Finger Individuation Training With a Training Device Versus Conventional Rehabilitation for Writer's Cramp

Dystonic Disorders Clinical Trial

— FIDEX  

Official title:

Effectiveness Study of Finger Individuation Training by Finger Force Manipulandum (FFM) Compared to Conventional Rehabilitation for Patients With Writer's Cramp

Clinical Trial Details — Status: Terminated

Administrative data

• NCT number: NCT02882334
• Other study ID #: SSA_2016_15
• Status: Terminated
• Phase: N/A
• Start date: November 8, 2016
• Est. completion date: December 2020

Study information

• Verified date: July 2021
• Source: Fondation Ophtalmologique Adolphe de Rothschild
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Writer's cramp (WC) is a focal dystonia characterized by abnormal movements and postures during writing. Limited finger independence during writing manifests as difficulty suppressing unwanted activations of neighbouring non task-relevant fingers. WC patients also have difficulty in fine control of grip force. However, some previous studies indicate positive effects of individual finger movement training in WC although these studies lacked enhanced visual feedback of activations in 'stationary' fingers. The investigators have recently developed the Finger Force Manipulandum which quantifies the forces applied by the fingers in different tasks. This method is sensitive for detection and quantification of small unwanted contractions in non-active ('stationary') fingers. Forces in 'stationary' fingers can be displayed on-line providing enhanced feedback on independence of finger movements. The aim of this study is to test the effectiveness of finger individuation training using the FFM to improve symptoms in WC patients.

Recruitment information / eligibility

• Status: Terminated
• Enrollment: 26
• Est. completion date: December 2020
• Est. primary completion date: December 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 70 Years

Eligibility

Inclusion Criteria:

• writer's cramp (diagnostic confirmed by a neurologist specialized in movement disorders

• handwriting speed < 140 letters per minute

• simple or complex writer's cramp

• scholarship in French language

• absence of treatment by botulinum neurotoxin, or last injection > 3 months

• age > 18 and < 71 years

• informed consent

• medical insurance coverage

Exclusion Criteria:

• writer's cramp with no impact on writing

• writing tremor

• other neurological disease with effect on writing

• pain or traumatism of the limb used for writing, requiring medical or surgical treatment in the last preceding months

• participation in another research with a potential impact on evaluation criteria

• pregnant or breast feeding patient

• patient under judiciary protection

Related Conditions & MeSH terms

• Dystonia
• Dystonic Disorders

Intervention

Device:
• Finger Force Manipulandum

Other:
• Conventional physiotherapy

Locations

Country	Name	City	State
France	Fondation Ophtalmologique A. de Rothschild	Paris

Sponsors (2)

Lead Sponsor	Collaborator
Fondation Ophtalmologique Adolphe de Rothschild	Foundation Jacques and Gloria Gossweiler

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	change in writing speed after rehabilitation	number of letters correctly copied in 60 seconds	Change from baseline writing speed at week 8