Recompression of Vertebral Bodies after Balloon Kyphoplasty for Vertebral Compression Fractures - Preliminary Report -

2009 ◽  
Vol 16 (2) ◽  
pp. 89 ◽  
Author(s):  
Young-Yul Kim ◽  
Chang-Goo Park ◽  
Kee-Won Rhyu
2020 ◽  
Author(s):  
Antonio Krüger ◽  
Martin Bäumlein ◽  
Tom Knauf ◽  
Hugues Pascal-Moussellard ◽  
Steffen Ruchholtz ◽  
...  

Abstract Background: Standard balloon kyphoplasty represents a well-established treatment option for osteoporotic vertebral compression fractures. Aim of the present study was to evaluate two different methods of percutaneous augmentation (standard Balloon kyphoplasty (BKP) versus Tektona (TEK)) with respect to height restoration. Methods: Four-teen vertebral bodies of two female cadavers were examined. Fractures were created using a standardized protocol. CT-scans were taken before and after fracture, as well as after treatment. Afterwards two groups were randomly assigned in a matched pair design: 7 vertebral bodies (VB) were treated with (BKP, Kyphon, Medtronic) and 7 vertebral bodies by TEK (Spineart, Switzerland) Anterior, central and posterior vertebral body heights were evaluated by CT-scans. Volumetry was performed using the CT-scans at three different timepoints. Results: Values before fracture represent 100 %. The anterior height after fracture was reduced to 75,99 (± 4,8) % for the BKP group and to 76,54 (± 9,17) % in the TEK Group. Statistically there was no difference for the groups (p = 1). After treatment the values increased to 93,06 (±5) % for the BKP Group and 87,71 (±6,2) % for the TEK Group. The difference before and after treatment was significant for both groups (BKP p =0,0006; TEK p= 0,03). Within the groups, there was no difference (p=0,13). The Volume of the vertebral body was reduced to 82,29 (±8,4) % in the BKP Group and to 76,54 (±8,6) % in the TEK Group. After treatment the volume was 89,26 (±6,9) % for the BKP Group and 88,80 (±8,7) % for the TEK Group. The difference before and after treatment was significant only for the TEK group (BKP p =0,0728 n.s.; TEK p= 0,0175). Within the groups, there was no difference (p=0,2). The average cement volume used was 6,1 (range 3,6 - 9 ml) for the BKP group and 5,3 (3 - 7,2 ml) for the TEK group respectively.Conclusions: Based on our results the new System Tektona in osteoporotic compression fractures might represent a promising alternative for the clinical setting, especially preserving bone. Further biomechanical tests and clinical studies have to proof Tektona`s capabilities.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Antonio Krüger ◽  
Martin Bäumlein ◽  
Tom Knauf ◽  
Hugues Pascal-Moussellard ◽  
Steffen Ruchholtz ◽  
...  

Abstract Background Standard balloon kyphoplasty represents a well-established treatment option for osteoporotic vertebral compression fractures. Aim of the present study was to evaluate two different methods of percutaneous augmentation (standard balloon kyphoplasty (BKP) versus Tektona® (TEK)) with respect to height restoration. Methods Four-teen vertebral bodies of two female cadavers were examined. Fractures were created using a standardized protocol. CT-scans were taken before and after fracture, as well as after treatment. Afterwards two groups were randomly assigned in a matched pair design: 7 vertebral bodies (VB) were treated with BKP (Kyphon, Medtronic) and 7 vertebral bodies by TEK (Spineart, Switzerland) Anterior, central and posterior vertebral body heights were evaluated by CT-scans. Volumetry was performed using the CT-scans at three different timepoints. Results Values before fracture represent 100%. The anterior height after fracture was reduced to 75.99 (± 4.8) % for the BKP group and to 76.54 (± 9.17) % in the TEK Group. Statistically there was no difference for the groups (p = 1). After treatment the values increased to 93.06 (± 5) % for the BKP Group and 87.71 (± 6.2) % for the TEK Group. The difference before and after treatment was significant for both groups (BKP p = 0.0006; TEK p = 0.03). Within the groups, there was no difference (p = 0.13). The Volume of the vertebral body was reduced to 82.29 (± 8.4) % in the BKP Group and to 76.54 (± 8.6) % in the TEK Group. After treatment the volume was 89.26 (± 6.9) % for the BKP Group and 88.80 (± 8.7) % for the TEK Group. The difference before and after treatment was significant only for the TEK group (BKP p = 0.0728 n.s.; TEK p = 0.0175). Within the groups, there was no difference (p = 0.2). The average cement volume used was 6.1 (range 3.6–9 ml) for the BKP group and 5.3 (3–7.2 ml) for the TEK group respectively. Conclusions Based on our results the new System Tektona® in osteoporotic compression fractures might represent a promising alternative for the clinical setting, especially preserving bone. Further biomechanical tests and clinical studies have to proof Tektona®`s capabilities.


2018 ◽  
Vol 07 (03) ◽  
Author(s):  
Cornelis Wilhelmus Jacobus van Tilburg ◽  
Johannes George Groeneweg ◽  
Dirk Leendert Stronks ◽  
Frank Johannes Petrus Maria Huygen

2020 ◽  
Author(s):  
Raquel Candido ◽  
Rafael Lama ◽  
Natália Chiari ◽  
Marcello Nogueira-Barbosa ◽  
Paulo Azevedo Marques ◽  
...  

Non-traumatic Vertebral Compression Fractures (VCFs) are generally caused by osteoporosis (benign VCFs) or metastatic cancer (malignant VCFs) and the success of the medical treatment strongly depends on a fast and correct classification of VCFs. Recently, methods for computer-aided diagnosis (CAD) based on machine learning have been proposed for classifying VCFs. In this work, we investigate the problem of clustering images of VCFs and the impact of feature selection by genetic algorithms, comparing the clustering i)with all features and ii)with feature selection through the purity results. The analysis of the clusters helps to understand the results of classifiers and difficulties of differentiating images of different classes by an expert. The results indicate that features selection improved the separability of clusters and purity. Feature selection also helps to understand which attributes are most important for analysing the images of vertebral bodies.


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