Lateral orthogonal approach for depth electrode insertion using the Leksell frame: technical note.

A simple device is described to perform lateral orthogonal approaches using the Leksell stereotactic frame. This device is especially useful for simultaneous bilateral insertion of intracerebral electrodes without the need for attaching the stereotactic arc. It also allows for targeting of far lateral lesions that lie beyond the limits imposed by the arc and is compatible with all recent models of and accessories for the Leksell frame.