Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
Pediatric spinal arachnoid cysts with compressive myelopathy: single-center experience and update on surgical management.
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Parapati Vamshi Reddy, Divakar Ganesh, Hv Easwer, Matham Gowtham, Kesavapisharady Krishnakumar, Stanley Antony
Аннотация
PURPOSE: This study describes the surgical outcome of pediatric primary spinal arachnoid cysts (SACs) presenting with compressive myelopathy and gives an update on the classification and management of these rare lesions.
METHODS: We performed a single-center retrospective analysis of pediatric patients operated for primary spinal arachnoid cysts. The clinical and radiologic profiles and surgical outcomes of these children were analyzed. Subgroup analysis was done in the laminoplasty vs laminectomy groups to see for the development of spinal deformity.
RESULTS: There were 10 males and seven females with a mean age of 10.4 years (range:6-14 years). The cysts extended to an average of 5.2 levels (range:2-8). They were extradural in seven (41%) and intradural in 10 (59%). Six intradural and four extradural cysts underwent laminectomy (n = 10) while four intradural and three extradural cysts underwent laminoplasty (n = 7). Although three out of 10 cases in the laminectomy group and none in the laminoplasty group had post-operative spinal deformity, this result was not statistically significant (p = 0.110). There was a moderate negative correlation between post-operative cord occupancy ratio (COR) and post-operative McCormick grade (Pearson correlation coefficient = -0.453, p = 0.068), suggesting that higher CORs are associated with lower McCormick grades.
CONCLUSION: Symptomatic pediatric primary spinal arachnoid cysts are safely and effectively managed by marsupialization or microsurgical excision. Considering the growing age group, laminoplasty rather than laminectomy should be the standard surgical procedure to prevent late postoperative spinal deformity. Clinically significant recurrences are rare in the setting of adequate cord expansion and restored subarachnoid CSF flow following surgery.
METHODS: We performed a single-center retrospective analysis of pediatric patients operated for primary spinal arachnoid cysts. The clinical and radiologic profiles and surgical outcomes of these children were analyzed. Subgroup analysis was done in the laminoplasty vs laminectomy groups to see for the development of spinal deformity.
RESULTS: There were 10 males and seven females with a mean age of 10.4 years (range:6-14 years). The cysts extended to an average of 5.2 levels (range:2-8). They were extradural in seven (41%) and intradural in 10 (59%). Six intradural and four extradural cysts underwent laminectomy (n = 10) while four intradural and three extradural cysts underwent laminoplasty (n = 7). Although three out of 10 cases in the laminectomy group and none in the laminoplasty group had post-operative spinal deformity, this result was not statistically significant (p = 0.110). There was a moderate negative correlation between post-operative cord occupancy ratio (COR) and post-operative McCormick grade (Pearson correlation coefficient = -0.453, p = 0.068), suggesting that higher CORs are associated with lower McCormick grades.
CONCLUSION: Symptomatic pediatric primary spinal arachnoid cysts are safely and effectively managed by marsupialization or microsurgical excision. Considering the growing age group, laminoplasty rather than laminectomy should be the standard surgical procedure to prevent late postoperative spinal deformity. Clinically significant recurrences are rare in the setting of adequate cord expansion and restored subarachnoid CSF flow following surgery.