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The Frequency of Superior Cluneal Nerve Entrapment Diagnosed With Ultrasound Guided Nerve Block

NCT05303597 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 200

Last updated 2024-04-02

No results posted yet for this study

Summary

Cluneal nerves are a group of pure sensory nerves that provide direct cutaneous innervation to the buttocks. Superior cluneal nerve(SCN) originates from the T11-L5 nerve roots and has at least 3 branches from medial to lateral; these are the medial, intermediate, and lateral branches. Anatomy studies have shown that the medial branch passes 6-7 cm lateral to the midline on the posterior iliac crest. Nerve branches pass through the osteofibrous tunnel formed by the thoracolumbar fascia and the superior edge of the iliac crest, where they can be trapped. Controversial data exist regarding the osteofibrous tunnel. It may not be present in all cases, and in some cases more than one nerve has been shown to pass through the osteofibrous tunnel. As a result, there are discussions about superior cluneal nerve anatomy and there is not enough information.

In patients with superior cluneal nerve entrapment syndrome, low back pain radiates to the upper part of the hip and may cause leg pain that mimics radiculopathy.

The diagnosis is clinical. Diagnostic criteria for superior cluneal nerve (SCN) entrapment; Low back pain involving the iliac crest and buttocks, symptoms aggravated by lumbar movement or posture, trigger point over the posterior iliac crest corresponding to the nerve compression zone, patients report numbness and radiating pain in the SCN area (Tinel sign) when the trigger point is compressed, symptom relief by SCN block at the trigger point.

Prevalence studies of superior cluneal nerve entrapment syndrome are very few. Maigne et al reported superior cluneal nerve entrapment in 1.6% of 1,800 patients with low back pain. Kuniya et al showed that 14% of 834 patients with low back pain met the criteria for superior cluneal nerve entrapment. Superior cluneal nerve entrapment is not as rare as it is thought to be among the causes of low back pain. In Turkey, there is no study showing the prevalence of the superior cluneal nerve or its importance in patients with low back pain.

The aim of this study is to examine the patients who applied to Cerrahpasa Faculty of Medicine, Department of Physical Medicine and Rehabilitation polyclinic with low back pain; To confirm the diagnosis with an ultrasound-guided diagnostic injection test, to determine the importance of superior cluneal nerve entrapment.

Conditions

  • Low Back Pain
  • Nerve Entrapment Syndrome
  • Radiating Pain

Interventions

DIAGNOSTIC_TEST

ultrasound-guided diagnostic nerve block with lidocaine

Patients with a trigger point in the posterior iliac crest will be evaluated by a second physician and diagnostic nerve block will be performed ultrasound-guided with the preliminary diagnosis of superior cluneal nerve entrapment. General Electric LogiqP5 model ultrasound device will be used and lidocaine will be applied between the posterior iliac crest and thoracolumbar fascia, which is viewed under the guidance of ultrasonography, for diagnosis and treatment.

Sponsors & Collaborators

  • Istanbul University - Cerrahpasa

    lead OTHER

Principal Investigators

  • Kenan Akgun · Istanbul University - Cerrahpasa

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-04-01
Primary Completion
2022-06-01
Completion
2022-07-01

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05303597 on ClinicalTrials.gov