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Table 3 Comparison of surgical approaches and mean survival time among Karnofsky's groups.

From: Comparison of prognostic scores and surgical approaches to treat spinal metastatic tumors: A review of 57 cases

Karnofsky score Surgical approach Mean survival (months)
  Combined Anterolateral Posterior  
80–100 4 15 13 28.2 ± 16.3§
50–70 0 3 19 19.6 ± 12.1* §
10–40 0 0 3 4.7 ± 3.6*
Patients (n) 4 18 35  
  1. *p < 0.05, combined vs. posterior approach (Fisher's exact test)
  2. §p < 0.05, posterior vs. anterolateral approach (Pearson's test)