Ferro-Cement Injection Grout for Foundation Strengthening

2018 ◽  
pp. 127-135
Author(s):  
Maria Avdusheva ◽  
Alexander Nevzorov
Keyword(s):  
Cement Injection

013 Kyphoplasty in traumatic injuries: multistep cement injection to seal off cortical bone defects

2009 ◽  
Vol 1 (1) ◽  
pp. 77-77
Author(s):  
A De Simone ◽  
G Bruzzese ◽  
G Buono ◽  
C Sicignano ◽  
L Delehaye ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Bone Defects ◽  
Traumatic Injuries ◽  
Cement Injection

scholarly journals The clinical efficacy of three application methods of local anesthesia in percutaneous vertebroplasty: A retrospective single-center cohort study

2020 ◽  
Author(s):  
Xinjie Liang ◽  
Weiyang Zhong ◽  
Tianji Huang ◽  
Xiaoji Luo
Keyword(s):  
Local Anesthesia ◽  
Percutaneous Vertebroplasty ◽  
Vertebral Compression Fractures ◽  
Blood Oxygen Saturation ◽  
Cement Injection ◽  
Significant Difference ◽  
Group A ◽  
Intraoperative Pain ◽  
Application Methods ◽  
Group B

Abstract Background: Although various studies have described the methods of anaesthesia in percutaneous vertebroplasty(PV) in treating osteoporotic vertebral compression fractures (OVCFs), there is still no consensus on the optimal treatment regimen.The study aims to investigate the efficacy of three application methods of local anesthesia in PV treating OVCFs.Methods：A total of 96 patients of OVCFs were reviewed and divided into three groups(A: lidocaine, B: ropivacaine, C: lidocaine+ropivacaine). The visual analog scale(VAS), blood pressure(BP), heart rate(HR), blood oxygen saturation(BOS), surgery time were recorded at the points of before puncture, puncture, cement injection, and after surgery.Results: The mean age of the patients was 74.13±7.02 years in group A, 70.47±5.50 years in group B, and 73.07±7.51 years respectively without significant difference. No significant differences were found in the sex, age, hospital stay, surgery time, blood loss, and cement volume. During the period of before surgery and 4-hour after surgery, the VAS in group C decreased significantly at the period of puncture, cement injection, immediately after surgery. Overall, the systolic BP, diastolic BP, HR, BOS during the different period among the groups, there were no significant differences except the HR in the period of the puncture in group C was slower than that in other groups and HR in the period of cement injection in the group A was faster than other two groups. A correlation was observed between the VAS and the period of cement injection(r=0.5358), after surgery(r=0.5775) in group C.Conclusion: In conclusion, the use of the lidocaine in combination with ropivacaine could relieve the effective intraoperative pain in PV treating OVCFs patients which is reliable and safe.

A preliminary comparative clinical study of vertebroplasty with multineedle or single-needle interstitial implantation of 125I seeds in the treatment of osteolytic metastatic vertebral tumors

2014 ◽  
Vol 20 (4) ◽  
pp. 430-435 ◽  
Author(s):  
Tao Li ◽  
Jianmin Li ◽  
Zhen Wang ◽  
Baodong Liu ◽  
Dunfu Han ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Bone Cement ◽  
Evaluation Criteria ◽  
Clinical Results ◽  
Needle Insertion ◽  
Karnofsky Performance Scale ◽  
Injection Volume ◽  
Clinical Method ◽  
Cement Injection ◽  
125I Seeds

Object Percutaneous vertebroplasty (PVP) combined with brachytherapy using the interstitial implantation of 125I seeds has previously yielded encouraging clinical results in the treatment of metastatic vertebral tumors. However, the bone cement injection volume is very small due to the osteolytic damage to the metastatic vertebrae, and the ideal spatial distribution of the 125I seeds is difficult to achieve. In the current study, the authors present a clinical method for puncture needle insertion to achieve a greater bone cement injection volume and a more ideal spatial distribution of the 125I seeds. Methods Twenty-nine patients with osteolytic metastatic vertebral tumors were divided into 2 groups and were treated with either PVP combined with multineedle interstitial implantation of 125I seeds, or PVP combined with single-needle interstitial implantation of 125I seeds. Clinical efficacy was evaluated according to a visual analog scale (VAS) of pain, the Karnofsky Performance Scale (KPS), and the Response Evaluation Criteria In Solid Tumors (RECIST). Results Back pain was significantly alleviated in all patients after surgery. Compared with the preoperative scores, the VAS scores were significantly decreased in both groups at 1 week and 3 months postoperatively (p < 0.05), but there were no significant intergroup differences (p > 0.05). The postoperative quality of life was improved in both groups; the KPS scores increased significantly compared with the preoperative scores (p < 0.05), and the postoperative KPS scores were significantly different between the 2 groups (p < 0.05). No intergroup differences were observed in pain alleviation, but the bone cement injection volume was significantly greater in the multineedle group than in the single-needle group (p < 0.05). The clinical benefit rate and disease control rate at 3 months after the operation were both significantly better for the multineedle group (p < 0.05). Conclusions The outcomes of PVP combined with multineedle interstitial implantation of 125I seeds in patients with osteolytic metastatic vertebral tumors appeared to be better than the outcomes of PVP combined with single-needle interstitial implantation of 125I seeds. These better outcomes may be the result of the greater bone cement injection volume and the more ideal spatial distribution of the 125I seeds.

Vertebroplasty Using Real-Time, Fluoroscopy-Controlled, Catheter-Assisted, Low-Viscosity Cement Injection

Spine ◽  
2008 ◽  
Vol 33 (8) ◽  
pp. 919-924 ◽  
Author(s):  
Chung-Wei Lee ◽  
Yao-Hung Wang ◽  
Hon-Man Liu ◽  
Ya-Fang Chen ◽  
Hung-Jen Hsieh
Keyword(s):  
Real Time ◽  
Cement Injection ◽  
Low Viscosity

Increasing pedicle screw anchoring in the osteoporotic spine by cement injection through the implant

2007 ◽  
Vol 7 (3) ◽  
pp. 366-369 ◽  
Author(s):  
Patrick Fransen
Keyword(s):  
Pedicle Screw ◽  
Degenerative Spondylolisthesis ◽  
Elevated Risk ◽  
Severe Osteoporosis ◽  
Poor Bone Quality ◽  
Decompressive Laminectomy ◽  
Hardware Failure ◽  
Cement Injection ◽  
Fluoroscopic Control ◽  
Additional Stability

✓Instrumented spinal fusion in patients with osteoporosis is challenging because of the poor bone quality and is complicated by an elevated risk of delayed hardware failure. The author treated two patients presenting with severe osteoporosis, spinal stenosis, and degenerative spondylolisthesis. He performed decompressive laminectomy, posterolateral fusion, and pedicle screw (PS) fixation involving screws with side openings that allow cement to be injected through the implant. The cement injection was conducted under fluoroscopic control without complications. Although this technique needs validation in a larger population of patients, the author believes that the injection of cement through these PSs can be performed safely in carefully selected patients. This technique creates not only a vertebroplasty-like effect that strengthens the vertebral body but also provides the additional stability afforded by the immediate anchoring of the screw, which may allow a shorter-length construct, save mobile segments, and finally reduce the risk of hardware failure.

A Conductive Cooling Scheme for Bone Augmentation of the Proximal Femur With PMMA: An Experimental and Finite Element Study

2019 ◽  
Author(s):  
Mahsan Bakhtiarinejad ◽  
Amirhossein Farvardin ◽  
Alireza Chamani ◽  
Mehran Armand
Keyword(s):  
Finite Element ◽  
Cooling System ◽  
Peak Temperature ◽  
Curing Temperature ◽  
Maximum Temperature ◽  
Data Simulation ◽  
Cement Injection ◽  
Simulation Results ◽  
One Year ◽  
Ice Water

Abstract The rate of one-year mortality after osteoporotic hip fracture in elderly is reported to be more than 20%. Hip augmentation using polymethylmethacrylate (PMMA) is an alternative preventive approach for patients at the highest risk of osteoporotic fracture. Excessive injection volumes of PMMA however may introduce the risk of thermal osteonecrosis. We have previously proposed a Finite element (FE) simulation to estimate the bone temperature elevations after cement injection in three key locations and demonstrated an agreement between the simulation results and the temperature measurements during the experiment. Previous study showed that the maximum temperature-rise measured at the hip surface is 10°C. The aim of this study is to introduce a cooling approach to reduce the PMMA’s curing temperature after cement injection during hip augmentation. For this purpose, we perform a conductive cooling experiment with a metallic K-wire attached to an ice-water bath. We also create a finite element simulation model for the proposed cooling system to estimate the peak temperature reduction and compare the simulation results with experimental data. Simulation results demonstrate the decrease of 80% of peak curing temperature during PMMA polymerization; similarly, sawbone experiments also show that on average the peak temperature has been reduced 64% when cooling system is integrated to the hip augmentation procedure.

An Augmented Fluoroscopic Guidance Technique to Improve Needle Placement and Cement Injection for Sacroplasty

2020 ◽  
Vol 43 (10) ◽  
pp. 1574-1577
Author(s):  
Min Lang ◽  
Aya Rebet ◽  
Benjamin A. Tritle ◽  
Amanjit S. Gill
Keyword(s):  
Fluoroscopic Guidance ◽  
Needle Placement ◽  
Cement Injection ◽  
Guidance Technique

scholarly journals Kyphoplasty for occult and non-occult osteoporotic vertebral fractures: a retrospective study

2019 ◽  
Vol 48 (4) ◽  
pp. 030006051989476
Author(s):  
Zhangzhe Zhou ◽  
Zhiyong Sun ◽  
Yimeng Wang ◽  
Xiaoyu Zhu ◽  
Zhonglai Qian
Keyword(s):  
Vertebral Fractures ◽  
Operative Time ◽  
Fluoroscopy Time ◽  
Vertebral Compression Fractures ◽  
Osteoporotic Vertebral Compression Fractures ◽  
Vertebral Height ◽  
Injection Volume ◽  
Compression Fractures ◽  
Cement Injection ◽  
Osteoporotic Vertebral Fractures

Objective To compare the safety and efficacy of kyphoplasty in the treatment of occult and non-occult osteoporotic vertebral compression fractures (OOVF). Material and Methods From 2015 to 2017, 82 OOVF and 105 non-occult osteoporotic vertebral compression fractures (N-OOVF) were evaluated with the Visual Analog Scale (VAS), Oswestry Disability Index (ODI), and vertebral height preoperatively, immediately postoperatively, and one year postoperatively. Operative time, fluoroscopy time, and cement injection volume were recorded. Results Compared with the preoperative VAS and ODI scores, the scores of both groups were significantly improved after surgery. Preoperative ODI and VAS scores of the OOVF were lower than those of the N-OOVF. The operative time, fluoroscopy time, and bone cement injection volume of the OOVF were significantly lower than those of the N-OOVF. Vertebral height of the N-OOVF improved significantly after surgery. There were differences in cement leakage and adjacent vertebral fractures between the two groups. Conclusion Compared with N-OOVF, OOVF are safer with kyphoplasty, and it is necessary to diagnose OOVF in a timely manner.

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