Functional Improvement and Fine Dexterity in Thumb Tendon Injuries

February 4, 2026 updated by: UMUT ERASLAN, Pamukkale University

Investigation of the Relationship Between Functional Improvement and Changes in Fine Manual Dexterity in Isolated Thumb Tendon Injuries

Considering the thumb's contribution to fine dexterity and precision grip, this study aims to evaluate fine manual dexterity alongside functional outcomes following isolated thumb tendon injuries, and to examine the relationship between postoperative functional improvement and changes in fine manual dexterity.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Estimated)

52

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients with surgically repaired isolated thumb tendon injuries

Description

Inclusion Criteria:

  • No history of neurological, orthopaedic, rheumatological, metabolic disease or surgery in the relevant extremity

Exclusion Criteria:

  • Comorbid musculoskeletal-neurovascular injuries

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Patients diagnosed with isolated thumb tendon injuries at the hand level, who underwent surgical tre
Other: Questionnaire and Physical Exam
Joint range of motion, fine manual dexterity, reaction time, and grip strength will be assessed, and the Michigan Hand Outcomes Questionnaire will be administered to the patients.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Goniometric measurement
Time Frame: At postoperative 12th and 24th week
Joint mobility will be measured in degrees (°) using a universal goniometer. Active flexion and extension of the Metacarpophalangeal (MCP) and Interphalangeal (IP) joints will be recorded. Higher degrees indicate better joint mobility.
At postoperative 12th and 24th week
Gross and fine grip strength
Time Frame: At postoperative 12th and 24th week
Gross grip strength will be measured in kilograms (kg) using a Jamar Hand Dynamometer. Fine grip strength will be measured in kilograms (kg) using a Jamar Pinch gauge. Key pinch, tip-to-tip pinch, tripod pinch and pulp-to-pulp pinch strengths will be assessed. Patients will perform three maximum effort trials, and the mean value will be recorded. Higher values indicate greater strength.
At postoperative 12th and 24th week
Michigan Hand Outcomes Questionnaire
Time Frame: At postoperative 12th and 24th week
he questionnaire covers 6 domains: overall hand function, activities of daily living, pain, work performance, appearance, and satisfaction. Total scores range from 0 to 100. For the pain domain, higher scores indicate more pain; for all other domains, higher scores indicate better hand function.
At postoperative 12th and 24th week
The O'Connor Finger Dexterity Test
Time Frame: At postoperative 12th and 24th week
The unit of measure is the time in seconds required to complete the placement of pins in the board. Lower time values indicate better fine motor skill and manual dexterity.
At postoperative 12th and 24th week
The Nelson Hand Reaction Test
Time Frame: At postoperative 12th and 24th week
The participant's reaction is measured by the distance the ruler falls before being caught measured in centimeters.Lower values (shorter distance) indicate faster reaction speed and better neuromuscular coordination.
At postoperative 12th and 24th week

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Pamukkale University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • Starr HM, Snoddy M, Hammond KE, Seiler JG. Flexor tendon repair rehabilitation protocols: a systematic review. J Hand Surg Am. 2013;38(9):1712-7.e14.
  • Caron Y. The real role of thumb in the overall function of hand. Sci Insights. 2025;47(3):1963-6.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

February 26, 2026

Primary Completion (Estimated)

March 1, 2027

Study Completion (Estimated)

March 1, 2027

Study Registration Dates

First Submitted

January 28, 2026

First Submitted That Met QC Criteria

January 28, 2026

First Posted (Actual)

February 5, 2026

Study Record Updates

Last Update Posted (Actual)

February 6, 2026

Last Update Submitted That Met QC Criteria

February 4, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • E-60116787-020-808746

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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