Characterization of Fingertips Using MRI Images (FINGERS-COMPRESSION)

Healthy Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03072420
• Other study ID #: 69HCL16_0688
• Status: Completed
• Phase: N/A
• First received: February 21, 2017
• Last updated: July 6, 2017
• Start date: July 21, 2015
• Est. completion date: July 24, 2015

Study information

• Verified date: July 2017
• Source: Hospices Civils de Lyon
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 8
• Est. completion date: July 24, 2015
• Est. primary completion date: July 24, 2015
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 65 Years

Eligibility

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, …)

Related Conditions & MeSH terms

• Healthy

Intervention

Other:
• Compression of the fingertip under MRI.
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.

Locations

Country	Name	City	State
France	IFSTTAR	Bron

Sponsors (1)

Lead Sponsor	Collaborator
Hospices Civils de Lyon

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	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	Average fingertip dimensions	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.	Day 1