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Oliveira C, Oliveira FPM, Barata MJ, Teixeira SM, João C, Costa DC. Pixelwise corrected ventilation/perfusion ratios improved detection of mismatched perfusion defects. Rev Esp Med Nucl Imagen Mol 2021; 40:313-314. [PMID: 34425972 DOI: 10.1016/j.remnie.2020.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/19/2020] [Indexed: 11/17/2022]
Affiliation(s)
- C Oliveira
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisbon, Portugal.
| | - F P M Oliveira
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisbon, Portugal
| | - M J Barata
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisbon, Portugal
| | - S M Teixeira
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisbon, Portugal
| | - C João
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisbon, Portugal
| | - D C Costa
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisbon, Portugal
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Risk factor analysis of pulmonary cement embolism during percutaneous vertebroplasty or kyphoplasty for osteoporotic vertebral compression fractures. J Orthop Surg Res 2021; 16:312. [PMID: 33985550 PMCID: PMC8117622 DOI: 10.1186/s13018-021-02472-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/06/2021] [Indexed: 01/19/2023] Open
Abstract
Objective The purpose of this research is to evaluate the risk factors and incidence of pulmonary cement embolism (PCE) during percutaneous vertebroplasty (PVP) or kyphoplasty (PKP) for osteoporotic vertebral compression fractures (OVCFs) based on postoperative computed tomography (CT). Methods A total of 2344 patients who underwent PVP or PKP due to OVCFs in our spine center were analyzed retrospectively. According to the detection of postoperative pulmonary CT, the patients were divided into two groups: pulmonary cement embolism group (PCE group) and non-pulmonary cement embolism group (NPCE group). Demographic data in both groups were compared using the χ2 test for qualitative data and the unpaired t test for quantitative data. Multiple logistic regression analysis was carried out to identify risk factors that were significantly related to the PCE resulting from cement leakage. Results PCE was found in 34 patients (1.9% 34/1782) with pulmonary CT examination after operation. There was no statistically significant difference in the parameters such as age, gender, body mass index (BMI), and cement volume in the two groups. Patients with three or more involved vertebrae had a significantly increased risk to suffer from PCE than those with one involved vertebra (p=0.046 OR 2.412 [95% CI 1.017–5.722]). Patients who suffered thoracic fracture had a significantly increased risk to suffer from PCE than those who suffered thoracolumbar fracture (p=0.001 OR 0.241 [95% CI 0.105–0.550]). And significantly increased PCE risk also was observed in thoracic fracture compared with lumbar fracture patients (p=0.028 OR 0.094 [95% CI 0.114–0.779]). The risk of PCE within 2 weeks after fracture was significantly higher than that after 2 weeks of fracture (p=0.000 OR 0.178 [95% CI 0.074–0.429]). Patients who underwent PVP surgery had a significantly increased PCE risk than those who underwent PKP surgery (p=0.001 OR 0.187 [95% CI 0.069–0.509]). Conclusion The real incidence of PCE is underestimated due to the lack of routine postoperative pulmonary imaging examination. The number of involved vertebrae, fracture location, operation timing, and operation methods are independent risk factors for PCE.
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Oliveira C, Oliveira FPM, Barata MJ, Teixeira SM, João C, Costa DC. Pixelwise corrected ventilation/perfusion ratios improved detection of mismatched perfusion defects. Rev Esp Med Nucl Imagen Mol 2021. [PMID: 33926851 DOI: 10.1016/j.remn.2020.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- C Oliveira
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisboa, Portugal.
| | - F P M Oliveira
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisboa, Portugal
| | - M J Barata
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisboa, Portugal
| | - S M Teixeira
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisboa, Portugal
| | - C João
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisboa, Portugal
| | - D C Costa
- Champalimaud Centre for the Unknown, Champalimaud Foundation, Lisboa, Portugal
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Rahimi B, Boroofeh B, Dinparastisaleh R, Nazifi H. Cement pulmonary embolism after percutaneous vertebroplasty in a patient with cushing's syndrome: A case report. Respir Med Case Rep 2018; 25:78-85. [PMID: 30073141 PMCID: PMC6068333 DOI: 10.1016/j.rmcr.2018.06.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/16/2018] [Accepted: 06/17/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Vertebroplasty is a procedure most commonly used for vertebral compression fractures. Although it is a relatively safe procedure, complications have been reported. Cement embolism is seen in 2.1%-26% of patients after percutaneous vertebroplasty. CASE PRESENTATION a 38-year-old male who was diagnosed with cushing's syndrome, underwent percutaneous vertebroplasty for his thoracic osteoporotic compression fractures. 24-hours following vertebroplasty, he presented to emergency department with acute-onset dyspnea and chest pain. Chest radiography showed an opaque linear lesion in left pulmonary artery which was suggestive of cement embolism. Pulmonary spiral CT-scan further confirmed the diagnosis. The patient's symptoms improved over time, and warfarin was started with close cardiopulmonary assessments for indicators of cement embolus removal. CONCLUSION in patients with pulmonary cement embolism, conservative treatment may be recommended rather than a surgical removal except when the obstruction is extensive enough to cause hemodynamic changes. Given that all the related studies have suggested that pulmonary thromboembolism can occur as a complication due to bone cement leakage, discovering new cement alternatives and/or injection devices, seems beneficial.
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Affiliation(s)
- Besharat Rahimi
- Pulmonology Department, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Behdad Boroofeh
- Pulmonology Department, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Roshan Dinparastisaleh
- Internal Medicine Department, Imam Khomeini Hospital, Urmia University of Medical Sciences, Urmia, Iran
| | - Hale Nazifi
- Internal Medicine Department, Imam Khomeini Hospital, Urmia University of Medical Sciences, Urmia, Iran
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Aghyarian S, Hu X, Haddas R, Lieberman IH, Kosmopoulos V, Kim HKW, Rodrigues DC. Biomechanical behavior of novel composite PMMA-CaP bone cements in an anatomically accurate cadaveric vertebroplasty model. J Orthop Res 2017; 35:2067-2074. [PMID: 27891670 DOI: 10.1002/jor.23491] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 11/18/2016] [Indexed: 02/04/2023]
Abstract
Vertebral compression fractures are caused by many factors including trauma and osteoporosis. Osteoporosis induced fractures are a result of loss in bone mass and quality that weaken the vertebral body. Vertebroplasty and kyphoplasty, involving cement augmentation of fractured vertebrae, show promise in restoring vertebral mechanical properties. Some complications however, are reported due to the performance characteristics of commercially available bone cements. In this study, the biomechanical performance characteristics of two novel composite (PMMA-CaP) bone cements were studied using an anatomically accurate human cadaveric vertebroplasty model. The study involves mechanical testing on two functional cadaveric spinal unit (2FSU) segments which include monotonic compression and cyclical fatigue tests, treatment by direct cement injection, and microscopic visualization of sectioned vertebrae. The 2FSU segments were fractured, treated, and mechanically tested to investigate the stability provided by two novel bone cements; using readily available commercial acrylic cement as a control. Segment height and stiffness were tracked during the study to establish biomechanical performance. The 2FSU segments were successfully stabilized with all three cement groups. Stiffness values were restored to initial levels following fatigue loading. Cement interdigitation was observed with all cement groups. This study demonstrates efficient reinforcement of the fractured vertebrae through stiffness restoration. The pre-mixed composite cements were comparable to the commercial cement in their performance and interdigitative ability, thus holding promise for future clinical use. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2067-2074, 2017.
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Affiliation(s)
- Shant Aghyarian
- Biomaterials for Osseointegration and Novel Engineering Laboratory (BONE Lab), Department of Bioengineering, University of Texas at Dallas, Richardson, Texas, 75080
| | - Xiaobang Hu
- Scoliosis and Spine Tumor Center, Texas Back Institute, Texas Health Plano Hospital, Plano, Texas, 75093
| | - Ram Haddas
- Texas Back Institute Research Foundation, Plano, Texas, 75093
| | - Isador H Lieberman
- Scoliosis and Spine Tumor Center, Texas Back Institute, Texas Health Plano Hospital, Plano, Texas, 75093
| | - Victor Kosmopoulos
- Department of Orthopaedic Surgery, University of North Texas Health Science Center (UNTHSC), Fort Worth, Texas, 76107.,Department of Materials Science and Engineering, University of North Texas, Denton, Texas, 76203
| | - Harry K W Kim
- Center of Excellence in Hip Disorders, Texas Scottish Rite Hospital for Children, 2222 Welborn Street, Dallas, Texas, 75219.,Department of Orthopaedic Surgery, UT Southwestern Medical Center, Dallas, Texas, 75390
| | - Danieli C Rodrigues
- Biomaterials for Osseointegration and Novel Engineering Laboratory (BONE Lab), Department of Bioengineering, University of Texas at Dallas, Richardson, Texas, 75080
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Aghyarian S, Bentley E, Hoang TN, Gindri IM, Kosmopoulos V, Kim HKW, C. Rodrigues D. In Vitro and In Vivo Characterization of Premixed PMMA-CaP Composite Bone Cements. ACS Biomater Sci Eng 2017; 3:2267-2277. [DOI: 10.1021/acsbiomaterials.7b00276] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shant Aghyarian
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Elizabeth Bentley
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Thao N. Hoang
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Izabelle M. Gindri
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Victor Kosmopoulos
- Department
of Orthopaedic Surgery, University of North Texas Health Science Center (UNTHSC), Fort Worth, Texas 76107, United States
- Department
of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Harry K. W. Kim
- Center
for Excellence in Hip Disorders, Texas Scottish Rite Hospital for Children, 2222 Welborn Street, Dallas, Texas 75219, United States
- Department
of Orthopaedic Surgery, UT Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Danieli C. Rodrigues
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
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Botía González CM, Hernández Sánchez L, Plasencia Martínez JM. Cement Pulmonary Embolism. Am J Med Sci 2016; 353:507. [PMID: 28502344 DOI: 10.1016/j.amjms.2016.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 07/21/2016] [Accepted: 07/29/2016] [Indexed: 11/28/2022]
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A rock in a hard place: Cement pulmonary emboli after percutaneous vertebroplasty. Int J Cardiol 2016; 208:162-3. [PMID: 26871310 DOI: 10.1016/j.ijcard.2016.01.176] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 12/26/2022]
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An unusual cause of pulmonary embolism. Arch Bronconeumol 2015; 52:528-9. [PMID: 26706996 DOI: 10.1016/j.arbres.2015.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/02/2015] [Accepted: 11/04/2015] [Indexed: 11/22/2022]
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Shen C, Liu G, Hu JZ, Yang XH. Cardiac Perforation and Multiple Emboli After Percutaneous Vertebroplasty. Orthopedics 2015; 38:e947-50. [PMID: 26488794 DOI: 10.3928/01477447-20151002-93] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 03/10/2015] [Indexed: 02/03/2023]
Abstract
Percutaneous vertebroplasty is a minimally invasive technique for treating vertebral compression fractures and tumors. Although percutaneous vertebroplasty is considered a relatively safe and technically simple procedure, it is also associated with life-threatening complications as a result of cement leakage, including cardiac perforation and pulmonary embolism. A 63-year-old woman underwent percutaneous vertebroplasty for an L3 vertebral fracture and had cement leaks into the inferior vena cava, pulmonary arteries, and right heart chambers, with a free wall perforation. Surgical removal of the cement emboli was recommended as a result of apparent penetration of the ventricle and the fragile nature of polymethyl methacrylate. A cardiopulmonary bypass was immediately performed via a right atriotomy. A foreign body 10 cm in length was removed from the right atrium and ventricle. Arteriotomies were then performed, and 4 cement filaments were retrieved from the pulmonary arteries. The inferior vena cava was also surgically opened, allowing extraction of a cement fragment that was 12 cm long. The postoperative course was uneventful, and the patient fully recovered. This is the first report of the migration of a cement fragment larger than 10 cm that had migrated and embedded in the heart chamber. This report showed that imaging analysis is valuable when cement leakage is detected during percutaneous vertebroplasty and can be used to avoid serious complications and improve patient outcomes.
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Two novel high performing composite PMMA-CaP cements for vertebroplasty: An ex vivo animal study. J Mech Behav Biomed Mater 2015; 50:290-8. [DOI: 10.1016/j.jmbbm.2015.06.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 06/16/2015] [Accepted: 06/22/2015] [Indexed: 01/12/2023]
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Makary MS, Zucker IL, Sturgeon JM. Venous extravasation and polymethylmethacrylate pulmonary embolism following fluoroscopy-guided percutaneous vertebroplasty. Acta Radiol Open 2015; 4:2058460115595660. [PMID: 26331092 PMCID: PMC4548728 DOI: 10.1177/2058460115595660] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 06/18/2015] [Indexed: 12/27/2022] Open
Abstract
Percutaneous vertebroplasty has gained widespread popularity and demonstrated clinical efficacy in the treatment of spinal osteoporotic compression fractures and pathologic osteolytic lesions. Despite its rapid pain relief and safety, this minimally invasive intervention has exhibited some rare complications over the past decade. In this case study, we describe a patient with an uncommon complication of polymethylmethacrylate (PMMA) cement pulmonary embolism following fluoroscopy-guided percutaneous vertebroplasty for treatment of pain associated with an osteoporotic vertebral fracture. We present this case to highlight that vertebroplasty is not risk-free and that knowledge of such potentially severe complication is necessary for prevention and optimal operative outcomes.
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Affiliation(s)
- Mina S Makary
- Department of Radiology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Ivan L Zucker
- Department of Radiology, Mount Carmel West Medical Center, Columbus, Ohio, USA
| | - John M Sturgeon
- Department of Radiology, Mount Carmel West Medical Center, Columbus, Ohio, USA
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Papanastassiou ID, Filis AK, Gerochristou MA, Vrionis FD. Controversial issues in kyphoplasty and vertebroplasty in malignant vertebral fractures. Cancer Control 2015; 21:151-7. [PMID: 24667402 DOI: 10.1177/107327481402100208] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Kyphoplasty (KP) and vertebroplasty (VP) have been successfully employed in the treatment of pathological vertebral fractures. METHODS A critical review of the medical literature was performed and controversial issues were analyzed. RESULTS Evidence supports KP as the treatment of choice to control fracture pain and the possible restoration of sagittal balance, provided that no overt instability or myelopathy is present, the fracture is painful and other pain generators have been excluded, and positive radiological findings are present. Unilateral procedures yield similar results to bilateral ones and should be pursued whenever feasible. Biopsy should be routinely performed and 3 to 4 levels may be augmented in a single operation. Higher cement filling appears to yield better results. Radiotherapy is complementary with KP and VP but must be individualized. CONCLUSIONS In cases of painful cancer fractures, if overt instability or myelopathy is not present, unilateral KP should be pursued, whenever feasible, followed by radiotherapy. The technological advances in hardware and biomaterials, as well as combining KP with other modalities, will help ensure a safe and more effective procedure. Address.
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Controversial issues in kyphoplasty and vertebroplasty in osteoporotic vertebral fractures. BIOMED RESEARCH INTERNATIONAL 2014; 2014:934206. [PMID: 24724106 PMCID: PMC3960523 DOI: 10.1155/2014/934206] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 01/17/2014] [Indexed: 12/29/2022]
Abstract
Kyphoplasty (KP) and vertebroplasty (VP) have been successfully employed for many years for the treatment of osteoporotic vertebral fractures. The purpose of this review is to resolve the controversial issues raised by the two randomized trials that claimed no difference between VP and SHAM procedure. In particular we compare nonsurgical management (NSM) and KP and VP, in terms of clinical parameters (pain, disability, quality of life, and new fractures), cost-effectiveness, radiological variables (kyphosis correction and vertebral height restoration), and VP versus KP for cement extravasation and complications profile. Cement types and optimal filling are analyzed and technological innovations are presented. Finally unipedicular/bipedicular techniques are compared. Conclusion. VP and KP are superior to NSM in clinical and radiological parameters and probably more cost-effective. KP is superior to VP in sagittal balance improvement and cement leaking. Complications are rare but serious adverse events have been described, so caution should be exerted. Unilateral procedures should be pursued whenever feasible. Upcoming randomized trials (CEEP, OSTEO-6, STIC-2, and VERTOS IV) will provide the missing link.
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