Bent knees and tiptoeing: late manifestations of end-stage Parkinson's disease.

@article{Djaldetti2004BentKA,
  title={Bent knees and tiptoeing: late manifestations of end-stage Parkinson's disease.},
  author={Ruth Djaldetti and Mark Andrew Hellmann and Eldad Melamed},
  journal={Movement disorders : official journal of the Movement Disorder Society},
  year={2004},
  volume={19 11},
  pages={1325-8}
}
We describe a unique gait phenomenon of bent knees in 9 patients with idiopathic Parkinson disease (mean age, 73.1 +/- 11.1 years), 3 of whom also manifested tiptoeing. The bent-knee posture appeared only during ambulation; in the recumbent position, full or nearly full extension was possible in all patients. The abnormality emerged after long-standing disease (6-23 years from onset) and failed to respond to dopaminergic treatment. Most of the patients also had bent spine (camptocormia). The… CONTINUE READING

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