Lumbar Plexus Block For Postoperative Pain Control After Hip Arthroscopy. A Randomized Controlled Trial

IRB Number: 10038

inactive

April 27, 2010

Institutional Review Board, Hospital for Special Surgery

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Principal Investigator

Jacques T. YaDeau, MD, PhD

Co-Investigators

Summary

This study will examine the addition of a lumbar plexus block to the postoperative analgesic regimen for ambulatory hip arthroscopy as a new way to attack the problem of postoperative pain and the burdensome side effects of systemic narcotics to treat the pain after this procedure. This will be a 2-center study, in collaboration with investigators at Weill Cornell Medical College. We are looking to enroll up to 90 patients over the course of the next 12 months. The follow-up consists of five visits in the Post-Anesthesia Care Unit, one call on the first day following surgery, and one call six months following your surgery.

Inclusion/Exclusion Criteria

Inclusion Criteria:

 American Society of Anesthesiologists (ASA) Class 1-3
 Patients aged 18 to 65 years
 Patients scheduled for primary, unilateral arthroscopic hip surgery by Dr. Kelly, Dr. Coleman, or Dr. Anil Ranawat
 Planned use of neuraxial anesthesia
 Body Mass Index less than 35
 Ability to follow study protocol

Exclusion Criteria:

 Chronic opioid use (defined as daily or almost daily use of opioids for >3 months)
 Contraindication to combined spinal-epidural anesthesia including but not limited to bleeding disorder, use of clinically relevant anticoagulant or antiplatelet medications, and anatomic abnormalities.
 Contraindication to lumbar plexus block including but not limited to bleeding disorder, use of clinically relevant anticoagulant or antiplatelet medications, and anatomic abnormalities.
 Infection at the injection site(s)
 Allergy to any of the study medications
 Contraindication to a short course of NSAIDs (renal failure, intolerance)
 ASA Class 4-5
 Patient refusal
 Patients younger than 18 years old and older than 65
 BMI greater than or equal to 35
 Patients with any known indwelling hardware of the lumbar spine.
 Patients with a peripheral neuropathy of the surgical extremity
 Non-English speaking patients

Contact Information

Dr. Jacques T. YaDeau, MD, PhD
Yadeauj@hss.edu
212.606.1036