Sonographic Evaluation of Patients With Carpal Tunnel Syndrome Following Steroid Injection

April 24, 2017 updated by: Taipei Veterans General Hospital, Taiwan
The objective of this study was to assess sonographic changes of the median nerve after steroid injection for carpal tunnel syndrome.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Patients with CTS were recruited. The Boston Questionnaire (BQ) was administered and ultrasonographic and electrophysiological examinations were performed before and at two, six, and 12 weeks after steroid injection. Cross sectional area (CSA) was measured at 2 levels: at the tunnel inlet and in the mid-carpal tunnel. Flattening ratio (FR) was measured only in the mid-carpal tunnel. Correlation analyses between baseline ultrasonography, BQ, and electrophysiological measures were performed.

Study Type

Interventional

Enrollment (Anticipated)

54

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Taiwan
      • Taipei, Taiwan
        • Recruiting
        • Teipei Veterans General Hospital
        • Contact:
          • Jia chi Wang, MD
          • Phone Number: 886-2-28757361

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. clinical diagnosis of CTS
  2. The diagnosis of CTS was confirmed by electrophysiological tests.

Exclusion Criteria:

  1. neurologic disorders that could mimic CTS such as cervical radiculopathy, polyneuropathy, proximal median nerve entrapment, or thoracic outlet syndrome
  2. history of distal radius fracture
  3. pregnancy or lactation
  4. regular use of systemic NSAIDs or corticosteroids
  5. known allergy to corticosteroids and local anesthetics.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: steroid injection
ultrasound-guided steroid injection using 1ml of 10 mg (10mg/ml) triamcinolone acetonide
Drug: steroid injection
ultrasound-guided steroid injection using 1ml of 10 mg (10mg/ml) triamcinolone acetonide
Other Names:
  • triamcinolone acetonide

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cross sectional area
Time Frame: 12 weeks
The CSA of the median nerve was measured at 2 levels: at the carpal tunnel inlet (CSA-I; immediately prior to the proximal margin of the flexor retinaculum) and in the mid-carpal tunnel (CSA-M; at the level of the pisiform bone and scaphoid tubercle)
12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
flattening ratio
Time Frame: 2, 6, 12 weeks
The flattening ratio was measured only at the mid-tunnel (FR-M). FR was calculated by dividing the horizontal diameter of the nerve by the vertical diameter.
2, 6, 12 weeks
Boston Carpal Tunnel Questionnaire (BQ)
Time Frame: 2, 6, 12 weeks
The BQ was interviewed-administered to assess the severity of symptoms and functional status.
2, 6, 12 weeks
Median nerve distal motor latency
Time Frame: 2, 6, 12 weeks
the CMAPs were obtained via surface electrodes placed on the abductor pollicis brevis muscle. The active recording electrode was placed on the muscle belly, and the reference electrode was placed on the tendon insertion. The median nerve was stimulated 8 cm proximal to the active recording electrode. Distal motor latencies were measured from the onset of stimulus artifact to the onset of the CMAP
2, 6, 12 weeks
sensory nerve conduction velocity
Time Frame: 2, 6, 12 weeks
SNAPs were obtained using an antidromic method and recorded by surface electrodes placed at the proximal and distal interphalangeal joints of the index finger for the median nerve and the same joints of the little finger for the ulnar nerve. The median nerves were stimulated at the wrist at a distance of 14 cm from the wrist to the active electrode. Distal sensory latencies were measured from the onset of the stimulus artifact to the onset of the SNAP. SNCV was calculated dividing the distance of 14 cm by the distal sensory latency.
2, 6, 12 weeks
compound muscle action potential amplitude (CMAP)
Time Frame: 2, 6, 12 weeks
the CMAPs were obtained via surface electrodes placed on the abductor pollicis brevis muscle. The active recording electrode was placed on the muscle belly, and the reference electrode was placed on the tendon insertion. The median nerve was stimulated 8 cm proximal to the active recording electrode. The amplitude of CMAP were measured from baseline to negative peak.
2, 6, 12 weeks
sensory nerve action potential amplitudes.
Time Frame: 2, 6, 12 weeks
SNAPs were obtained using an antidromic method and recorded by surface electrodes placed at the proximal and distal interphalangeal joints of the index finger for the median nerve and the same joints of the little finger for the ulnar nerve. The median nerves were stimulated at the wrist at a distance of 14 cm from the wrist to the active electrode. The amplitude of SNAP were measured from baseline to negative peak.
2, 6, 12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Taipei Veterans General Hospital, Taiwan

Investigators

  • Principal Investigator: Jia chi Wang, Taipei Veteran General Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2013

Primary Completion (Anticipated)

February 1, 2018

Study Completion (Anticipated)

February 1, 2018

Study Registration Dates

First Submitted

February 16, 2017

First Submitted That Met QC Criteria

April 24, 2017

First Posted (Actual)

April 27, 2017

Study Record Updates

Last Update Posted (Actual)

April 27, 2017

Last Update Submitted That Met QC Criteria

April 24, 2017

Last Verified

February 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2016-07-006A; 2012-05-021A

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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