Clinical Effectiveness of Obturator Externus Muscle Injection in Chronic Pelvic Pain Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01802528
Recruitment Status : Completed
First Posted : March 1, 2013
Last Update Posted : March 1, 2013
Information provided by (Responsible Party):
Yonsei University

Brief Summary:
Obturator externus (OE) muscle has the possibility as a pain generator, considering its anatomical and functional aspects, but this muscle as a possible target for therapeutic intervention is currently understudied in pain practice.

Condition or disease
Chronic Pelvic Pain

Study Type : Observational
Actual Enrollment : 23 participants
Observational Model: Cohort
Time Perspective: Retrospective
Study Start Date : March 2012
Primary Completion Date : December 2012
Study Completion Date : December 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Pelvic Pain
U.S. FDA Resources

Obturator externus muscle injection
patients were treated with obturator externus injection

Primary Outcome Measures :
  1. Post-injection pain score [ Time Frame: at 2 weeks after injection ]
    Before and after the OE muscle injection, patients were asked to rate their pain score using a 10-point numeric rating scale (NRS; 0=no pain, 10=worst possible pain). We also assessed the degree of patient satisfaction as excellent, good, fair, and bad during 2 weeks after injection. In this period, any analgesic medications did not change in all patients. Complications associated with OE muscle injection were investigated.

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Ages Eligible for Study:   20 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
The study population was defined as chronic pelvic pain patients with a localized tenderness on inferolateral side of the pubic tubercle corresponding to obturator foramen who received OE muscle injection with local anesthetic for their pain treatment.

Inclusion Criteria:

  • 1. 20-75 adults/ 2. Chronic pelvic pain patients who required the interventional procedures/ 3. patients with a localized tenderness on inferolateral side of the pubic tubercle

Exclusion Criteria:

  • 1. Severe cardiovascular disease /2. Coagulation abnormality /3. Patient denial

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01802528

Korea, Republic of
Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute,
Seoul, Korea, Republic of, 120-752
Sponsors and Collaborators
Yonsei University

Responsible Party: Yonsei University Identifier: NCT01802528     History of Changes
Other Study ID Numbers: 4-2012-0924
First Posted: March 1, 2013    Key Record Dates
Last Update Posted: March 1, 2013
Last Verified: February 2013

Keywords provided by Yonsei University:
obturator externus

Additional relevant MeSH terms:
Pelvic Pain
Neurologic Manifestations
Signs and Symptoms