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Functional bracing for distal radioulnar joint instability.
Gary M Millard1, Jeffrey E Budoff, Vibor Paravic
1Department of Orthopedics, Baylor College of Medicine, Houston Veteran's Administration Medical Center, Houston, TX, USA.
The Journal of Hand Surgery
|November 29, 2002
Summary
Functional forearm bracing effectively reduces distal radioulnar joint (DRUJ) instability in a cadaver model. Both commercial and custom braces improved stability, with custom braces showing potential for overcorrection in pronation.
Area of Science:
- Orthopedics
- Biomechanics
- Upper Extremity Surgery
Background:
- Distal radioulnar joint (DRUJ) instability presents significant surgical challenges.
- Conservative management options for DRUJ instability are limited.
- Understanding biomechanical interventions is crucial for effective treatment.
Purpose of the Study:
- To evaluate the efficacy of functional forearm bracing in stabilizing the DRUJ.
- To compare the effects of prefabricated and custom-made braces on DRUJ stability.
- To assess the impact of bracing on forearm and wrist range of motion.
Main Methods:
- A cadaveric upper extremity model was utilized.
- Sequential destabilization of the DRUJ was performed.
- Computed tomography (CT) assessed joint translation with prefabricated and custom braces in pronation and supination.
Main Results:
- Both brace types significantly reduced DRUJ translation in full pronation and supination.
- Custom-made braces demonstrated a tendency for overreduction in the pronated position.
- Bracing appeared to maintain wrist and forearm mobility.
Conclusions:
- Functional forearm bracing is a promising non-operative approach for DRUJ instability.
- Bracing can effectively reduce DRUJ translation without excessive motion restriction.
- Further clinical studies are warranted to validate these findings in patients.