Surgical treatment of the arachnoid cysts in sacral canal: analysis of 23 cases
- VernacularTitle:骶管内蛛网膜囊肿的外科治疗
- Author:
Huiren TAO
;
Quanping WANG
;
Xinkui LI
- Publication Type:Journal Article
- Keywords:
Sacrococcygeal region;
Arachnoid cysts;
Surgical procedures,operative
- From:
Chinese Journal of Orthopaedics
2001;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the diagnosis and the treatment of the arachnoid cysts in the sacral canal. Methods After decompression laminectomy of the sacral canal, the arachnoid cysts were dealt with in three ways: 13 cases with excision of the most of the cyst wall and suture of redundant wall around the intracystic nerves, 8 cases with the excision of the most of the cyst wall and plugging the communicating hole with a block of muscle, 2 cases with excision of most of the cyst wall and leaving cystic wound unsutured. The clinical results were studied with 30.2 months follow up. The radiological changes including X-ray, CT, CTM and MRI were evaluated as well as their clinical behaviors, pathologies and post operative complications. Results Long T1 and T2 signals of the cysts could be clearly showed in MRI, and the signal density was the same as that of cerebrospinal fluid. Clinical symptoms were caused by compression of sacral nerve. Generally, there were communicating holes between cysts and thecal sacs. There were no statistical differences between the results of the first two surgical methods. The post operative complications included the wound erosion and intracranial infection. Conclusion The cyst seems to arise as a result of congenital defect of the thecal dura. Excision of the most of the cyst wall and plugging the communicating hole with a block of muscle seems to be a reasonable surgical method. No drain tube should be used and a supine position should not be allowed so as to reduce the complications
