Spinal cord compression secondary to prostate carcinoma: treatment and prognosis.

Of 35 patients with prostate carcinoma and suspected spinal cord compression 26 (74%) had myelograms and/or magnetic resonance imaging studies demonstrating epidural spinal cord compression. In 5 of 26 patients (19%) spinal cord compression was the first indication of prostate cancer. All patients were initially treated with radiation, steroids and androgen deprivation therapy. Three patients underwent laminectomy. Of 12 patients (100%) ambulatory at presentation 12 remained ambulatory. Of 12 patients (83%) who were paraparetic at presentation 10 were ambulatory after treatment. However, 2 of these patients subsequently had recurrent compression and became paraplegic. Overall, 7 of 26 patients (27%) had recurrent compression. Of 5 patients who either presented with paraplegia or in whom paraplegia developed secondary to recurrent spinal cord compression 4 remained paraplegic despite treatment. The average survival of these 5 patients after treatment was 3.9 months versus 18 months for the group as a whole. In ambulatory or paraparetic patients radiation, androgen deprivation therapy and steroids are effective palliative therapy. However, patients who present with paraplegia or in whom paraplegia developed secondary to recurrent compression are often not palliated by this combination therapy. Prophylactic radiation of vertebral metastases discovered concurrently with compressive metastases may be valuable in preventing paraplegia.