Which nerve block offers better pain relief after ACL surgery?

NCT ID NCT03033589

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This trial compares two types of nerve blocks—femoral nerve block and adductor canal block—for controlling pain after anterior cruciate ligament (ACL) reconstruction. Participants receive one of the two blocks before surgery, and researchers track their pain levels and painkiller use for three days after the operation. The goal is to find which block provides better pain relief while preserving muscle strength.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
bupivacaine (Marcaine)
What this could lead to
If one block works better, it could improve pain control and reduce opioid use after ACL surgery.
What could go wrong
This is a small, single-center study. Results may not apply to all patients or other types of surgery.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Henry Ford Health System - CFP 642

    Detroit, Michigan, 48202, United States

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