Characterization of Fingertips Using MRI Images (FINGERS-COMPRESSION)

NCT03072420 | Completed

• 1 other identifier: 69HCL16_0688
• Study Type: interventional
• Target: 8
• Locations: 1 country
• Sites: 1

Brief Summary

The objectives was to obtain MRI images of the index finger of the subjects without loading and with loadings (normal and shear forces from 1 to 4N).

Conditions

Healthy

Keywords

MRI, fingers compression

Outcome Measures

Primary Outcomes (1)

• Average fingertip deflection under compression

  The different stresses will be: compression of the fingertip by a static loading on the phalanx distal of the index of the subjects; Then also a shear stress in the transverse direction of the finger.

  Day 1

Secondary Outcomes (1)

• Average fingertip dimensions

  Day 1

Study Arms (2)

Group no manual work or activity

EXPERIMENTAL

Subject with an office or student job.

Other: Compression of the fingertip under MRI.

Group manual work

SHAM COMPARATOR

Subject working in a manual or predominantly manual.

Other: Compression of the fingertip under MRI.

Interventions

Compression of the fingertip under MRI. OTHER

Compression of the fingertip by a static loading on the phalanx distal of the index of the subjects; Then also a shear stress in the transverse direction of the finger. The data provided by the MRI images will be geometric information such as the thickness of the skin and its possible variation as a function of the area of the finger, the total thickness of soft tissues in compression as a function of the variation in l The angle between the axis of the phalanx and the plane of contact; Mechanical type information relating to the displacements and reaction forces, to the internal deformations of the different areas of the finger.

Group manual work; Group no manual work or activity

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Active voluntary healthy adult aged 18 to 65, affiliated to a social security scheme
• Stature between 170 and 179cm
• Body mass index (BMI) between 20 and 25
• No previous hand musculoskeletal disorders
• Cognitive level compatible with oral communication, adherence to instructions and understanding of gestures
• Having signed the consent to participate in the study

You may not qualify if:

• the subject presents a neurological or orthopedic disorder ;
• the subject presents a pathology that could disturb the task ;
• the subject has an Magnetic Resonance Imaging (MRI) contraindication (wears a pacemaker, insulin pump, prothesis, etc, has claustrophobia, …)

Sponsors & Collaborators

• Hospices Civils de Lyon: lead

Study Sites (1)

IFSTTAR

Bron, 69675, France

Location

Related Publications (1)

• Dallard J, Merlhiot X, Petitjean N, Duprey S. MRI-based experimentations of fingertip flat compression: Geometrical measurements and finite element inverse simulations to investigate material property parameters. J Biomech. 2018 Jan 23;67:166-171. doi: 10.1016/j.jbiomech.2017.11.024. Epub 2017 Nov 29.

  PMID: 29217092 BACKGROUND

Study Officials

• Georges BARATON, MD

  IFSTTAR

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 21, 2017
• First Posted: March 7, 2017
• Study Start: July 21, 2015
• Primary Completion: July 24, 2015
• Study Completion: July 24, 2015
• Last Updated: September 3, 2025

Record last verified: 2025-08

Data Sharing

• IPD Sharing: Will not share

Locations

FR (1)