Related Experiment Video
Updated: May 9, 2026

Movement Retraining using Real-time Feedback of Performance
Published on: January 17, 2013
The management of osteoarthritis in movement disorders: a case discussion
Giles H Stafford1, Robin S Howard, Jonathon Lavelle
1Chelsea and Westminster Hospitals Foundation Trust, London, United Kingdom.
Background:
A 37-year-old female with a hyperkinetic movement disorder due to chorea-acanthocytosis developed severe painful degenerative arthritis of her left knee as a consequence of repetitive involuntary flexion and extension dystonic and ballistic movements.
Case Report:
Despite profound limitation in her mobility a total knee replacement was successfully undertaken.
Discussion:
The case emphasizes that patients with progressive neurodegenerative disorders may derive relief or resolution of pain by joint replacement even if mobility does not improve following surgery. A multidisciplinary approach to care is essential.
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