Abstract:The authors present a retrospective review of 35 patients who underwent selective dorsal rhizotomy between 1990 and 1992. The first 15 patients underwent laminectomy from L1 to the sacrum without replacement of the posterior elements. The subsequent 20 patients had the laminae replaced during wound closure. No patient in either group developed spinal instability or symptomatic deformity. However, 4 patients in the first group (mean follow-up period 35 months) developed significant low-back pain of m… Show more
“…However, the authors would recommend such techniques to preserve the anatomical planes and thus facilitate potential future exposures [52]. In addition, a diminished degree of postoperative pain has been described in children with the use of laminoplasty techniques [53]. …”
The authors have reviewed available data from 7 pediatric patients with intramedullary spinal cord cavernous angioma (ISCCA) reported in the literature, and added from their own series 2 pediatric patients, for a total of 9 patients. This group of pediatric patients’ clinical presentation, course, management and outcome were compared to their adult counterparts as reported in the literature. In contrast to adults, children with symptomatic ISCCA do not show a gender imbalance and the thoracic spinal cord is not predominantly involved. Pediatric patients commonly present with an acute episode and rapid deterioration. A more favorable outcome has been reported in children as compared to adults in the face of relatively similar presenting deficits. As in adults, magnetic resonance imaging (MRI) remains the diagnostic and postoperative test of choice. Complete resection affords the best chance for cure. Symptomatic children with ISCCA characteristically present with an acute deficit and rapid deterioration. MRI of the entire neuraxis is recommended for lesion multiplicity. An attempt at total resection and long-term MRI follow-up are recommended.
“…However, the authors would recommend such techniques to preserve the anatomical planes and thus facilitate potential future exposures [52]. In addition, a diminished degree of postoperative pain has been described in children with the use of laminoplasty techniques [53]. …”
The authors have reviewed available data from 7 pediatric patients with intramedullary spinal cord cavernous angioma (ISCCA) reported in the literature, and added from their own series 2 pediatric patients, for a total of 9 patients. This group of pediatric patients’ clinical presentation, course, management and outcome were compared to their adult counterparts as reported in the literature. In contrast to adults, children with symptomatic ISCCA do not show a gender imbalance and the thoracic spinal cord is not predominantly involved. Pediatric patients commonly present with an acute episode and rapid deterioration. A more favorable outcome has been reported in children as compared to adults in the face of relatively similar presenting deficits. As in adults, magnetic resonance imaging (MRI) remains the diagnostic and postoperative test of choice. Complete resection affords the best chance for cure. Symptomatic children with ISCCA characteristically present with an acute deficit and rapid deterioration. MRI of the entire neuraxis is recommended for lesion multiplicity. An attempt at total resection and long-term MRI follow-up are recommended.
“…If back pain is considered a complication, only if it was severe enough to limit the usual activities of the patient, then 2.7% of the patients in this study had such a complication. Cobb et al [23], after reviewing a small series of SDR, suggested that delayed onset of back pain after SDR may be prevented by replacing the laminae at the end of the procedure. In this study, there were 4 cases of delayed back pain among 9 patients (44%) in whom the laminae were either not replaced or incompletely replaced, compared to 13 of 149 (9%) in whom the laminae were replaced.…”
Selective dorsal rhizotomy (SDR) has been shown to be an effective treatment for the spasticity of cerebral palsy, but few studies have addressed specifically the side effects of the procedure. A retrospective study was performed to determine the frequency and nature of complications in 158 children who had undergone SDR at British Columbia’s Children’s Hospital from 1987 to 1996. Intraoperative, preoperative (immediate postoperative until discharge at approximately 7 days) and postdischarge complications occurred in 3.8, 43.6 and 30% of patients, respectively. The most common intraoperative complication was aspiration pneumonia, which was experienced by 2 patients (1.3%). Perioperatively, sensory changes were found in 8.9% of the children, and transient urinary retention in 4.4%. Complications after discharge included back pain starting more than 6 months after surgery in 10.8%, sensory changes in 13.9%, and neurogenic bladder or bowel problems in 12.7%. Persistent sensory changes occurred in 3.8%, were not important functionally, and tended to occur in patients with the largest amount of dorsal root tissue cut. In 8 patients (5.1%), bladder and/or bowel dysfunction attributed to the SDR was present at the latest follow-up, although in only 2 patients (1.3%) this dysfunction was a definite complication of the rhizotomy. The use of pudendal monitoring and/or cutting less than 50% of the S2 roots may have been associated with a lower incidence of long-term sphincter dysfunction. Data about the nature and frequency of complications may result in further modifications to the SDR procedure, and is critical for counseling about SDR and alternative options available for treatment of the child with spastic cerebral palsy.
“…Even if tumor recurrence or regrowth occurs postoperatively, taking a posterior approach remains as safe and easy as during the first operation because the dura mater is covered by the restored lamina [15][16][17]. Furthermore, other authors feel that osteoplastic laminectomy prevents the musculoskeletal pain observed after laminectomy [18].…”
Objective To describe a technique for C2 lamina reconstruction using locking miniplates for the extirpation of spinal tumors in the craniocervical junction. Summary of background data Many spinal surgery cases in which lamina reconstructions have been performed using non-locking miniplates have been reported. However, there is only one report of the use of locking miniplates for lamina reconstruction in spinal tumor cases. Methods We performed C2 lamina reconstructions using locking miniplates in a patient with a spinal tumor and another with a cystic lesion. The clinical and radiologic features of both cases are reported, and the surgical technique is described. Results A 62-year-old female and a 30-year-old male were diagnosed with meningioma and a neurenteric cyst, respectively, in the craniocervical junction. Extirpation of these lesions was performed in combination with C2 lamina reconstruction and reattachment of the paraspinous muscle to the C2 spinous process. A follow-up examination at 1 year postoperatively demonstrated no significant change in the sagittal alignment of the cervical spine and a good postoperative course in both cases. Bony fusion was detected in both cases, and no implant failure occurred in either case. Conclusions This procedure results in rigid fixation of the reimplanted C2 lamina and helps to restore the paraspinous muscles. For these reasons, it appears to be a useful surgical procedure for spinal tumors requiring C2 laminectomy and does not cause postoperative kyphosis of the cervical spine.
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