PURPOSE OF THE STUDY The surgical treatment of osteoporotic vertebral body fractures is associated with many complications. Vertebroplasty (VP) and kyphoplasty (KP) are minimally invasive procedures allowing us to strengthen the vertebral body and thus stabilize it. The aim of this non-randomized study is to evaluate a group of patients treated by VP and KP procedures and to discuss related risks. MATERIAL Between September 2005 and October 2007, a total of 32 patients (37 vertebrae) were treated by the VP and KP techniques. Vertebroplasty was used in 21 and kyphoplasty in 11 patients. In this initial group, four patients were excluded from evaluation because of a tumour aetiology of the fracture. The remaining 28 patients who had an osteoporotic vertebral body fracture verified by CT scan findings were followed up and evaluated. METHODS The evaluation was based on modified Oswestry disability index (ODI) and visual analogue scale (VAS) scores recorded at 6 weeks, 3 and 6 months and 1 year postoperatively. Cement leakage detected by X-ray was assessed by means of the classification used by Yeom et al. and, at the same time, the occurrence of adjacent vertebral fracture, if any, was detected by 1 year after surgery. RESULTS Radiographic cement leakage was found in eight patients (21.6%), with clinical manifestation in two (5.4%). One had an incomplete motor lesion due to cement leakage into the spinal column, and the other had pulmonary embolism due to cement leakage into the mediastinum. The whole group showed marked improvement in clinical condition, as assessed by the ODI. When expressed as per cent, the average ODI was 57% pre- and 15.7 % post-operatively. All patients reported pain relief in the affected spine. The average VAS score of 8.1 pre-operatively decreased to an average of 2.6 post-operatively. There were no radiographic findings of adjacent vertebral body fracture. DISCUSSION Vertebroplasty and kyphoplasty are currently used to treat osteoporotic vertebral fracture. Their advantages include an immediate stabilization of the vertebra by cement solidification, possibility of percutaneous application under local anaesthesia, and early patient mobilization without any external fixation. However, when evaluating these techniques, safety of the surgical procedure should be taken into consideration. The most frequent risk is cement leakage. CONCLUSIONS Vertebroplasty and kyphoplasty can, under strict adherence to the operative protocol, be an effective approach to the treatment of osteoporotic vertebral body fracture. It permits early mobilization of the patient without the necessity of external fixation. Key words: vertebroplasty, kyphoplasty, osteoporotic spine fracture, osteoporosis.

• MeSH
• fraktury páteře etiologie   terapie   MeSH
• fraktury spontánní etiologie   terapie   MeSH
• kompresivní fraktury etiologie   terapie   MeSH
• lidé MeSH
• nemoci páteře komplikace   MeSH
• osteoporóza komplikace   MeSH
• senioři MeSH
• vertebroplastika * metody   MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• anglický abstrakt MeSH
• časopisecké články MeSH

INTRODUCTION: Vertebroplasty and balloon kyphoplasty have shown to improve pain and functional outcome in cases with symptomatic vertebral fractures. Although restoration of the vertebral body height and kyphosis seemed to be easier with balloon kyphoplasty, it became clear that some of the correction achieved by the balloon is lost once it was deflated. Vertebral body stent was developed to eliminate this phenomenon. To our knowledge this is the first study in describing this technique in clinical settings. MATERIALS AND METHODS: Seventeen patients with 20 fractured vertebral bodies were included. All fractures were Type A1.3 or A3.1 (incomplete burst). Information about pain (visual analogue scale-VAS) and function (Oswestry disability index-ODI) and vertebral body deformity (vertebral angle-VA) was recorded in a prospective way at regular intervals. Patients were classified into osteoporotic group (7 patients) and traumatic groups (10 patients, younger than 60 years). RESULTS: There were 6 male and 11 female patients with mean age of 58.1 years (31-88 years). Mean follow up was 12 months. The preoperative pain level showed a mean VAS score of 8.9 in osteoporotic group and 9.7 in traumatic group. Postoperatively, in osteoporotic group, mean VAS was 4.8 at 6 weeks, 4.0 at 6 months and 2.5 at 12 months compared with traumatic fracture group where it was 2.7 at 6 weeks, 2.2 at 6 months and 1.6 at 12 months. Mean ODI in osteoporotic group was 41.7% (14-58%) and in traumatic group it was 20.4% (6-33%). Mean vertebral body angle prior to surgery in osteoporotic group was 9.7 whilst postoperatively it was 5.2°; so the mean correction achieved was 4.5°. In traumatic group preoperative VA was 13° whilst postoperatively it was 5.7°; therefore the mean correction achieved was 7.3°. None of the patients lost reduction at their last follow up. CONCLUSION: Vertebral body stenting leads to satisfactory improvement in pain, function and kyphosis correction in the treatment of osteoporotic and traumatic fractures. Anterior spinal column, especially the fragmented superior endplate is nicely reconstructed by the stent provided it is inserted accurately. With addition of posterior transpedicular instrumentation, indications for this technique may be wider covering some Type B and C fractures with similar vertebral body damage.

• MeSH
• bederní obratle zranění   chirurgie   MeSH
• bolest prevence a kontrola   MeSH
• dospělí MeSH
• fraktury páteře patofyziologie   chirurgie   MeSH
• hrudní obratle zranění   chirurgie   MeSH
• kostní cementy terapeutické užití   MeSH
• kyfoplastika metody   MeSH
• kyfóza chirurgie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• měření bolesti MeSH
• osteoporotické fraktury patofyziologie   chirurgie   MeSH
• polymethylmethakrylát terapeutické užití   MeSH
• posuzování pracovní neschopnosti MeSH
• prospektivní studie MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• stenty * MeSH
• vertebroplastika metody   MeSH
• vnitřní fixace fraktury přístrojové vybavení   metody   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• kostní cementy MeSH
• polymethylmethakrylát MeSH