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  • Title: Incidence of pulmonary cement embolism after real-time CT fluoroscopy-guided vertebroplasty.
    Author: Potet J, Weber-Donat G, Curis E, Arnaud FX, Thome A, Valbousquet L, Peroux E, Geffroy Y, Bouzad C, Kervella Y, Lahutte M, Ukkola-Pons E, Baccialone J, Teriitehau CA.
    Journal: J Vasc Interv Radiol; 2013 Dec; 24(12):1853-60. PubMed ID: 23958047.
    Abstract:
    PURPOSE: To prospectively evaluate the incidence of pulmonary cement embolism (PCE) after vertebroplasty in procedures performed under real-time computed tomographic (CT) fluoroscopy guidance. MATERIALS AND METHODS: A total of 85 vertebroplasties were performed in 51 consecutive patients (31 women, 20 men; mean age, 71.9 y; range, 48-92 y) in 51 sessions. The needle was inserted with guidance from intermittent single-shot CT scans, and intermittent CT fluoroscopy was used during cement injection only. To reduce the risk of extravertebral or extraosseous leakage, several procedures (cement injection stopping/slowing, needle position changes) were employed. The chest and treated bone were scanned immediately after vertebroplasty. These CT images included the entire thorax as well as the treated vertebrae. RESULTS: No cement emboli were observed on CT after vertebroplasty. After 85 vertebroplasty procedures, 44 extravertebral leaks were detected. Epidural leaks were observed on CT in six treated vertebrae (7%), in 12 cases in the anterior external venous plexus (14.1%), in five in the azygos vein (5.8%), in 19 in the disc space (22%), and in two in the foraminal space (2.3%). On a per-patient basis, the odds of leaks increased with the number of vertebroplasties (P = .05) and the volume of cement used (P = .0412). There was also a higher probability of leak (P < .05) for osteoporotic vertebral compression fractures (67.9%; 95% confidence interval, 47.7%-84.1%) than osteolytic spinal metastases (34.8%; 16.4%-57.3%). CONCLUSIONS: PCE did not occur after vertebroplasty under CT fluoroscopy guidance. Further larger prospective vertebroplasty studies are needed to compare the rates of PCE for CT versus conventional fluoroscopic guidance.
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