Table 2 Five-year preservation probability and median preservation expectancy
Factor | 5-year preservation probability (%) | Median preservation expectancy (years) |
|---|---|---|
Severe intermittent claudication | 38.9 | 4.1 |
Mild intermittent claudication | 81.1 | Over 10 |
Cauda equina and mixed type of LSS | 52.4 | 5.8 |
Radicular type of LSS | 76.9 | 9.5 |
Muscle weakness | 63.6 | 5.8 |
No muscle weakness | 71.1 | Over 10 |
Block on myelography | 60.0 | 5.8 |
No block on myelography | 74.3 | 9.5 |