Recruiting

Obturator Nerve Block

Sponsor:

Benaroya Research Institute

Code:

NCT02346357

Conditions

Pain

Eligibility Criteria

Sex: All

Age: 18 - 65

Healthy Volunteers: Not accepted

Interventions

Obturator Nerve Block

Ropivacaine

Placebo Saline

Study Details

Brief summary:

Hip arthroscopy is commonly associated with moderate-to-severe postoperative pain. The purpose of this study is to investigate the analgesic efficacy of preoperative obturator nerve block as measured by postoperative pain scores and postoperative analgesic requirements. The primary outcome will be the patient's first reported pain scores in the post anesthesia care unit (PACU).

Conditions

Pain

Study ID

NCT02346357

Start date

May, 2014

Status verified date

Jan, 2015

Completion date

Sep, 2015

Anticipated

Primary completion date

Sep, 2015

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 65

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Primary unilateral ambulatory hip arthroscopy
  • Age 18 to 65 years
  • ASA physical status I to III
  • Ability to follow the protocol.

Exclusion Criteria:

  • Age <18 or >65 years of age
  • Contraindications to peripheral nerve blockade
  • Allergy to opioids or local anesthetics
  • Allergy to sulfa medications or nonsteroidal anti-inflammatory medications
  • Chronic opioid
  • Patient refusal

Study Design

Enrollment

70 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

active comparator: Obturator nerve block

Ultrasound-guided single-injection obturator nerve block with 20 mL ropivacaine 0.5%

placebo comparator: Sham block

Placebo arm. Ultrasound-guided injection of 3-5 mL normal saline in the subcutaneous tissue in the same location as would for an obturator nerve block.

Interventions

Obturator Nerve Block

Ultrasound-guided obturator nerve block with 20 mL of treatment drug (Ropivacaine 0.5% \[local anesthetic\]) 30 minutes prior to induction of anesthesia.

Ropivacaine

Placebo Saline

Primary outcome measure

  • Immediate pain score upon arrival to phase 1 PACU (NRS pain score) [ Time Frame: Within 5-30 minutes upon leaving operating room and arrival to Phase I recovery ]

Central Contacts and Locations

Central contacts

Francis Salinas, MD

206-223-6980Francis.Salinas@virginiamason.org

Stan Yuan, MD

206-223-6980stanley.yuan@virginiamason.org

Locations

Virginia Mason Medical Center

Recruiting

Seattle, Washington, United States, 98104

Contacts

Francis Salinas, MD

206-223-6980Francis.Salinas@virginiamason.org

More Information

Sponsor

Benaroya Research Institute

Last update posted

Jan 27, 2015

Last verified

Jan, 2015

Keywords

  • hip arthroscopy
  • analgesia

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Benaroya Research Institute on 2015-01-27.