Comparing pain relief methods after total knee replacement surgery

Comparison of the Analgesic Effect of Subsartorial Saphenous Block and Popliteal Sciatic vs Subsartorial Saphenous Block and IPACK in Total Knee Replacement Surgery. A Double Blind Randomized Clinical Trial.

Not applicable Interventional Germans Trias i Pujol Hospital · NCT06514365

This study is testing two different ways to block pain after knee replacement surgery to see which one helps patients feel better and recover faster.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment62 (estimated)
Ages18 Years and up
SexFemale
SponsorGermans Trias i Pujol Hospital Academic / other
Locations1 site (Badalona, Barcelona)
Trial IDNCT06514365 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of two different nerve block techniques for pain management in patients undergoing total knee replacement surgery. It compares the analgesic effects of a subsartorial saphenous block combined with either a popliteal sciatic block or an iPACK block. The goal is to determine which method provides better pain relief and motor function post-surgery. Participants will receive local anesthesia and will be monitored for pain levels and recovery outcomes.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with osteoarthritis scheduled for total primary knee arthroplasty.

Not a fit: Patients under 18, those requiring general anesthesia, or individuals with chronic pain management issues may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients undergoing total knee replacement, enhancing recovery and rehabilitation.

How similar studies have performed: While there are few studies on the iPACK block, this specific comparison of techniques has not been extensively tested, making it a novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with osteoarthritis scheduled for total primary knee arthroplasty with same surgeons
* Locoregional anesthesia
* Age equal to or greater than 18 years
* Consent to participate in the study

Exclusion Criteria:

* Age under 18 years old
* General anesthesia
* Allergy to local anesthetics
* Severe kidney failure (Cr ≥ 2mg / dL)
* Chronic opioid use (over 3 months)
* Chronic pregabalin / gabapentin use (more than 3 months)
* Psychiatric illness that may interfere with the evaluation or follow-up

Where this trial is running

Badalona, Barcelona

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.
Conditions Pain, AcuteKnee OsteoarthritisAnesthesiaIpackBlockTotal knee replacement
Last reviewed 2026-06-15 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.