scholarly journals Influence of bone cement distribution on outcomes following percutaneous vertebroplasty: a retrospective matched-cohort study

2021 ◽  
Vol 49 (7) ◽  
pp. 030006052110222
Author(s):  
Ling Mo ◽  
Zixian Wu ◽  
De Liang ◽  
Linqiang Y ◽  
Zhuoyan Cai ◽  
...  
Keyword(s):  
Cohort Study ◽  
Bone Cement ◽  
Percutaneous Vertebroplasty ◽  
Vertebral Compression Fractures ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
Cement Distribution ◽  
Group A ◽  
Group B

Objective To evaluate the influence of insufficient bone cement distribution on outcomes following percutaneous vertebroplasty (PVP). Methods This retrospective matched-cohort study included patients 50–90 years of age who had undergone PVP for single level vertebral compression fractures (VCFs) from February 2015 to December 2018. Insufficient (Group A)/sufficient (Group B) distribution of bone cement in the fracture area was assessed from pre- and post-operative computed tomography (CT) images. Assessments were before, 3-days post-procedure, and at the last follow-up visit (≥12 months). Result Of the 270 eligible patients, there were 54 matched pairs. On post-operative day 3 and at the last follow-up visit, significantly greater visual analogue scale (VAS) pain scores and Oswestry Disability Index (ODI) scores were obtained in Group B over Group A, while kyphotic angles (KAs) and vertebral height (VH) loss were significantly larger in Group A compared with Group B. Incidence of asymptomatic cement leakage and re-collapse of cemented vertebrae were also greater in Group A compared with Group B. Conclusions Insufficient cement distribution may relate to less pain relief and result in progressive vertebral collapse and kyphotic deformity post-PVP.

scholarly journals The Effect of Bone Cement Distribution on the Outcome of Percutaneous Vertebroplasty: A Case Cohort Study

2020 ◽  
Author(s):  
Lei Tan ◽  
Bingtao Wen ◽  
Zhaoqing Guo ◽  
Zhongqiang Chen
Keyword(s):  
Bone Cement ◽  
Vertebral Body ◽  
Percutaneous Vertebroplasty ◽  
Vertebral Height ◽  
Significant Difference ◽  
Cement Distribution ◽  
Post Operation ◽  
Group A ◽  
Group B

Abstract Background: To analyze the effect of different types of bone cement distribution after percutaneous vertebroplasty (PVP) in patients with osteoporotic vertebral compression fracture (OVCF). Methods: 137 patients withsinglelevelOVCF who underwent PVP were retrospectively analyzed. The patients were divided into two groups according to bone cementdistribution. Group A:bone cement contacted both upper and lower endplates; Group B: bone cement missed at least one endplate. Group Bwas divided into 3 subgroups. Group B1: bone cement only contacted the upper endplates; Group B2: bone cement only contacted the lower endplates; Group B3: bone cement only located in the middle of vertebral body. The visual analogue scale (VAS) scoreat 24 hours post operation and last follow-up, anterior vertebral height restoration ratio (AVHRR), anterior vertebral height loss ratio (AVHLR) and vertebral body recompression ratewere compared. Results: 24 hours post operation, the pain of all groups were significantly improved. At the last follow-up, the VAS score of group A was lower than that of group B. There were 9 cases (6.6%) of cement leakage, 4 cases (6.9%) in group A and 5 cases (6.3%) in group B. At the last follow-up, there were 16 cases (11.7%) of vertebral body recompression, including 3 cases (5.2%) in group A and 13 cases (16.5%) in group B. There was no significant difference in AVHRR between two groups. At the last follow-up, AVHLR in group B was higher than that in group A. In subgroup analysis, there was no significant difference in VAS score,vertebral recompression rate, AVHRR or AVHLR.Conclusions: If the bone cement fully contacted both the upper and lower endplates, it can better restore the strength of the vertebral bodyand maintain the height of the vertebral body, reduce the risk of the vertebral body recompression and long term pain.

scholarly journals The Effect of Bone Cement Distribution on the Outcome of Percutaneous Vertebroplasty: A Case cohort study

2020 ◽  
Author(s):  
Lei Tan ◽  
Bingtao Wen ◽  
Zhaoqing Guo ◽  
Zhongqiang Chen
Keyword(s):  
Bone Cement ◽  
Vertebral Body ◽  
Kyphotic Angle ◽  
Vas Score ◽  
Angle Change ◽  
Significant Difference ◽  
Cement Distribution ◽  
Group A ◽  
Group B

Abstract Background: To analyze the effect of different types of bone cement distribution after percutaneous vertebroplasty (PVP) in patients with osteoporotic vertebral compression fracture (OVCF). Methods: 137 patients with single level OVCF who underwent PVP were retrospectively analyzed. The patients were divided into two groups according to bone cement distribution. Group A: bone cement contacted both upper and lower endplates; Group B: bone cement missed at least one endplate. Group B was divided into 3 subgroups. Group B1: bone cement only contacted the upper endplates; Group B2: bone cement only contacted the lower endplates; Group B3: bone cement only located in the middle of vertebral body. The visual analogue scale (VAS) score at 24 hours post operation and last follow-up, anterior vertebral height restoration ratio (AVHRR), anterior vertebral height loss ratio (AVHLR), local kyphotic angle change and vertebral body recompression rate were compared. Results: 24 hours post operation, the pain of all groups were significantly improved. The average follow-up time was 15.3 ± 6.3 (6-24) months. At last follow-up, the VAS score of group A was lower than that of group B. There were 14 cases (10.2%) of adjacent vertebral fracture, 5 cases (8.6%) in group A and 9 cases (11.4%) in group B. There were 9 cases (6.6%) of cement leakage, 4 cases (6.9%) in group A and 5 cases (6.3%) in group B. At last follow-up, there were 16 cases (11.7%) of vertebral body recompression, including 3 cases (5.2%) in group A and 13 cases (16.5%) in group B. There was no significant difference in AVHRR between two groups. Local kyphotic angle change was significant larger in group B. At last follow-up, AVHLR in group B was higher than that in group A. In subgroup analysis, there was no significant difference in VAS score, local kyphotic angle change, vertebral recompression rate, AVHRR or AVHLR. Conclusions: If the bone cement fully contacted both the upper and lower endplates, it can better restore the strength of the vertebral body and maintain the height of the vertebral body, reduce the risk of the vertebral body recompression and long-term pain.

Comparison of unilateral and bilateral percutaneous vertebroplasty in the treatment of severe vertebral compression fractures

2020 ◽  
Author(s):  
Juan Long ◽  
Chun Jing He ◽  
Zikun Duan ◽  
Xinguo Kang ◽  
Jinfeng Zou
Keyword(s):  
Bone Cement ◽  
Percutaneous Vertebroplasty ◽  
Operation Time ◽  
Cement Leakage ◽  
Vertebral Compression Fractures ◽  
Compression Fractures ◽  
Needle Position ◽  
Relieve Pain ◽  
Group A ◽  
Group B

Abstract BACKGROUND The purpose of this study was to comparison of unilateral and bilateral percutaneous vertebroplasty in the treatment of severe vertebral compression fractures. METHODS Sixty-four severe vertebral compression fractures patients were treated in our hospital were randomly divided into group A and group B(n = 32). Group A received Percutaneous vertebroplasty (PVP) treatment by unilateral vertebral pedicle approach. Group B received PVP treatment by bilateral vertebralpedicle approach. Visual Analogue scale (VAS) score and Oswesty Disability Index (ODI) were recorded before surgery, and at 1d,1 month, and 6 months after operation. Also, the puncture path, needle position, intraoperative bone cement injection volume, bone cement dispersion, intra-operative and postoperative complications were observed. RESULTS Sixty-four vertebrae were successfully punctured.The postoperative VAS,ODI were lower than preoperative, showed statistical difference compared with the preoperative VAS, ODI, but there are no difference between Group A and Group B.The cement leakage and operation time is lower in group A than that in Group B. CONCLUSION PVP by unilateral vertebral pedicle approach in treating severe vertebral compression fractures can significantly relieve pain and promote functional recovery, which has advantages such as convenient operation and low complication rate.

scholarly journals Clinical observation of two bone cement distribution modes after percutaneous vertebroplasty for osteoporotic vertebral compression fractures

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Qiujiang Li ◽  
Xingxia Long ◽  
Yinbin Wang ◽  
Tao Guan ◽  
Xiaomin Fang ◽  
...  
Keyword(s):  
Bone Cement ◽  
Clinical Efficacy ◽  
Vertebral Body ◽  
Percutaneous Vertebroplasty ◽  
Vertebral Compression Fractures ◽  
Osteoporotic Vertebral Compression Fractures ◽  
Compression Fractures ◽  
Cement Distribution ◽  
Local Kyphosis

Abstract Background Current findings suggest that percutaneous vertebroplasty(PVP) is a suitable therapeutic approach for osteoporotic vertebral compression fractures (OVCFs). The present retrospective study aimed to investigate the differences in clinical efficacy and related complications between the two bone cement distribution modes. Methods We retrospectively reviewed the medical records of the patients with single-segment OVCFs who underwent bilateral percutaneous vertebroplasty. Patients were divided into blocky and spongy group according to the type of postoperative bone cement distribution. Clinical efficacy and related complications was compared between the two bone cement distribution modes on 24 h after the operation and last follow-up. Results A total of 329 patients with an average follow up time of 17.54 months were included. The blocky group included 131 patients, 109 females(83.2 %) and 22 males(16.8 %) with a median age of 72.69 ± 7.76 years, while the Spongy group was made up of 198 patients, 38 females(19.2 %) and 160 males(80.8 %) with a median age of 71.11 ± 7.36 years. The VAS and ODI after operation improved significantly in both two groups. The VAS and ODI in the spongy group was significantly lower than that in the blocky group, 24 h postoperatively, and at the last follow-up. There were 42 cases (12.8 %) of adjacent vertebral fractures, 26 cases (19.8 %) in the blocky group and 16 cases (8.1 %) in the spongy group. There were 57 cases (17.3 %) of bone cement leakage, 18 cases (13.7 %) in blocky group and 39 cases (19.7 %) in the spongy group. At 24 h postoperatively and at the last follow-up, local kyphosis and anterior vertebral height were significantly corrected in both groups, but gradually decreased over time, and the degree of correction was significantly higher in the spongy group than in the block group. The change of local kyphosis and loss of vertebral body height were also less severe in the spongy group at the last follow-up. Conclusions Compared with blocky group, spongy group can better maintain the height of the vertebral body, correct local kyphosis, reduce the risk of the vertebral body recompression, long-term pain and restore functions.

scholarly journals Clinical Observation of Two Bone Cement Distribution Modes After Percutaneous Vertebroplasty for Osteoporotic Vertebral Compression Fractures

2021 ◽  
Author(s):  
Qiujiang Li ◽  
Xingxia Long ◽  
Yinbin Wang ◽  
Tao Guan ◽  
Xiaomin Fang ◽  
...  
Keyword(s):  
Bone Cement ◽  
Clinical Efficacy ◽  
Vertebral Body ◽  
Percutaneous Vertebroplasty ◽  
Vertebral Compression Fractures ◽  
Osteoporotic Vertebral Compression Fractures ◽  
Compression Fractures ◽  
Cement Distribution ◽  
Local Kyphosis

Abstract Background:Current findings suggest that percutaneous vertebroplasty(PVP) is a suitable therapeutic approach for osteoporotic vertebral compression fractures (OVCFs).The present retrospective study aimed to investigate the differences in clinical efficacy and related complications between the two bone cement distribution modes. Methods:We retrospectively reviewed the medical records of the patients with single-segment OVCFs who underwent bilateral percutaneous vertebroplasty.Patients were divided into blocky and spongy group according to the type of postoperative bone cement distribution. Clinical efficacy and related complications was compared between the two bone cement distribution modes on 24h after the operation and last follow-up.RESULTS: The mean follow-up time was 17.54 months. The VAS and ODI after operation improved significantly in both two groups. The VAS and ODI in the spongy group was significantly lower than that in the blocky group, 24h postoperatively, and at the last follow-up. There were 42 cases (12.8%) of adjacent vertebral fractures, 26 cases (19.8%) in the blocky group and 16 cases (8.1%) in the spongy group. There were 57 cases (17.3%) of bone cement leakage, 18 cases (13.7%) in blocky group and 39 cases (19.7%) in the spongy group. At 24 hour postoperatively and at the last follow-up, local kyphosis and anterior vertebral height were significantly corrected in both groups, but gradually decreased over time, and the degree of correction was significantly higher in the spongy group than in the block group. Loss of local kyphosis and loss of vertebral body height were also less severe in the spongy group at the last follow-up.Conclusions: Compared with blocky group, spongy group can better maintain the height of the vertebral body, correct local kyphosis, reduce the risk of the vertebral body recompression, long-term pain and restore functions.

scholarly journals Precise Puncture Combined With Simplified Percutaneous Vertebroplasty to Treat Osteoporotic Vertebral Compression Fractures: A Comparative Analysis With Conventional Percutaneous Vertebroplasty

2020 ◽  
Author(s):  
Ju-tao Pang ◽  
Hong Chen ◽  
Bin Liu ◽  
Xin-hu Zhang
Keyword(s):  
Bone Cement ◽  
Operative Time ◽  
Percutaneous Vertebroplasty ◽  
Cement Leakage ◽  
Vertebral Compression Fractures ◽  
Osteoporotic Vertebral Compression Fractures ◽  
Compression Fractures ◽  
Intraoperative Fluoroscopy ◽  
Group A ◽  
Group B

Abstract ObjectiveThis study aimed to investigate the feasibility and clinical efficacy of precise puncture combined with simplified percutaneous vertebroplasty (PVP) for treating osteoporotic vertebral compression fractures (OVCF).MethodsA total of 82 patients with single-segment osteoporotic vertebral compression fractures (OVCF) were treated with PVP from Dec. 2016 to Nov. 2018. Among the patients, 45 cases in group A and accepted precise puncture combined with simplified PVP, 37 cases in group B and underwent conventional PVP. The operative time, number of intraoperative fluoroscopy, vertebral height restoration, postoperative bone cement distribution and bone cement leakage were observed and compared. The pain relief and improvement of quality of life (QOL) were assessed by visual analog score (VAS) and Oswestry disability index (ODI).ResultsThere were no difference in injected cement volume and hospital stays in group A versus group B (P > 0.05). The operative time, number of intraoperative fluoroscopy and material cost were lower in group A compared with group B (P < 0.05). After surgery, both of the VAS scores and ODI had a significant decrease (P < 0.05). The average vertebral height and Cobb angle were significantly improved (P < 0.05), there was no statistically significant difference between groups at different time points (P > 0.05). The proportion of patients with bone cement dispersion exceeding the midline of vertebra in group A was significantly higher than that in group B (82.2% vs 62.1%) (P < 0.05), whereas the bone cement leakage rate was lower than group B (8.9% vs 27.0%) (P < 0.05). Patients were followed-up for 12-23 months (mean 17.6 months) after surgery, and 3 cases (6.6%) of adjacent vertebral fractures occurred in group A and 2 cases (5.4%) occurred in group B (P > 0.05).ConclusionPrecise puncture can improve the accuracy of puncture needle through pedicle to vertebral body. It conducive to obtain a better diffusion of bone cement across the midline with lower bone cement leakage rate. Simplified PVP can reduce the surgery procedures, shorten the operatige time, reduces the X-ray frequency, but also saves material cost.

scholarly journals Analysis of the relationship between surgeon procedure volume and complications after total knee arthroplasty using a propensity-matched cohort study

2021 ◽  
Vol 3 (1) ◽  
pp. e000072
Author(s):  
Tosan Okoro ◽  
Sebastian Tomescu ◽  
J Michael Paterson ◽  
Bheeshma Ravi
Keyword(s):  
Total Knee Arthroplasty ◽  
Cohort Study ◽  
Relative Risk ◽  
Knee Arthroplasty ◽  
Deep Infection ◽  
Matched Cohort ◽  
Surgical Infection ◽  
Matched Cohort Study ◽  
Total Knee

ObjectivesThis study aimed to identify a threshold in annual surgeon volume associated with increased risk of revision (for any cause) and deep infection requiring surgery following primary elective total knee arthroplasty (TKA).DesignA propensity score matched cohort study.SettingOntario, Canada.Participants169 713 persons who received a primary TKA between 2002 and 2016, with 3-year postoperative follow-up.Main outcome measuresRevision arthroplasty (for any cause), and the occurrence of deep surgical infection requiring surgery.ResultsBased on restricted cubic spline analysis, the threshold for increased probability of revision and deep infection requiring surgery was <70 cases/year. After matching of 51 658 TKA recipients from surgeons performing <70 cases/year to TKA recipients from surgeons with greater than 70 cases/year, patients in the former group had a higher rate of revision (for any cause, 2.23% (95% Confidence Interval (CI) 1.39 to 3.07) vs 1.70% (95% CI 0.85 to 2.55); Hazard Ratio (HR) 1.33, 95% CI 1.21 to 1.47, p<0.0001) and deep infection requiring surgery (1.29% (95% CI 0.44 to 2.14) vs 1.09% (95% CI 0.24 to 1.94); HR 1.33, 95% CI 1.17 to 1.51, p<0.0001).ConclusionsFor primary TKA recipients, cases performed by surgeons who had performed fewer than 70 TKAs in the year prior to the index TKA were at 31% increased relative risk of revision (for any cause), and 18% increased relative risk for deep surgical infection requiring surgery, at 3-year follow-up.

scholarly journals Differential cerebrovascular risks in glioblastoma and meningioma patients: a population-based matched cohort study in Wales (United Kingdom)

2021 ◽  
Vol 23 (Supplement_4) ◽  
pp. iv12-iv12
Author(s):  
Michael T C Poon ◽  
Kai Jin ◽  
Paul M Brennan ◽  
Jonine Figueroa ◽  
Cathie Sudlow
Keyword(s):  
Cohort Study ◽  
General Population ◽  
Ischaemic Stroke ◽  
Population Based ◽  
Parametric Models ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
Hazard Ratios ◽  
History Of

Abstract Aims There is limited evidence on cerebrovascular risks in glioblastoma and meningioma patients. We aimed to compare cerebrovascular risks of these patients with the general population. Method We used population-based routine healthcare and administrative data linkage in this matched cohort study. Cases were adult glioblastoma and meningioma patients diagnosed in Wales 2000-2014 identified in the cancer registry. Controls from cancer-free general population were matched to cases (5:1 ratio) on age (±5 years), sex and GP practice. Factors included in multivariable models were age, sex, index of multiple deprivation, hypertension, diabetes, high cholesterol, history of cardiovascular disease, and medications for cardiovascular diseases. Outcomes were fatal and non-fatal haemorrhagic and ischaemic stroke. We used flexible parametric models adjusting for confounders to calculate the hazard ratios (HR). Results Final analytic population was 16,921 participants, of which 1,340 had glioblastoma and 1,498 had meningioma. The median follow-up time was 0.5 year for glioblastoma patients, 4.9 years for meningioma patients, and 6.6 years for controls. The number of haemorrhage and ischaemic stroke was 154 and 374 in the glioblastoma matched cohort, respectively, and 180 and 569 in the meningioma matched cohort, respectively. The adjusted HRs for haemorrhagic and ischaemic stroke were 3.74 (95%CI 1.87-6.57) and 5.62 (95%CI 2.56-10.42) in glioblastoma patients, respectively, and were 2.42 (95%CI 1.58-3.52) and 1.86 (95%CI 1.54-2.23) in meningioma patients compared with their controls. Conclusion Glioblastoma and meningioma patients had higher cerebrovascular risks; these risks were even higher for glioblastoma patients. Further assessment of these potentially modifiable risks may improve survivorship.

Sign in / Sign up

Export Citation Format

Share Document