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Completed

NCT Number: NCT03072420

Characterization of Fingertips Using MRI Images (FINGERS-COMPRESSION)

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).

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Key information

Conditions

Healthy

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

IFSTTAR

Bron, 69675, France

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • 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

Exclusion criteria

  • 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, …)

Treatment and study plan

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.

Primary outcomes

  1. Average fingertip deflection under compression

    Time frame: Day 1

    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.

Secondary outcomes

  1. Average fingertip dimensions

    Time frame: Day 1

    In order to develop realistic biomechanical models of the fingers allowing the simulation of the grip, an essential step will be the experimental mechanical characterization of the distal phalanges.

Sponsors and collaborators

Lead sponsor

Hospices Civils de Lyon

Other

Registry information

Official study title

Characterization of Fingertips Using MRI Images : Development of Mechanically Faithful Models Dedicated to Manipulation.

Important dates

Study start
2015
Primary completion
2015
Study completion
2015
First posted
Mar 7, 2017
Registry last updated
Sep 3, 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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