frameless stereotaxy
Pronunciation: STAIR-ee-oh-tak-see
Image-guided surgical navigation system using surface landmarks rather than a fixed stereotactic frame.
Full Definition
Frameless stereotaxy represents an evolution of traditional stereotactic surgery, utilizing advanced computer navigation systems and surface-based registration rather than invasive head frames. This technology allows surgeons to precisely localize targets and navigate during tumor resection using pre-operative imaging merged with real-time surgical positioning. The system tracks surgical instruments in three-dimensional space, providing accuracy comparable to frame-based systems while offering greater patient comfort and surgical flexibility. In neurosurgical oncology, frameless stereotaxy is particularly valuable for tumor biopsies, resections near eloquent brain areas, and placement of therapeutic devices. Editorial staff should understand this represents modern surgical navigation technology.
Usage
Usage note: Hyphenate as shown. Distinguish from stereotactic radiosurgery, which is a radiation treatment.
In Context
- "Frameless stereotaxy was used to precisely target the deep-seated lesion for biopsy." — Operative technique description
- "The tumor resection was performed using frameless stereotaxy with real-time navigation feedback." — Surgical procedure note