Abstract
Objective. To analyze the clinical efficacy of anterior fusion through a minimally invasive retroperitoneal approach in the treatment of patients with pseudoarthrosis after decompression and stabilization surgery for degenerative spinal stenosis.Material and Methods. Twenty six patients with previously performed decompression and stabilization surgeries for degenerative spinal canal stenosis underwent repeated surgical interventions using anterior/anterolateral fusion due to clinical and radiographic signs of pseudoarthrosis resistant to complex conservative therapy for at least 12 weeks. The outcomes of surgical treatment were analyzed based on the assessment of clinical and radiological characteristics before and after surgery.Results. At a follow-up examination 12 months after surgery, leg pain aggravated after exercise bothered 5 patients (19.2 %). According to CT data, 16 (61.5 %) patients had signs of the formation of grade 1 interbody bone block. In 2 (7.7 %) patients, instability of the fixation system developed and there were no signs of union, which required repeated surgical interventions.Conclusion. Anterior interbody fusion in the treatment of patients with pseudoarthrosis allows safe removal of the preinstalled interbody implant and creation of optimal conditions for the formation of interbody fusion. Despite clinical improvement, significant functional disorders persist in most patients.
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More From: Russian Journal of Spine Surgery (Khirurgiya Pozvonochnika)
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