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Stand-Alone Kyphoplasty In Recent Thoracolumbar Split Fractures: A Series Of 36 Patients Reviewed At 19months – Balloon Kyphoplasty

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The article discusses the rate of pseudarthrosis (bone union problems) after stand-alone percutaneous kyphoplasty in thoracolumbar spine fractures with a split-type of injury. The study included 36 patients with posttraumatic monosegmental thoracolumbar vertebral fractures, and the patients were treated with percutaneous kyphoplasty and PMMA bone cement. The assessment included clinical and radiographic criteria, and the results showed that 14% of the patients had pseudarthrosis. The study found that the extent of fragment diastasis and the incarceration of adjacent disks were predictive factors for pseudarthrosis. Overall, stand-alone kyphoplasty produced good results for split fractures, but careful preoperative assessment is necessary to prevent pseudarthrosis

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : finest spine hospital in London

Published article

INTRODUCTION: Spinal fractures with a split component present specific bone union problems (pseudarthrosis). The purpose of this study was to assess the rate of pseudarthrosis after stand-alone percutaneous kyphoplasties and analyze clinical and radiographic parameters that are predictive of its efficacy in thoracolumbar spine fractures with a split-type of injury.

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Abstract Introduction: Spinal fractures with a split component present specific bone union problems (pseudarthrosis). The purpose of this study was to assess the rate of pseudarthrosis after stand-alone percutaneous kyphoplasties and analyze clinical and radiographic parameters that are predictive of its efficacy in thoracolumbar spine fractures with a split-type of injury. Hypothesis: Stand-alone kyphoplasty results,

Abstract

Introduction: Spinal fractures with a split component present specific bone union problems (pseudarthrosis). The purpose of this study was to assess the rate of pseudarthrosis after stand-alone percutaneous kyphoplasties and analyze clinical and radiographic parameters that are predictive of its efficacy in thoracolumbar spine fractures with a split-type of injury.

Hypothesis: Stand-alone kyphoplasty results in satisfactory bone union of the treated vertebral body despite the diastasis of fracture fragments.

Materials and methods: A retrospective single-center study of 36 patients with posttraumatic monosegmental thoracolumbar vertebral fractures, that were classified as either Magerl A2 or A3.2, without any neurologic deficits. Patients were treated with percutaneous kyphoplasty and PMMA bone cement. The assessment included both clinical (visual analog pain scale [VAS] and Oswestry disability index) and radiographic (pseudarthrosis, fracture gap, disk incarceration, vertebral height and length, and vertebral and regional kyphosis) criteria.

Results: A total of 36 patients (mean age 58years) were included, with a mean follow-up of 19.1months. Five of these patients (14%) had a pseudarthrosis. The fracture gap was significantly greater in these patients than in those who had bone union preoperatively (+3.94 mm, p<0.001) and at the last follow-up consultation (+9.3 mm, p<0.001). There was an association between the incarceration of adjacent disks located above (p=0.008) and below (p=0.003) the fracture site and the pseudarthrosis. The mean VAS decreased significantly on the first postoperative day (p<0.001) and remained lower than the initial assessment until the last follow-up (p<0.001).

Discussion: Stabilization by stand-alone kyphoplasty produces good clinical and radiographic results for split fractures, provided that the extent of the fragment diastasis has been carefully assessed preoperatively to prevent the risk of pseudarthrosis.

Level of evidence: IV; retrospective.

Keywords: Balloon kyphoplasty (BKP); Intervertebral disk; PMMA bone cement; Vertebral compression fracture (VCF).

The London Spine Unit : finest spine hospital in London

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Stand-alone kyphoplasty in recent thoracolumbar split fractures: A series of 36 patients reviewed at 19months

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Abstract Introduction: Spinal fractures with a split component present specific bone union problems (pseudarthrosis). The purpose of this study was to assess the rate of pseudarthrosis after stand-alone percutaneous kyphoplasties and analyze clinical and radiographic parameters that are predictive of its efficacy in thoracolumbar spine fractures with a split-type of injury. Hypothesis: Stand-alone kyphoplasty results

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