caa a22 4500 47710858X CHVBK 20180405111602.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF01411352 doi (NATIONALLICENCE)springer-10.1007/BF01411352 Lee T. Department of Neurosurgery, Chang Gung Medical College and Chang Gung Memorial Hospital, Kaohsiung Medical Centre, Kaohsiung, Taiwan, Republic of China aut Transpedicular reduction and stabilization for postlaminectomy lumbar instability [Elektronische Daten] [T. Lee] Summary: This study retrospectively reviewed the outcomes of 17 patients with postlaminectomy lumbar instability treated by transpedicular reduction and stabilization. The criteria of instability were defined strictly by both the clinical symptom of "instability catch” and the radiological findings that fulfilled Nachemson's criteria. Low back pain and/or sciatica that interfered largely with the patients' work or quality of life were the indications for this treatrment. All the operations were performed by one surgeon with the same spinal instrumentation system — "AO internal fixator”. The follow-up period was between 16 and 36 months (mean 24 months). Face to face questionnaire revealed that this treatment modality is encouraging. Fourteen patients (82%) had complete or nearly complete relief from all the pre-operative symptoms. Two (12%) had partial relief of the symptoms that required a subsequent discectomy or wider laminectomy. Only one case (6%) with osteoporosis remained unchanged after the operation. On the follow-up radiographs, sixteen patients (94%) showed good alignment and solid arthrodesis of the treated motion segment. These radiological findings correlated quite well with the absence of the clinical symptom of "instability catch”. A common, but acceptable, complication found in this series was a variable degree of low back stiffness secondary to the instrumentation. Fracture of the screw was found in one patient and pull out of the screw was found in another patient. However, they did not elicit detectable symptoms. Osteoporosis, concomitant disc herniation and persistent spinal stenosis at/or adjacent to the operated level were the three main factors that may contribute to unsatisfactory results secondary to this treatment. These problems remain to be resolved in thp future. Springer-Verlag, 1996 Instability catch nationallicence postlaminectomy lumbar instability nationallicence spinal instrumentation nationallicence transpedicular reduction and stabilization nationallicence Acta Neurochirurgica Springer-Verlag 138/2(1996-02-01), 139-145 0001-6268 138:2<139 1996 138 701 https://doi.org/10.1007/BF01411352 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01411352 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Lee T. Department of Neurosurgery, Chang Gung Medical College and Chang Gung Memorial Hospital, Kaohsiung Medical Centre, Kaohsiung, Taiwan, Republic of China aut NATIONALLICENCE 773 0- Acta Neurochirurgica Springer-Verlag 138/2(1996-02-01), 139-145 0001-6268 138:2<139 1996 138 701 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer