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Clinical Trial Summary

Patients undergoing ACL repair with hamstring autograft frequently develop significant post operative pain at the hamstring grafting site. This pain is within the distribution of a commonly used regional nerve block, the Interspace between the popliteal artery and capsule of the knee (iPACK). The investigators plan to randomize consenting patients to either receiving a SHAM injection of normal saline or to an interventional group of long acting local anesthetic (Ropivacaine) injected in the popliteal fossa between the popliteal artery and capsule of the knee (iPACK). Both groups of patients will receive standard of care with respect to perioperative pain management, which includes a preoperative adductor canal nerve block and preoperative acetaminophen administration. Dual primary endpoints of postoperative pain scores and mean postoperative opioid use will be retrieved and compared between groups. Additional secondary endpoints will be PACU length of stay, PACU opioid use, POD1 opioids use, and POD1 pain scores (best, worst, average).


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05080348
Study type Interventional
Source University of California, San Diego
Contact Brenton Alexander, MD
Phone (858) 657-7000
Email bsalexander@health.ucsd.edu
Status Not yet recruiting
Phase N/A
Start date December 2021
Completion date May 2022

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