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Korean Journal of Radiology ; : 420-425, 2008.
Artigo em Inglês | WPRIM | ID: wpr-175500

RESUMO

OBJECTIVE: Vertebral compression fractures (VCFs) are common complications of osteoporosis. The expansion of VCFs with a Sky Bone Expander is a new procedure which improves kyphotic deformities and decreases pain associated with VCFs. The purpose of this study was to investigate the preliminary results for the treatment of painful osteoporotic VCFs with a Sky Bone Expander. MATERIALS AND METHODS: Twenty-six patients with pain-causing VCFs were treated with a Sky Bone Expander. This operation involved the percutaneous insertion of the Sky Bone Expander into a fractured vertebral body transpedicularly. Following the expansion, the Sky Bone Expander was contracted and removed, resulting in a cavity to be filled with bone cement. All fractures were analyzed for improvement in sagittal alignment. Clinical complications, pain relief and ambulation status were evaluated 1 day, 1 week, 1 month, and 3 months after the operation. RESULTS: Twenty-four hours after the operation, all the patients treated experienced some degree of pain relief. In addition, no postoperative neurologic complications were noted. The average operative time was 42.4 +/- 15.5 min per vertebra. Moreover, an average cement volume of 3.5 mL (range, 2.5 +/- 5.0 mL) was injected per vertebra. The average anterior height was 18.4 +/- 5.1 mm preoperatively and 20.5 +/- 5.3 mm postoperatively (p < 0.01). Furthermore, the average midline height was 15.5 +/- 5.2 mm preoperatively and 18.9 +/- 4.0 mm postoperatively (p < 0.01). The Cobb angle improved from 18.5 +/- 8.2 degrees preoperatively to 9.2 +/- 4.0 degrees postoperatively (p < 0.01). The Visual Anabog Scale scores decreased from 7.7 +/- 1.8 points preoperatively to 3.1 +/- 2.0, 2.9 +/- 1.7, 2.6 +/- 1.5 and 2.9 +/- 11.3 after 1 day, 1 week, 1 month and 3 months after the operation, respectively. Cement extrusion was observed in four patients without any neurologic symptoms. CONCLUSION: As a result of this study, we can postulate that the expansion of compressed vetrebra with a Sky Bone Expander is a safe and minimally invasive procedure resulting in the restoration of vertebral body height and the relief of pain associated with VCFs.


Assuntos
Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cimentos Ósseos , Fraturas por Compressão/etiologia , Imageamento por Ressonância Magnética , Osteoporose/complicações , Dor/etiologia , Complicações Pós-Operatórias , Estudos Prospectivos , Radiografia Torácica , Fraturas da Coluna Vertebral/etiologia , Dispositivos para Expansão de Tecidos , Resultado do Tratamento
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