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What is the importance of "halo" phenomenon around bone cement following vertebral augmentation for osteoporotic compression fracture?

 K. H. Kim  ;  S. U. Kuh  ;  J. Y. Park  ;  K. S. Kim  ;  D. K. Chin  ;  Y. E. Cho 
 Osteoporosis International, Vol.23(10) : 2559-2565, 2012 
Journal Title
 Osteoporosis International 
Issue Date
We investigated the importance, risk factors, and clinical course of the radiolucent "halo" phenomenon around bone cement following vertebral augmentation for osteoporotic compression fracture. Preoperative osteonecrosis and a lump cement pattern were the most important risk factors for the peri-cement halo phenomenon, and it was associated with vertebral recollapse. INTRODUCTION: We observed a newly developed radiolucent area around the bone cement following vertebral augmentation for osteoporotic compression fractures. Here, we describe the importance of the peri-cement halo phenomenon, as well as any associated risk factors and long-term sequelae. METHODS: In total, 175 patients (202 treated vertebrae) were enrolled in this study. The treated vertebrae were subdivided into two groups: Group A (with halo, n = 32) and Group B (without halo, n = 170), and the groups were compared with respect to multiple preoperative (age, sex, BMD, preoperative osteonecrosis) and perioperative factors (operative approach: vertebroplasty or kyphoplasty; cement distribution pattern; cement leakage; cement volume), and postoperative results (VAS score, recollapse). Logistic regression analysis was used to evaluate the relationship between the incidence of the peri-cement halo and all of the parameters described above. RESULTS: Rates of osteonecrosis were also significantly higher in Group A than in Group B (62.5% vs. 31.2%, p < 0.05), and kyphoplasty (KP) was performed more frequently in Group A (43.8% vs. 17.6%, p < 0.05). Lump cement (93.8% vs. 30.6%, p < 0.05) and recollapse (78.1% vs. 24.7%, p < 0.05) were also more common among individuals in Group A. Logistic regression analysis also showed that preoperative osteonecrosis (OR = 3.679; 95% CI = 1.677-8.073; p = 0.001), KP (OR = 3.630; 95% CI = 1.628-8.095; p = 0.002), lump pattern (OR = 13.870; 95% CI = 2.907-66.188; p = 0.001), and vertebral recollapse (OR = 5.356; 95% CI = 1.897-15.122; p = 0.002) were significantly associated with peri-cement halo.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kuh, Sung Uk(구성욱) ORCID logo https://orcid.org/0000-0003-2566-3209
Kim, Kyung Hyun(김경현)
Kim, Keun Su(김근수) ORCID logo https://orcid.org/0000-0002-3384-5638
Park, Jeong Yoon(박정윤) ORCID logo https://orcid.org/0000-0002-3728-7784
Cho, Yong Eun(조용은) ORCID logo https://orcid.org/0000-0001-9815-2720
Chin, Dong Kyu(진동규) ORCID logo https://orcid.org/0000-0002-9835-9294
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