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A Mouse Model of Ankle-Subtalar Complex Joint Instability
Published on: October 28, 2022
Mechanical and sensorimotor implications with ankle osteoarthritis.
Tricia J Hubbard1, Charlie Hicks-Little, Mitchell Cordova
1Department of Kinesiology, University of North Carolina Charlotte, Charlotte, NC 28223, USA. thubbar1@uncc.edu
Archives of Physical Medicine and Rehabilitation
|July 7, 2009
Summary
Ankle osteoarthritis (OA) leads to reduced joint stability, impaired muscle strength, and poorer balance. These findings highlight the need for targeted rehabilitation programs to improve function in OA patients.
Area of Science:
- Biomechanics
- Orthopedics
- Rehabilitation Science
Background:
- Ankle osteoarthritis (OA) is a degenerative joint disease impacting mobility and quality of life.
- Understanding the mechanical and sensorimotor adaptations in ankle OA is crucial for effective management.
Purpose of the Study:
- To investigate the mechanical and sensorimotor changes associated with ankle osteoarthritis.
- To compare these adaptations between individuals with ankle OA and healthy controls.
Main Methods:
- A case-control study design was employed in a biodynamics research laboratory.
- Participants included individuals with ankle OA (n=8) matched to healthy controls (n=8).
- Assessments included joint stability via arthrometer, static balance on a force platform, isometric strength, and functional status using the Foot and Ankle Disability Index.
Main Results:
- Ankle OA patients exhibited increased mechanical stiffness and reduced isometric strength compared to controls.
- Significant impairments in postural control, evidenced by increased center of pressure displacement, were observed in the OA group.
- Patients with ankle OA reported significantly lower subjective levels of function.
Conclusions:
- Ankle OA is characterized by joint laxity, impaired postural control, decreased muscle strength, and reduced perceived function.
- These deficits significantly affect joint stability and overall functional capacity.
- Developing specialized rehabilitation and exercise programs is essential to enhance joint stability and function in ankle OA patients.
