Surgical Approaches & Techniques
The choice of surgical technique is dictated by the tumor's size, location (relative to the dura), and the potential for spinal instability after removal.
- 1
Laminectomy: The removal of the rear lamina to provide a wide "window" into the spinal canal for decompression and tumor access.
- 2
En Bloc Resection: A surgical tour-de-force aimed at removing the tumor in one single, undisturbed piece to prevent the spread of cancer cells.
- 3
MIS Resection: Minimally Invasive Surgery using tubular retractors and endoscopes to remove smaller or less complex growths with minimal muscle disruption.
- 4
Stabilization: If tumor removal compromises structural integrity, pedicle screws and rods are placed to fuse and support the spine.
In cases of primary malignant tumors, the goal is often curative through "En Bloc" resection. For metastatic tumors, the primary focus shifts to decompression to save walking ability and reduce pain.
Advanced Technology in the OR
Intraoperative Neuromonitoring provides a "live feed" of nerve health as the surgeon works near the cord.
GPS-like 3D guidance systems ensure high-precision placement of hardware and exact tumor targeting.
High-power operative microscopes allow for the dissection of tumors entangled with sensitive nerve roots.
These tools significantly reduce the risk of permanent neurological deficit by providing surgeons with sub-millimeter precision during the resection.
Recovery & Major Risks
| Milestone | What to Expect |
|---|---|
| Days 1-5 | Inpatient hospital stay. Early walking (mobilization) to prevent blood clots. |
| Weeks 1-4 | Initial wound healing. Avoidance of heavy lifting and intense activity. |
| Months 3-12 | Neurological recovery period. Nerve regeneration is slow and may require PT. |
| Follow-up | Serial MRI scans to monitor for recurrence and ensure structural stability. |
Complications can include infection, cerebrospinal fluid (CSF) leaks, or new-onset numbness/weakness. In cancerous cases, radiation is often used post-operatively to target microscopic cells.
Anatomical Classifications
The complexity of the surgery is often defined by where the tumor sits relative to the spinal cord:
Extradural: Outside the dura (lining of the cord). Most common, often metastatic from other organs.
Intradural-Extramedullary: Inside the dura, but outside the spinal cord tissue (e.g., Meningiomas).
Intramedullary: Growing *inside* the spinal cord itself. These are the most technically challenging resections.
