NCT04004052

Brief Summary

Meralgia paresthetica (MP) is an entrapment mononeuropathy of the lateral femoral cutaneous nerve (LFCN), where conservative treatment options are not always sufficient. The aim of this study was to evaluate the efficacy of ultrasound (US) guided lateral femoral cutaneous nerve injection in the management of meralgia paresthetica by comparing with transcutaneous electrical nerve stimulation (TENS) therapy and sham transcutaneous electrical nerve stimulation therapy.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2014

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2014

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2015

Completed
4.4 years until next milestone

First Submitted

Initial submission to the registry

May 17, 2019

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 1, 2019

Completed
Last Updated

February 20, 2020

Status Verified

February 1, 2020

Enrollment Period

1 year

First QC Date

May 17, 2019

Last Update Submit

February 18, 2020

Conditions

Keywords

Meralgia parestheticaUltrasound-guided injectionTranscutaneous electrical nerve stimulation

Outcome Measures

Primary Outcomes (3)

  • Visual Analog Scale

    The VAS was used to record each patient's current level of pain with 0 indicating no pain and 10 indicating the worst pain that the patient had ever experienced. Using a ruler marked in centimeters, the examiner obtained the exact values along a 10-cm VAS line.

    1 months

  • painDETECT questionnaire

    It consists of seven items evaluating pain qualities, one evaluating the course of pain, and one evaluating pain radiation. Additionally, the questionnaire contains three numerical rating scales (NRSs) of 0-10 for current, worst, and average pain severity. An overall score is generated that summarizes everything but the pain intensity NRS, which ranges between -1 and 38. An overall score of \>18 indicates likely Neuropathic pain, 13-18 possible Neuropathic pain, and \< 13 unlikely Neuropathic pain.

    1 months

  • Semmes-Weinstein monofilament test

    Cutaneous pressure threshold was measured by touch test using a device with nylon Semmes-Weinstein monofilaments (SWMt) embedded in a plastic handle. A small pushing force is applied anterolateral femoral skin area for 1-1,5 seconds to push the filaments. A medical staff member presses the filaments at an angle of approximately 90° against the patient's thigh. This test is useful for medical staff because it is simple and easy. The threshold was defined as the lightest filament that the subject responses correctly at least two out of the three trials. The filaments are labeled with a numerical marking, which is a log to the base ten of the force in tenth of milligrams. Applications was made where the most symptoms has been observed in the patient's anterolateral thigh.

    1 months

Secondary Outcomes (2)

  • Short Form (SF-36) Health Questionnaire

    1 months

  • Pittsburgh Sleep Quality Index (PSQI)

    1 Months

Study Arms (3)

Group 1

ACTIVE COMPARATOR

Blockade of the LFCN is performed for therapeutic management of MP in group 1.

Other: Ultrasound guided injection

Group 2

ACTIVE COMPARATOR

Ten sessions of conventional TENS were applied to the group 2 daily 20 minutes per session, 5 days per week, for 2 weeks.

Other: Transcutaneous Electrical Nerve Stimulation (TENS)

Group 3

SHAM COMPARATOR

Sham TENS was applied to the group 3 with the same protocol.

Other: Sham Transcutaneous Electrical Nerve Stimulation (TENS)

Interventions

Eligibility Criteria

Age42 Years - 64 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Patients diagnosed with LFCN entrapment confirmed by clinical and electrophysiological findings

You may not qualify if:

  • Secondary entrapment neuropathy
  • Malignancy
  • Pregnancy
  • Infection in the inguinal region or dermatitis
  • Lumbar radiculopathy
  • Cardiac pacemakers
  • Polyneuropathy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Femoral Neuropathy

Interventions

Transcutaneous Electric Nerve Stimulation

Condition Hierarchy (Ancestors)

MononeuropathiesPeripheral Nervous System DiseasesNeuromuscular DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsPhysical Therapy ModalitiesRehabilitationAnalgesiaAnesthesia and Analgesia

Study Officials

  • Gülcan Öztürk, MD

    Fatih Sultan Training and Research Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 17, 2019

First Posted

July 1, 2019

Study Start

January 1, 2014

Primary Completion

January 1, 2015

Study Completion

January 1, 2015

Last Updated

February 20, 2020

Record last verified: 2020-02

Data Sharing

IPD Sharing
Will not share

This was a prospective, randomized, sham controlled study. Patients were randomly distributed into three groups: 1)US-guided injection group, 2)TENS group, 3)Sham TENS group. Blockade of the LFCN is performed for therapeutic management of MP in group 1. Ten sessions of conventional TENS were applied to the group 2 daily 20 minutes per session, 5 days per week, for 2 weeks while sham TENS was applied to the group 3 with the same protocol. Visual Analog Scale (VAS), painDETECT score, The Semmes-Weinstein monofilaments test (SWMt), The Pittsburgh Sleep Quality Index (PSQI), and assessment of health-related quality of life (SF 36) were used for evaluation at baseline (T1), post-treatment 15ᵗʰ day (T2), and 1st month post-treatment (T3).