ISRCTN ISRCTN18853827
DOI https://doi.org/10.1186/ISRCTN18853827
Secondary identifying numbers OG97-013
Submission date
11/02/2002
Registration date
11/02/2002
Last edited
27/10/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nervous System Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Ms Annette Gerritsen
Scientific

EMGO-Institute
VU University Medical Centre
Van der Boechorststraat 7
Amsterdam
1081 BT
Netherlands

Phone +31 (0)20-444 8088
Email aam.gerritsen.emgo@med.vu.nl

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleSplinting or surgery for carpal tunnel syndrome
Study objectives1. To determine the short and long-term efficacy of splinting compared with early surgery in relieving Carpal Tunnel Syndrome (CTS) symptoms
2. To assess from a societal perspective the cost-effectiveness of these treatment options
Ethics approval(s)The Medical Ethics Committees of the 13 participating hospitals approved the study protocol.
Health condition(s) or problem(s) studiedCarpal tunnel syndrome
Intervention1. Wrist splint
2. Open carpal tunnel release
Intervention typeOther
Primary outcome measure1. General improvement, scored by the patient on a 6-point ordinal transition scale, ranging from 'completely recovered' to 'much worse'
2. The number of nights that the patient awoke, due to the symptoms, during the past week
3. The severity of the most important symptoms

In order to study short and long-term treatment effects, data are collected in the hospital at baseline and at 3, 6 and 12 months after randomisation. Additional postal questionnaires are sent to the patients in the months that they do not visit the hospital (1, 2, 4, 5, 7, 8, 9, 10 and 11 months after randomisation), and again 18 months after randomisation.
Secondary outcome measures1. Patient satisfaction, using an 11-point numerical rating scale, ranging from 0 'very unsatisfied' to 10 'completely satisfied'
2. Use of pain medication for the symptoms during the past week (yes/no)
3. The severity of symptoms and functional status, assessed by means of a self-administered questionnaire, containing two scales (the Symptom Severity Scale and the Functional Status Scale)
4. The overall severity of CTS complaints
5. Results of electrodiagnostic studies

Other outcome measures:
1. Compliance with treatment
2. Adverse effects
3. Direct and indirect costs
4. Success of blinding

In order to study short and long-term treatment effects, data are collected in the hospital at baseline and at 3, 6 and 12 months after randomisation. Additional postal questionnaires are sent to the patients in the months that they do not visit the hospital (1, 2, 4, 5, 7, 8, 9, 10 and 11 months after randomisation), and again 18 months after randomisation.
Overall study start date01/01/2002
Completion date01/01/2003

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants190
Total final enrolment176
Key inclusion criteria1. Pain, paraesthesias and/or hypoesthesias in the hand, in the area innervated by the median nerve
2. Clinical diagnosis of CTS has to be confirmed by electrodiagnostic studies
3. Aged 18 years or older
4. Able to complete written questionnaires (in Dutch)
Key exclusion criteria1. Already been treated with a wrist splint or have had previous carpal tunnel release
2. A history of wrist or median nerve injury from trauma (e.g. contusion, fractures) or prior surgery on the wrist
3. A history suggesting underlying causes of CTS, such as diabetes mellitus, thyroid disease, rheumatoid arthritis, chronic renal failure treated by hemodialysis, space-occupying lesions in the volar wrist area, anatomic abnormalities of the wrist or hand
4. Pregnancy or lactation
5. Clinical signs or symptoms, or electrodiagnostic studies suggesting conditions that could mimic CTS or interfere with its validation, such as cervical radiculopathy, brachial plexopathy, thoracic outlet syndrome, pronator teres syndrome, ulnar neuropathy, polyneuropathy, Raynaud's disease or sympathetic dystrophy
6. Severe thenar muscle atrophy
Date of first enrolment01/01/2002
Date of final enrolment01/01/2003

Locations

Countries of recruitment

  • Netherlands

Study participating centre

EMGO-Institute
Amsterdam
1081 BT
Netherlands

Sponsor information

Dutch Health Care Insurance Company (The Netherlands)
Government

-
Amsterdam
-
Netherlands

Funders

Funder type

Government

Dutch Health Care Insurance Company (The Netherlands) (ref: OG 97-013)

No information available

Anna Fonds Foundation (The Netherlands)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article 18/12/2001 Yes No
Results article 11/09/2002 27/10/2022 Yes No

Editorial Notes

27/10/2022: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.