الفهرس 
INTRODUCTION AND RATIONALEOnly 14 pages are availabe for public view
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Abstract
-Subthalamotomy, pallidotomy and thalamotomy can effectively improve parkinsonian symptoms. They are considered the best available options for the developing countries which cannot afford costs and programming of deep brain stimulation.
-Subthalamotomy and pallidotomy have near results in treatment of PD. But subthalamotomy has significant better outcomes regarding to body bradykinesia, postural instability and gait disability.
-Both subthalamotomy and pallidotomy are preferable to thalamotomy as they adequately suppress bradykinesia and rigidity in addition to their adequate effect on tremor.
-Subthalamotomy allows levodopa dosage reduction.
-Pallidotomy is advised if the main complain of patient is dyskinesia.
-Thalamotomy can be done in tremor predominant PD only.
-We need a large study to confirm safety of subthalamotomy, pallidotomy and thalamotomy.
-We need another larger study to compare between outcomes of lesioning surgeries and deep brain stimulation in treatment of PD.