Spinal instability secondary to metastatic cancer

Area of Science:

• Oncology
• Neurosurgery
• Orthopedic Surgery

Background:

• Metastatic cancer frequently causes spinal instability and severe pain.
• Spinal instability can lead to neurological deficits, including spinal cord or cauda equina compression.
• Effective management is crucial for pain relief and functional recovery in these patients.

Purpose of the Study:

• To evaluate the efficacy of spinal stabilization in managing severe pain and instability secondary to metastatic cancer.
• To assess the impact of surgical decompression on neurological recovery in patients with spinal cord or cauda equina compression.
• To determine the overall outcomes of spinal stabilization procedures in a cohort of cancer patients.

Main Methods:

• Fifty-four patients with severe pain from spinal instability due to metastatic cancer underwent 55 spinal stabilization procedures.
• Twenty-eight patients with evidence of spinal cord or cauda equina compression received concurrent decompression.
• Patients with extradural tumors underwent prophylactic decompression during stabilization.

Main Results:

• Complete pain relief was achieved in 49 patients, with partial relief in two; three patients experienced treatment failure.
• Among 28 patients who underwent decompression, 20 showed major recovery of neurological function.
• No patients who received prophylactic decompression developed new signs of cord or cauda equina compression.

Conclusions:

• Segmental spinal stabilization is highly effective for alleviating pain and restoring mobility in cancer patients with spinal instability.
• Combined anterior and posterior stabilization may be necessary for select cases.
• Postoperative radiotherapy and appropriate systemic cancer treatment (endocrine or chemotherapy) are recommended adjuncts.