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I am writing in response to the ARCHIVES article by Okun et al¹ concerning complications of gamma knife surgery for Parkinson disease and also to the accompanying editorial by Dr Jankovic.² (Gamma Knife is a registered trademark of Elekta Inc, Atlanta, Ga.)

In my view the article does a disservice to patients as well as physicians, neurologists, and neurosurgeons who care for patients with movement disorders. The fact that complications may occur with any invasive surgical procedure for the treatment of movement disorders has been known for many years. That complications can arise after functional lesioning procedures used in Gamma Knife radiosurgery has been reported by both our group and others.^3-7 To my knowledge, Okun and colleagues have no personal experience with functional lesioning using radiosurgical methods for the treatment of movement disorders. Regarding the complications found by different investigators who actually performed the procedures, the case reports are not . . . [Full Text of this Article]

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Radiosurgery Can Achieve Precision Needed for Functional Neurosurgery--Reply
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