Function Following Thumb MP Fusion and IP Fusion

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03661281

Enrollment

Registered

2018-09-07

Start date

2018-02-01

Completion date

2019-06-24

Last updated

2020-02-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis

Brief summary

This study is to determine function following simulated thumb metacarpophalangeal (MP) and thumb interphalangeal (IP) joint fusion. The investigators want to determine the functional limitation created by MP and IP joint fusion. 20-30 volunteers will be fitted for custom molded orthoplast splints immobilizing either the MP or IP joint. The volunteers will then be taken through multiple tests including lateral pinch strength, tip pinch, grip strength, grooved pegboard test time, and Jebson Taylor test. Each patient will be tested without a splint, with their MP joint immobilized and with their IP joint immobilized. The results of this study can be used for patient education before surgery in order to help them make informed decisions as well as manage expectations. It can also serve as a decision aid in pinch restoration in the context of ulnar nerve palsy.

Interventions

DIAGNOSTIC_TESTGrooved pegboard test

Time will be measured and compared between control, MP splint and IP splint

DIAGNOSTIC_TESTJebsen Taylor Hand function test

consists of seven test items, which are felt to represent various hand activities. These test items include: writing a short sentence; turning over 365 inch cards; picking up small objects and placing in a container; stacking checkers; simulated eating; moving empty large cans; and moving weighted large cans.

DIAGNOSTIC_TESTPinch strength

Measured in every splint position using a standard dynamometer

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Yes

Inclusion criteria

* Patient is a healthy volunteer * Patient is willing and able to review and sign a study informed consent form

Exclusion criteria

* Any subject who does not want to voluntarily participate.

Design outcomes

Primary

Measure	Time frame	Description
Jebsen Taylor hand function test	1 Month	This consists of seven test items, which are felt to represent various hand activities. Each activity will be timed.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026