Clinical trial NCT03381521: The Volume Effect of Nerve Hydrodissection for Carpal Tunnel Syndrome
Official title: The Clinical Volume Effect of Nerve Hydrodissection in Patients With Carpal Tunnel Syndrome
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Carpal Tunnel Syndrome
Keywords: nerve hydrodissection
Lead sponsor: Tri-Service General Hospital
Sponsor class: OTHER
First posted: 2017-12-22
Enrollment: 24
Sex: ALL
Minimum age (years): 20
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Carpal tunnel syndrome (CTS) is the most common peripheral entrapment neuropathy with involving compression of the median nerve in the carpal tunnel. Although many conservative managements of CTS, the effectiveness of these methods is insignificant or only persist for a short duration. The technique of nerve hydrodissection is now commonly used for peeling the nerve from surrounding soft tissue, which may help allow the impulse to pass, and rescue the nerve with ischemic damage. However, the exact effect and interval of hydrodissection are unknown because of the lack of well-designed studies Hence, investigators design a randomized, double- blind, controlled trail to assess the therapeutic effect of ultrasound-guided nerve hydrodissection in patients with CTS.

Detailed description: After obtaining written informed consent, patients clinically diagnosed with mild-to-moderate CTS were inclused and randomized into three groups. Group A, patients received one-session of ultrasoung-guided nerve hydrodissection with 10cc normal saline; Group B, patients received one-session of ultrasoung-guided nerve hydrodissection with 5cc normal saline; The injection syringe was covered to obscure the nature of its contents and patients were asked to turn their head away so that they would not see the procedure. As a result, patients were blinded to the treatment condition. The primary outcome is Boston Carpal Tunnel Syndrome Questionnaire (BCTQ) and secondary outcomes include visual analog scale (VAS), cross-sectional area (CSA) of the median nerve, sensory nerve conduction velocity of the median nerve, and global assessment of treatment. The evaluations were performed pretreatment as well as on the 2nd week, 1st, 3rd and 6th month after injecton.

Eligibility criteria: Inclusion Criteria:

* Age between 20-80 year-old.
* Diagnosis was confirmed using an electrophysiological study

Exclusion Criteria:

* Cancer
* Coagulopathy
* Pregnancy
* Inflammation status
* Cervical radiculopathy
* Polyneuropathy, brachial plexopathy
* Thoracic outlet syndrome
* Previously undergone wrist surgery or steroid injection for CTS

Primary outcomes:
measure: Change from baseline of severity of symptoms and functional status on 2nd week, 1st, 3rd and 6th month after injection
timeFrame: Pre-treatment, 2nd week, 1st, 3rd and 6th month after injection
Secondary outcomes:
measure: Change from baseline of pain on 2nd week, 1st, 3rd and 6th month after injection
timeFrame: Pre-treatment, 2nd week, 1st, 3rd and 6th month after injection
measure: Change from baseline of cross-sectional area of the median nerve on 2nd week, 1st, 3rd and 6th month after injection
timeFrame: Pre-treatment, 2nd week, 1st, 3rd and 6th month after injection
measure: Change from baseline of conduction velocity, amplitude of median nerve on 2nd week, 1st, 3rd and 6th month after injection
timeFrame: Pre-treatment, 2nd week, 1st, 3rd and 6th month after injection
Other outcomes:
Locations:
city: Taipei
country: Taiwan
facility: Department of Physical Medicine and Rehabilitation, Tri-Service General Hospital
state: Neihu District
Study officials:
affiliation: Department of Physical Medicine and Rehabilitation, Tri-Service General Hospital
name: Yung-Tsan Wu, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Wu YT, Ho TY, Chou YC, Ke MJ, Li TY, Tsai CK, Chen LC. Six-month Efficacy of Perineural Dextrose for Carpal Tunnel Syndrome: A Prospective, Randomized, Double-Blind, Controlled Trial. Mayo Clin Proc. 2017 Aug;92(8):1179-1189. doi: 10.1016/j.mayocp.2017.05.025.
citation: Choi CK, Lee HS, Kwon JY, Lee WJ. Clinical implications of real-time visualized ultrasound-guided injection for the treatment of ulnar neuropathy at the elbow: a pilot study. Ann Rehabil Med. 2015 Apr;39(2):176-82. doi: 10.5535/arm.2015.39.2.176. Epub 2015 Apr 24.
citation: Evers S, Thoreson AR, Smith J, Zhao C, Geske JR, Amadio PC. Ultrasound-guided hydrodissection decreases gliding resistance of the median nerve within the carpal tunnel. Muscle Nerve. 2018 Jan;57(1):25-32. doi: 10.1002/mus.25723. Epub 2017 Jul 6.