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Neurocirugía

versión impresa ISSN 1130-1473

Resumen

GOMEZ DE LA RIVA, A. et al. Causes of reoperations in patients with lumbar spinal stenosis treated with instrumentations. Neurocirugía [online]. 2006, vol.17, n.3, pp.232-239. ISSN 1130-1473.

Objective. In present study we analyzes the causes leading to reoperation patients treated for lumbar spinal stenosis with laminectomy and lumbar instrumentation. Material and methods. 74 patients operated between January of 1996 and December of 2000 with a minimum 4 year follow-up were seleted for the study. Results. 16 patients (21 1%) underwent a new surgical intervention. The main cause for reoperation was stenosis of the adjacent level superiorly to the instrumentation (in 50%). Other causes were radicular fibrosis, persistence of stenosis after the surgery, neuropatic pain, failure of the instrumentation system, transpedicular screws misplacement and break of screws. Conclusions. Complications related with the initial surgical procedure are low, as half of the reoperations were due to stenosis of the segment superior to the fixation.

Palabras clave : Lumbar spinal stenosis; Instrumentation; Reoperation; Adjacent level.

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