A Comparison of Ultrasound-guided Steroid Injection With Wrist Splint in Carpal Tunnel Syndrome

NCT ID: NCT04515966

Last Updated: 2021-09-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-12-01

Study Completion Date

2022-11-01

Brief Summary

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Carpal Tunnel Syndrome (CTS) is caused by compression of a nerve called the median nerve as it travels through a narrow tunnel within the wrist on its way to the hand. Compression of the median nerve causes numbness, tingling, pain and weakness of the hand and fingers. CTS is usually treated with rest or a change in the activity level. It can also be treated with a splint that limits bending of the hand and wrist. Other treatments include a steroid injection near the median nerve. Surgery can be performed if the symptoms are severe or persistent.

Compression of the median nerve can cause swelling that may be observed with ultrasound of the wrist. Ultrasound can also be used to help guide the needle to inject the steroid solution in close proximity to the median nerve while avoiding injury to the nerve.

The investigators plan to compare the effectiveness of a splint and an ultrasound-guided steroid injection in the treatment of mild to moderate CTS. Individuals with CTS who agree to participate, will be randomly assigned to two groups. One group will be treated with a splint and the other with a steroid injection performed under ultrasound guidance. The severity of CTS symptoms will be determined prior to beginning the study and also at 6 weeks, 3 months, 6 months and 1 year following each of the two treatment interventions. The median nerve size (diameter) will be measured in all participants prior to beginning the study and also following both treatment interventions at 6 weeks, 3 months, 6 months and 1 year.

At the conclusion of the study, the investigators will determine which of the two treatments, splint or steroid injection, is more effective in alleviating CTS symptoms. The investigators will also determine if either or both treatments result in a change in swelling of the median nerve as measured by ultrasound.

Detailed Description

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The purpose of the study is to determine which of two commonly used therapeutic interventions for the treatment of carpal tunnel syndrome (CTS), steroid injection or wrist splint, is more effective in alleviating symptoms. The protocol has been approved by the Medical Research Committee and by the Institutional Review Board, Mercy Health, Youngstown.

The steroid injection will be administered under ultrasound guidance to ensure proper placement of the needle in close proximity to the median nerve within the carpal tunnel and to minimize the risk of direct trauma to the nerve.

Candidates for the study will be individuals with CTS presenting to primary care offices located in the Boardman, Ohio area. Following a detailed explanation of the study purpose and protocol, those individuals who agree to participate will be asked to sign an informed consent form.

A complete history and physical examination will be performed on all participants to confirm the diagnosis. Additionally, baseline ultrasound measurement of the median nerve cross-sectional area within the carpal tunnel will be performed on all participants. The diagnosis of CTS will be made on clinical grounds, and the CTS-6 evaluation tool will also be used in the diagnostic evaluation. A score above 12 will be considered consistent with CTS. Participants with moderately severe CTS will undergo a nerve conduction study to confirm the diagnosis and exclude early signs of denervation which may require surgical decompression.

Participants will be randomized into two groups of thirty-five patients each; those in group A will undergo ultrasound-guided steroid injection and those in group B will be asked to wear a standard carpal tunnel splint. Participants will be randomly assigned to either intervention group with the use of a computer-generated random sequence of numbers from 1 to 70. The primary investigator (Roy Morcos) will be responsible for maintaining confidential records in a secure location.

The injections will be performed by Dr. Morcos and Dr. Dhungana. Dr. Morcos received training in ultrasonography during a fellowship program and has published on the subject. He has been performing ultrasound examinations and injections for the past 35 years. Dr. Dhungana is an orthopedic surgeon with expertise in carpal tunnel steroid injections.

With the participant seated and the forearm supinated, the wrist is slightly dorsiflexed. The median nerve is identified with real-time ultrasonography and its cross-sectional area measured. Injection near the median nerve within the carpal tunnel is performed under aseptic technique and ultrasound guidance, using a 25-gauge needle to minimize discomfort.

Group A: A mixture of 0.5 ml of depo-Medrol (methylprednisolone acetate 40mg/ml) and 0.5 mL of 1% lidocaine will be injected into the carpal tunnel under ultrasound guidance in close proximity to the median nerve. After completion of the injection, the distal carpal tunnel is scanned to ensure even injectate distribution within the distal aspect of the carpal tunnel.

Group B: Patients in this group will be advised to wear a standard carpal tunnel splint with the hand in neutral position. The splint will be provided to all participants. They will be advised to wear it during the night and most of the time during day.

The median nerve cross-sectional area is measured in all patients at baseline, 6 weeks and 3 months following interventions.

Follow-up is scheduled 6 weeks, 3 months, 6 months and one year. At each follow-up visit, clinical evaluation is obtained using the BCTQ score, which determines the degree of symptomatic severity and functional recovery. A visual analog scale (VAS) for pain, 0 for no pain and 10 for severe unbearable pain, will also be obtained. Follow-up will continue for a year including history and physical examination.

Descriptive statistics will be used to characterize the data using the mean, standard deviation, and median. For parameter with subset scales and values, box and whisker plots will be used to show patterns of parameter behavior. Where levels of measures are appropriate, independent samples t-tests are performed to compare outcomes of each intervention. Where appropriate, a non-parametric test such as the Mann-Whitney U test, is used to assess differences of parameter values both over periods of follow up and between two treatments.

The measures of effect are as follows: Pain, Symptom severity, Functional disability, Median nerve diameter, Median nerve cross sectional area. Three of the parameters are from arbitrary scales consisting of standard questionnaires. Two of the parameters are composite values derived from scores with differing weightings. Two anatomic measures are based on metric measurements obtained by ultrasound. All measures will be taken before treatment and at 6 weeks, 12 weeks, 6 months and 1 year. Based on an assumed BCTS Pain Score treatment effect of 1.5 with standard deviation of 3.0 with 2-sided α of 0.05 and a power of 0.87, the minimum required sample size in each study group is 32. Considering loss to follow-up over a period of one year, the investigators plan to recruit 70 subjects.

Conditions

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Carpal Tunnel Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Ultrasound-guided steroid injection

Participants with CTS who meet the inclusion criteria are randomized to two groups. One group (or arm) will receive an ultrasound-guided steroid injection in the vicinity of the median nerve within the carpal tunnel. A total 1 ml of injectate consisting of 0.5 ml of depo-Medrol (methylprednisolone acetate 40mg/ml) and 0.5 mL of 1% lidocaine is injected into the carpal tunnel under ultrasound guidance to deliver it into the target area. After completion of the injection, the distal carpal tunnel is scanned to ensure injectate distribution within the distal aspect of the carpal tunnel.

Group Type ACTIVE_COMPARATOR

Methylprednisolone Injection [Solu-Medrol]

Intervention Type DRUG

A total 1 ml of injectate consisting of 0.5 ml of depo-Medrol (methylprednisolone acetate 40mg/ml) and 0.5 mL of 1% lidocaine will be injected into the carpal tunnel under ultrasound guidance to deliver it into the target area. After completion of the injection, the distal carpal tunnel is scanned to ensure injectate distribution within the distal aspect of the carpal tunnel.

Wrist splint

Participants in this arm are treated with a wrist splint.

Group Type ACTIVE_COMPARATOR

wrist splint

Intervention Type DEVICE

A standard wrist splint

Interventions

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Methylprednisolone Injection [Solu-Medrol]

A total 1 ml of injectate consisting of 0.5 ml of depo-Medrol (methylprednisolone acetate 40mg/ml) and 0.5 mL of 1% lidocaine will be injected into the carpal tunnel under ultrasound guidance to deliver it into the target area. After completion of the injection, the distal carpal tunnel is scanned to ensure injectate distribution within the distal aspect of the carpal tunnel.

Intervention Type DRUG

wrist splint

A standard wrist splint

Intervention Type DEVICE

Other Intervention Names

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Lidocaine, 1% solution

Eligibility Criteria

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Inclusion Criteria

* Subjects with typical symptoms of CTS, including nocturnal, postural, or usage-associated paresthesia of the hand
* symptoms persisting for at least 3 months before the study
* Patients with mild to moderate symptoms
* no history of steroid injections in the past
* no history of CT release surgery
* and age 18 to 75.

Exclusion Criteria

* Thenar atrophy or muscle weakness
* severe CTS
* pregnancy
* hypothyroidism
* diabetes mellitus
* chronic renal failure
* rheumatoid arthritis
* orthopedic or neurological disorders that could mimic CTS such as cervical radiculopathy, polyneuropathy, proximal median nerve entrapment, or thoracic outlet syndrome
* history of distal radius fracture
* anticoagulation
* chronic use of systemic corticosteroids
* known allergy to corticosteroids and local anesthetics.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mercy Health Ohio

OTHER

Sponsor Role lead

Responsible Party

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Roy Morcos

Professor, Family and Community Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Roy N. Morcos, M.D.

Role: PRINCIPAL_INVESTIGATOR

Bon Secours Mercy Health

Locations

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St. Elizabeth Boardman Family Medicine

Boardman, Ohio, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Roy N. Morcos, M.D.

Role: CONTACT

(330)729-8700

Facility Contacts

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Roy Morcos, MD

Role: primary

References

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Klauser AS, Halpern EJ, Faschingbauer R, Guerra F, Martinoli C, Gabl MF, Arora R, Bauer T, Sojer M, Loscher WN, Jaschke WR. Bifid median nerve in carpal tunnel syndrome: assessment with US cross-sectional area measurement. Radiology. 2011 Jun;259(3):808-15. doi: 10.1148/radiol.11101644. Epub 2011 Mar 8.

Reference Type BACKGROUND
PMID: 21386049 (View on PubMed)

Demircay E, Civelek E, Cansever T, Kabatas S, Yilmaz C. Anatomic variations of the median nerve in the carpal tunnel: a brief review of the literature. Turk Neurosurg. 2011;21(3):388-96. doi: 10.5137/1019-5149.JTN.3073-10.1.

Reference Type BACKGROUND
PMID: 21845577 (View on PubMed)

Karadas O, Tok F, Akarsu S, Tekin L, Balaban B. Triamcinolone acetonide vs procaine hydrochloride injection in the management of carpal tunnel syndrome: randomized placebo-controlled study. J Rehabil Med. 2012 Jun;44(7):601-4. doi: 10.2340/16501977-0990.

Reference Type BACKGROUND
PMID: 22674243 (View on PubMed)

Tagliafico A, Bodner G, Rosenberg I, Palmieri F, Garello I, Altafini L, Martinoli C. Peripheral nerves: ultrasound-guided interventional procedures. Semin Musculoskelet Radiol. 2010 Nov;14(5):559-66. doi: 10.1055/s-0030-1268066. Epub 2010 Nov 11.

Reference Type BACKGROUND
PMID: 21072732 (View on PubMed)

Chesterton LS, Blagojevic-Bucknall M, Burton C, Dziedzic KS, Davenport G, Jowett SM, Myers HL, Oppong R, Rathod-Mistry T, van der Windt DA, Hay EM, Roddy E. The clinical and cost-effectiveness of corticosteroid injection versus night splints for carpal tunnel syndrome (INSTINCTS trial): an open-label, parallel group, randomised controlled trial. Lancet. 2018 Oct 20;392(10156):1423-1433. doi: 10.1016/S0140-6736(18)31572-1.

Reference Type BACKGROUND
PMID: 30343858 (View on PubMed)

Padua L, Coraci D, Erra C, Pazzaglia C, Paolasso I, Loreti C, Caliandro P, Hobson-Webb LD. Carpal tunnel syndrome: clinical features, diagnosis, and management. Lancet Neurol. 2016 Nov;15(12):1273-1284. doi: 10.1016/S1474-4422(16)30231-9. Epub 2016 Oct 11.

Reference Type BACKGROUND
PMID: 27751557 (View on PubMed)

Middleton SD, Anakwe RE. Carpal tunnel syndrome. BMJ. 2014 Nov 6;349:g6437. doi: 10.1136/bmj.g6437. No abstract available.

Reference Type BACKGROUND
PMID: 25378457 (View on PubMed)

Calandruccio JH, Thompson NB. Carpal Tunnel Syndrome: Making Evidence-Based Treatment Decisions. Orthop Clin North Am. 2018 Apr;49(2):223-229. doi: 10.1016/j.ocl.2017.11.009. Epub 2018 Feb 1.

Reference Type BACKGROUND
PMID: 29499823 (View on PubMed)

Kim PT, Lee HJ, Kim TG, Jeon IH. Current approaches for carpal tunnel syndrome. Clin Orthop Surg. 2014 Sep;6(3):253-7. doi: 10.4055/cios.2014.6.3.253. Epub 2014 Aug 5.

Reference Type BACKGROUND
PMID: 25177448 (View on PubMed)

Jarvik JG, Comstock BA, Kliot M, Turner JA, Chan L, Heagerty PJ, Hollingworth W, Kerrigan CL, Deyo RA. Surgery versus non-surgical therapy for carpal tunnel syndrome: a randomised parallel-group trial. Lancet. 2009 Sep 26;374(9695):1074-81. doi: 10.1016/S0140-6736(09)61517-8.

Reference Type BACKGROUND
PMID: 19782873 (View on PubMed)

So H, Chung VCH, Cheng JCK, Yip RML. Local steroid injection versus wrist splinting for carpal tunnel syndrome: A randomized clinical trial. Int J Rheum Dis. 2018 Jan;21(1):102-107. doi: 10.1111/1756-185X.13162. Epub 2017 Sep 13.

Reference Type BACKGROUND
PMID: 28901660 (View on PubMed)

Evers S, Bryan AJ, Sanders TL, Selles RW, Gelfman R, Amadio PC. Effectiveness of Ultrasound-Guided Compared to Blind Steroid Injections in the Treatment of Carpal Tunnel Syndrome. Arthritis Care Res (Hoboken). 2017 Jul;69(7):1060-1065. doi: 10.1002/acr.23108. Epub 2017 Jun 8.

Reference Type BACKGROUND
PMID: 27696773 (View on PubMed)

Khosrawi S, Emadi M, Mahmoodian AE. Effectiveness of splinting and splinting plus local steroid injection in severe carpal tunnel syndrome: A Randomized control clinical trial. Adv Biomed Res. 2016 Feb 8;5:16. doi: 10.4103/2277-9175.175902. eCollection 2016.

Reference Type BACKGROUND
PMID: 26962518 (View on PubMed)

Other Identifiers

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20-006

Identifier Type: -

Identifier Source: org_study_id

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