[Combined stereotaxic surgery (methodologic remarks)].

The experience in stereotaxic operations performed in two neurosurgical institutions (Madras, India, and Bratislava, CSSR) indicated that an important part of them were combined interventions. From a methodological point of view the stereotaxic operations can be classified as one- and multi-stage, symmetrical, asymmetrical and unilateral procedures. A stereotaxic intervention differs from the traditional concept of an operation that is expected to lead to a recovery after a single procedure. Stereotaxic treatment, as a rule, comprises a succession of such interventions that form the strategy of the whole therapy.