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Comparison between the outcomes of first-time and second-time surgeries. FMD = foramen magnum decompression; QOL = quality of life; CCOS = Chicago Chiari Outcome Scale [15,16].
| Improved QOL (CCOS 13–16) |
Unchanged QOL (CCOS 10–12) |
Worsened/Dead QOL (CCOS 4–9) |
||
|---|---|---|---|---|
| First-time FMD 98 pts |
87 (88.7%) |
10 (10.2%) |
1 (1.1%) |
p = 0.004 (significant) |
| Redo Surgery 34 pts |
20 (58.8%) |
11 (32.4%) |
3 (8.8%) |
