|
| Authors year | Pts. number | Pathology | Surgical approach | Outcome | Morbidity
Mortality Complications |
|
| Krieger et al. [27], 1999 | 31 | CM-I, CM-I + hydro-syringomyelia | Occipital craniectomy, C1 posterior arch removal, and duraplasty | 88% improvement in pts. with syrinx
3 patients required also a shunt | 26% headaches
16% nausea
No mortality |
|
| Zérah [28], 1999 | 188 | CM-I + hydro-syringomyelia | Posterior fossa decompression | 95% improvement/ stabilization of symptoms | N/A |
|
| Lazarref and Valencia-Mayoral [29], 1990 | N/A | CM-I + hydro-syringomyelia | PFD + cervical laminectomy if the ventricular shunt is patent | 88% symptom remission | N/A |
|
| Yundt et al. [30], 1996 | 3 | CM-I | Occipital craniectomy, C1 posterior arch removal, and duraplasty | 100% improvement | N/A |
|
| Isu et al. [31], 1993 | 7 | CM-I + hydro-syringomyelia | Occipital craniectomy and duraplasty | 6/7 improvement, 5/7 immediate syrinx decrease | N/A |
|
| Genitori et al. [32], 2000 | 53 | CM-I, CM-I + hydro-syringomyelia | Occipital craniectomy, C1 posterior arch removal, and duraplasty | 100% improvement in brainstem compression, 94.4% syringomyelia improvement, 97.2% overall improvement | 2/34 pts. required second surgery.
No mortality |
|
| Alden et al. [33], 2001 | 21 | CM-I, CM-I + hydro-syringomyelia | suboccipital craniectomy + cervical laminectomy in all pts
(i) durotomy + duraplasty: 4
(ii) resection of cerebellar tonsils + lysis of abhesions + duraplasty: 17 | 67% symptom resolution, 29% improvement, 4% no improvement | N/A |
|
| Parker et al. [34], 2011 | 114 | CM-I | Occipital craniectomy, C1 posterior arch removal, and duraplasty with or without tissue sealant (15 cadaveric pericardium-12 Durepair-87 endura) | N/A | Graft-type and Cx rates: 26,7% cadaveric pericardium: 26.7% durepair: 41.7 % endura: 17.2%
Reoperation rates: cadaveric pericardium: 13% durepair: 25% endura: 8.1% Complications rates for tissue sealants: no sealant: 14,8% tisseel: 18,7% duraseal: 50%
Combined complication rate for durepair and DuraSeal: 56%
Cumulative Cx rate: 21.1% |
|
| Mottolese et al. [8], 2011 | 82 | CM-I, CM-I + hydro-syringomyelia, kyphosis/scoliosis | (i) Occipital craniectomy, C1 posterior arch removal, and duraplasty (Group a: 43 pts)
(ii) Occipital craniectomy, C1 posterior arch removal, and duraplasty with Gore-Tex dural patch (Group b: 39 pts) | Group a: 70% improvement
Group b: 89% improvement | Group a: 18% complication rate Group b: 20,5% complication rate.
No mortality |
|
| Valentini et al. [35], 2011 | 99 | CM-I, CM-I + craniosynostosis, CM-I + hydrosyringomyelia | Craniovertebral decompression (Group a: 7 pts), craniovertebral decompression with duraplasty combined with tonsillar coagulation (Group b: 44 pts) | 91.5% syrinx decrease, 78% overall symptom improvement | No mortality
14% reoperation for CSF leakage, 6.8% oculomotor n. dysfunction, 2.8% venous thrombosis |
|
| Sindou et al. [36], 2002 | 44 | CM-I, CM-I + hydro-syringomyelia | Craniocervical decompression + far lateral foramen magnum opening + duraplasty with arachnoid preservation. | Improvement based on KPS, improvement of syrinx in 60%, stabilization of syrinx in 40% | 4.5% CSF leakage,
2.3% laryngeal edema,
2.3% pneumonia, 11.4% wound infections
No mortality |
|
| Hoffman et al. [37], 1987 | 47 | CM-I,
acquired CM-I | 31 pts posterior fossa decompression and plugging of the obex, 5 pts posterior fossa decompression, 9 pts shunting, 2 pts decompression with shunting | 70% improvement in pts undergoing obex plugging | No mortality |
|
| Hida et al. [38], 1995 | 70 | CM-I, CM-I + hydro-syringomyelia | 33 pts foramen magnum decompression (Group a), 37 pts shunting (Group b) | Group a: 94% reduced size of syrinx, 82% improvement
Group b: 100% syrinx reduction, 97% improvement | N/A |
|
| Eule et al. [39], 2002 | 25 | CM-I, CM-I + Kyphosis/Scoliosis | Decompression with or without shunt | Early decompression resulted in improvement or stabilization of scoliosis in 5 cases | N/A |
|
| Payner et al. [40], 1994 | 10 | Acquired CM-I | 2 pts conversion to ventriculoperitoneal shunt, 2 pts posterior fossa decompression | 100% symptom improvement | N/A |
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