Clinical trial NCT00032227: Carpal Tunnel Syndrome: Diagnosis and Treatment Trial
Official title: Carpal Tunnel Syndrome: Diagnosis and Treatment Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Carpal Tunnel Syndrome
Keywords: Carpal Tunnel Release
MR Nerve Imaging
Wrist MRI
Lead sponsor: University of Washington
Sponsor class: OTHER
Collaborators: name: National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
First posted: 2002-03-13
Enrollment: 116
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The Carpal Tunnel Syndrome Diagnosis and Treatment Trial is project #1 of the Multidisciplinary Clinical Research Center focused on upper extremity pain. It is a randomized trial comparing surgical and nonsurgical treatments for patients with early, mild to moderate carpal tunnel syndrome. In addition the study will evaluate the ability of a new magnetic resonance (MR) technique at predicting who will likely benefit from carpal tunnel syndrome (CTS) surgery.

Detailed description: While there is good evidence that patients with severe CTS benefit from surgery, there is less evidence of a benefit for patients with mild to moderate disease. However, mild to moderate disease still accounts for important disability. Electrodiagnostic studies (EDS) have not been shown to accurately predict outcomes for patients with CTS. Recent advances in MR permit high-resolution neurographic imaging of the median nerve, and pilot data suggest that wrist MRI might be a better predictor of outcome than EDS. Thus, wrist MRI has the potential for playing a major role in the treatment of patients with CTS. We will test two main hypotheses: 1) that select patients with early, mild or moderate CTS benefit more from early surgery than with conservative therapy; and, 2) that wrist MRI accurately identifies those patients more likely to benefit from surgery. We will perform a randomized, controlled treatment trial nested within a prospective cohort as our study design.

Eligibility criteria: Inclusion Criteria:

* Paresthesias involving 2 digits on hand diagram
* Willingness and ability to complete interviews

Exclusion Criteria:

* Evidence of denervation on EDS
* Abnormal 2-pt discrimination or thenar atrophy
* Prior wrist surgery or acute external trauma
* MRI contraindications
* Metallic hardware in wrists

Primary outcomes:
measure: Carpal Tunnel Syndrome Assessment Questionnaire- function scale
timeFrame: 12 months
Secondary outcomes:
measure: CTSAQ symptom scale
timeFrame: 12 months
measure: CTSAQ-function
timeFrame: 3 months
measure: CTSAQ-symptom
timeFrame: 3 months
measure: SF36
timeFrame: 12 months
Other outcomes:
Locations:
city: Seattle
country: United States
facility: University of Washington Medical Center
state: Washington
Study officials:
affiliation: University of Washington
name: Jeffrey G. Jarvik, MD, MPH
role: PRINCIPAL_INVESTIGATOR
References:
citation: Jarvik JG, Yuen E. Diagnosis of carpal tunnel syndrome: electrodiagnostic and magnetic resonance imaging evaluation. Neurosurg Clin N Am. 2001 Apr;12(2):241-53.
citation: Grant GA, Britz GW, Goodkin R, Jarvik JG, Maravilla K, Kliot M. The utility of magnetic resonance imaging in evaluating peripheral nerve disorders. Muscle Nerve. 2002 Mar;25(3):314-31. doi: 10.1002/mus.10013.
citation: Aagaard BD, Lazar DA, Lankerovich L, Andrus K, Hayes CE, Maravilla K, Kliot M. High-resolution magnetic resonance imaging is a noninvasive method of observing injury and recovery in the peripheral nervous system. Neurosurgery. 2003 Jul;53(1):199-203; discussion 203-4. doi: 10.1227/01.neu.0000069534.43067.28.
citation: Jarvik JG, Yuen E, Haynor DR, Bradley CM, Fulton-Kehoe D, Smith-Weller T, Wu R, Kliot M, Kraft G, Wang L, Erlich V, Heagerty PJ, Franklin GM. MR nerve imaging in a prospective cohort of patients with suspected carpal tunnel syndrome. Neurology. 2002 Jun 11;58(11):1597-602. doi: 10.1212/wnl.58.11.1597.
citation: Jarvik JG, Yuen E, Kliot M. Diagnosis of carpal tunnel syndrome: electrodiagnostic and MR imaging evaluation. Neuroimaging Clin N Am. 2004 Feb;14(1):93-102, viii. doi: 10.1016/j.nic.2004.02.002.
citation: Martin BI, Levenson LM, Hollingworth W, Kliot M, Heagerty PJ, Turner JA, Jarvik JG. Randomized clinical trial of surgery versus conservative therapy for carpal tunnel syndrome [ISRCTN84286481]. BMC Musculoskelet Disord. 2005 Jan 18;6:2. doi: 10.1186/1471-2474-6-2.
citation: Storm S, Beaver SK, Giardino N, Kliot M, Franklin GM, Jarvik JG, Chan L. Compliance with electrodiagnostic guidelines for patients undergoing carpal tunnel release. Arch Phys Med Rehabil. 2005 Jan;86(1):8-11; quiz 180. doi: 10.1016/j.apmr.2004.02.027.
citation: 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.