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Effectiveness of Exercise Relative Motion Orthoses for Limited Finger Joint Motion
Sponsor: Insel Gruppe AG, University Hospital Bern
Summary
This randomized controlled trial investigates the effectiveness of two exercise orthosis designs-the Relative Motion Flexion (RMF) and Relative Motion Extension (RME) orthoses-for improving motion in patients with proximal interphalangeal joint (PIPJ) flexion or extension deficits. A total of 148 adult patients with acute hand injuries and a minimum 10° difference between active and passive PIP joint motion will be enrolled. Participants are stratified by their primary motion deficit and randomized to either the exercise orthosis or placebo orthosis group. The orthosis is worn for 4 weeks, with follow-up assessments at weeks 6 and 8 to evaluate range of motion and patient satisfaction. All participants will continue standard hand therapy throughout the study.
Official title: Effectiveness of Exercise Relative Motion Orthoses for Improving Limited Proximal Phalangeal Joint Motion: A Single-Center, Single-Blinded Randomized Controlled Trial
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
148
Start Date
2025-05
Completion Date
2028-05
Last Updated
2025-05-29
Healthy Volunteers
No
Conditions
Interventions
PIP extension deficit treated with an exercise RMF orthosis
The RM orthoses will be worn between 6-12 hours per day during functional use.
PIP extension deficit treated with a placebo RMF orthosis
The placebo orthosis has the same design as the exercise RM orthoses, but without a difference in the extension or flexion angle, respectively, to the adjacent finger - therefore neutralizing the "quadriga phenomena", which is the effect that makes RM orthoses work.
PIP flexion deficits treated with a placebo RMF orthosis
The placebo orthosis have the same design as the exercise RM orthoses, but without a difference in the extension or flexion angle, respectively, to the adjacent finger - therefore neutralizing the "quadriga phenomena", which is the effect that makes RM orthoses work.
PIP flexion deficits treated with an exercise RME orthosis
The dedicated orthosis wearing time is 6-12 hours per day during functional use.
Locations (1)
University Hospital Bern
Bern, Canton of Bern, Switzerland