Transmuscular Quadratus Lumborum Block Plus Pericapsular Injection vs Pericapsular Injection

  • End date
    Oct 1, 2022
  • participants needed
  • sponsor
    NYU Langone Health
Updated on 1 May 2021


The purpose of this research study is to compare two different treatment options on their effectiveness to reduce post-operative pain, narcotic (opioid pain medication) usage and recovery time in patients undergoing primary hip arthroscopy surgery.

The first treatment option is a Transmuscular Quadratus Lumborum (TQL) block plus hip incision site (Pericapsular) Injection. The TQL block is an ultrasound guided injection between the quadratus lumborum and the psoas muscles in the back. The anesthesiologist will perform the TQL block The second treatment option is only a hip incision site (Pericapsular) Injection. In this group, the surgeon will inject local anesthetic into the incision or hip portal sites to decrease sensation.


This is a phase IV, randomized, single-blind, single-center study comparing postoperative pain, opioid usage and Post-Anesthesia Care Unit (PACU) recovery time for patients who receive a Transmuscular Quadratus Lumborum block (TQLB) plus pericapsular injection versus pericapsular injection (PCI) undergoing primary hip arthroscopy.

Condition Hip Pain Chronic
Treatment Bupivacaine Hydrochloride, Pericapsular injection, transmuscular quadratus lumborum block
Clinical Study IdentifierNCT04353414
SponsorNYU Langone Health
Last Modified on1 May 2021


Yes No Not Sure

Inclusion Criteria

Patients between 18 and 65 years of age
Patients undergoing Primary Hip Arthroscopy
Patients diagnosed with femoroacetabular impingement (FAI)
Patients who consent to be randomized

Exclusion Criteria

Patients younger than 18 and older than 65
Patients with a history of chronic pain that have used opioids for pain management for 3 months or longer
Patients with diagnosed or self-reported cognitive dysfunction
Patients with a history of neurologic disorder that can interfere with pain sensation
Patients with a history of drug or recorded alcohol abuse
Patients who are unable to understand or follow instructions
Patients with severe liver disease, renal insufficiency, congestive heart failure, and/or significant heart disease
Patients with an allergy or contraindication to any of the medications used in the study, or patients with a contraindication to any study procedures
Patients with BMI over 40
Any patient that the investigators feel cannot comply with all study related procedures
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