Comparing two types of nerve blocks for pain relief after knee surgery

Analgesic Efficacy of Blocking Nerve to Vastus Lateralis Muscle Versus Lateral Femoral Cutaneous Nerve After Knee Surgeries: A Randomized Trial

NA · Kafrelsheikh University · NCT06809842

This study is testing which of two types of nerve blocks helps adults feel less pain and recover better after knee surgery.

Quick facts

PhaseNA
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorKafrelsheikh University (other)
Locations1 site (Kafr ash Shaykh, Kafrelsheikh)
Trial IDNCT06809842 on ClinicalTrials.gov

What this trial studies

This study compares the effectiveness of two different nerve blocks, the vastus lateralis nerve block and the lateral femoral cutaneous nerve block, in providing pain relief after knee surgeries. By utilizing ultrasound-guided techniques, the study aims to determine which nerve block offers better analgesic efficacy and functional outcomes for patients recovering from knee surgery. Participants will be adults aged 18 and older who have undergone knee surgery under spinal anesthesia, and the study will assess their postoperative pain management and recovery progress.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older who have undergone knee surgeries and are in good health according to ASA physical status I to III.

Not a fit: Patients who are pregnant, have coagulopathy, neuromuscular disorders, or a BMI greater than 40 may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients recovering from knee surgeries.

How similar studies have performed: Other studies have shown promising results with similar nerve block techniques, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years.
* Both sexes.
* American Society of Anesthesiologists (ASA) physical status from I to III.
* Underwent knee surgeries under spinal anesthesia.

Exclusion Criteria:

* Pregnancy.
* Coagulopathy.
* Neuromuscular disorders.
* Hematological disorders.
* Mental disorders.
* History of multiple traumas or anesthesia drug allergies.
* Local skin infection at the block site.
* Body mass index (BMI) greater than 40.
* Opioid analgesics or abusing opioids.

Where this trial is running

Kafr ash Shaykh, Kafrelsheikh

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Analgesia, Vastus Lateralis Nerve Block, Lateral Femoral Cutaneous Nerve Block, Knee Surgeries

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.