulfate in Addition to Bupivacaine in Ultrasound-guided Transmuscular Quadratus Lumborum Block for Post-Operative Analgesia After Total Hip Arthroplasty

Efficacy of Adding Magnesium Sulfate to Bupivacaine in Ultrasound-guided Transmuscular Quadratus Lumborum Block for Postoperative Analgesia in Patients Underdoing Hip Arthroplasty

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06956950
Acronym
Mgso4
Enrollment
70
Registered
2025-05-04
Start date
2025-05-31
Completion date
2025-11-30
Last updated
2025-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain Score Reduction

Brief summary

The aim of this clinical trial is to evaluate the efficacy of adding magnesium sulfate to bupivacaine in ultrasound-guided transmuscular quadratus lumborum block for postoperative analgesia in adult patients underdoing hip arthroplasty. The main questions it aims to answer are: * Does Magnesium sulphate lower Pain score (VAS) postoperatively. * Does Magnesium sulphate lowerTotal opioid consumption postoperatively. and What side effects do participants have when taking Magnesium sulphate? Researchers will compare Magnesium sulphate to a placebo (a look-alike substance that contains no drug) to see if Magnesium sulphate works to lower pain score. Participants will: * Take with have ultrasound-guided transmuscular quadratus lumborum block after surgery using bupivacaine with Magnesium sulphate or with placebo * Followed up 48 hours postoperatively to monitor pain score or any reported side effect.

Detailed description

The quadratus lumborum block (QLB) is an abdominal wall fascial block plane block described for providing perioperative analgesia for abdominal, hip and lower limb surgeries . Opioid-sparing analgesic treatments for hip arthroplasty such as lumbar plexus and femoral nerve blocks, are effective but they carry a high risk of undesirable lower limb motor or muscle weakness. Fascia iliaca block, on the other hand, does not consistently provide adequate pain relief. Quadratus lumborum (QL) block is a relatively new truncal regional block technique that provides effective pain control after upper and lower abdominal surgeries. ersalis fascia laterally. The anterior QL block was also classified as transmuscular approach (in between QL and PM muscles) in earlier studies . Local anesthetic injected between the QL muscle and anterior layer of the thoracolumbar fascia can potentially spread to the thoracic paravertebral (PVB) space. Magnesium plays an important role in the physiological function of the human body. A large number of studies have reported the safetyand effectiveness of adding magnesium sulfate in various regional anesthesia techniques . Therefore, this prospective randomized controlled study to compare the analgesic efficacy of combining magnesium sulfate with bupivacaine in QLB.

Interventions

ultrasound-guided transmuscular quadratus lumborum block using 25 ml of 0.25% bupivacaine + 5 ml 10% magnesium sulfate

ultrasound-guided transmuscular quadratus lumborum block using 25 ml of 0.25% bupivacaine + 5 ml normal saline

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Intervention model description

ultrasound-guided transmuscular quadratus lumborum block using 25 ml of 0.25% bupivacaine + 5 ml 10% magnesium sulfate

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years. * American Society of Anesthesiology (ASA) class I-III * Undergoing hip arthroplasty .

Exclusion criteria

* Patient refusal. * Body mass index (BMI) \> 40 Kg/m2. * Allergy to local anesthetics or magnesium sulphate. * coexisting coagulopathy. * Local infection at puncture site. * Severe renal impairment ( eGFR \< 30 ml/min)

Design outcomes

Primary

MeasureTime frameDescription
postopeative pain Score48 hours postoperativelyThe degree of pain will be assessed after surgery by Visual Analogue Score (score for the severity of pain in the range 0-10, where 0 = no pain and 10 = severe pain) at 6 , 12 , 24 , 48 hours postoperatively.

Secondary

MeasureTime frameDescription
Total opioid consumption48 hours postoperativelytotal morphine consumption after surgery
Time to first rescue analgsic request48 hours postoperatively

Countries

Egypt

Contacts

Primary ContactMostafa Mohammad Abdelsattar Elbagoury, MD
mostafa.elbagoury@med.tanta.edu.eg+201116297741
Backup ContactDina Abdalla Elesawy Amer, MD
denaa_abdallah@yahoo.com+201066376552

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026