Upper Extremity Functional Index in Carpal Tunnel Syndrome

The aim of this study was to investigate the validity and reliability of the Upper Extremity Functional Index in patients with carpal tunnel syndrome. This cross-sectional study included 101 patients diagnosed with carpal tunnel syndrome at a university hospital. Patients were administered the Upper Extremity Functional Index, Michigan Hand Outcomes Questionnaire, and Boston Carpal Tunnel Questionnaire surveys. Test-retest reliability, internal consistency, and construct validity of the Upper Extremity Fuctional Index were evaluated.

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Key information

Conditions

Carpal Tunnel Syndrome (CTS) Carpal Tunnel Syndrome Cumulative Trauma Disorders Median Neuropathy Mononeuropathies Nerve Compression Syndromes Nervous System Diseases Neuromuscular Diseases Peripheral Nervous System Diseases Sprains and Strains Upper Extremity Function Wounds and Injuries

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Pamukkale University

Denizli, 20170, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

To be diagnosed with carpal tunnel syndrome, to be a volunteer, and to be between the ages of 18 and 65 years.

Exclusion criteria

no history of other trauma, disease or surgery in the affected limb and difficulty communicating

Treatment and study plan

Questionnaire

Other

The Upper Extremity Functional Index (at the first session and after 2 weeks), the Michigan Hand Outcomes Questionnaire and the Boston Carpal Tunnel Questionnaire were administered to patients using a face-to-face assessment method.

Primary outcomes

Upper Extremity Functional Index

Time frame: The questionnaire was administered at baseline (after diagnosis of carpal tunnel syndrome) and 15 days after the baseline assessment.

It is a 20-item scale scored using a 4-point Likert scale (0 = Extremely difficult/I cannot do it, 4 = I do not experience any difficulty). The patient scores between 0 and 80, and it is recommended that the total score be used in studies. A high score indicates that the patient has good upper extremity function.
Michigan Hand Outcomes Questionnaire

Time frame: The questionnaire was administered at baseline (after diagnosis of carpal tunnel syndrome)

This questionnaire evaluates the functionality of the hand and consists of 63 questions in total. Each question is scored between 1-5 and the score of each section varies between 0-100. High total score indicates high satisfaction.
Boston Carpal Tunnel Questionnaire

Time frame: The questionnaire was administered at baseline (after diagnosis of carpal tunnel syndrome)

It has been developed to assess the severity of symptoms and functional status in patients with carpal tunnel syndrome. The symptom severity scale consists of 11 questions, while the functional status scale consists of 8 questions. Each question is scored between 1 and 5. A higher symptom severity or functional status score indicates worse symptoms or functional impairment.

Sponsors and collaborators

Lead sponsor

Pamukkale University

Other

Registry information

Official study title

Validity and Reliability of the Upper Extremity Functional Index in Patients With Carpal Tunnel Syndrome

Important dates

Study start: 2021
Primary completion: 2022
Study completion: 2022
First posted: Nov 25, 2025
Registry last updated: Nov 25, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed