Table 2. Outcomes after PFD for Chiari malformation with associated syringomyelia.
| Author (y) | Worsening | Recurrent/residual | Increase of syrinx size | Total |
|---|---|---|---|---|
| n/N (%) | n/N (%) | n/N (%) | ||
| Zhang et al (2011) | 5/132 (3.8) | 5/132 (3.8) | ||
| Alfieri and Pinna (2012) | 17/69 (15.6) | 17/69 (15.6) | ||
| Batzdorf et al (2013) | 1/177 (0.6) | 1/177 (0.6) | ||
| Depreitere et al (2000) | 0/22 (0) | 0/22 (0) | ||
| Ellenbogen et al (2000) | 1/29 (3.4) | 1/29 (3.4) | ||
| Fischer (1995) | 0/12 (0) | 0/12 (0) | ||
| Garcia-Uria (1981) | 6/27 (22.2) | 6/27 (22.2) | ||
| Mueller and Oro' (2005) | 11/112 (9.8) | 11/112 (9.8) | ||
| Noudel et al (2011) | 0/11 (0) | 0/11 (0) | ||
| Silva et al (2010) | 0/10 (0) | 0/10 (0) | ||
| Vaquero et al (1990) | 0/15 (0) | 0/15 (0) | ||
| Combined | 39/383 (10.2) | 1/177 (0.6) | 1/56 (1.8) | 41/616 (6.7) |
Abbreviation: PFD, posterior fossa decompression.