| Title |
Analysis of bone cement distribution around fenestrated pedicle screws in low bone quality lumbosacral vertebrae
|
|---|---|
| Published in |
International Orthopaedics, August 2018
|
| DOI | 10.1007/s00264-018-4115-4 |
| Pubmed ID | |
| Authors |
Sergio Gómez González, Gerard Cabestany Bastida, Maria Daniela Vlad, José López López, Pablo Buenestado Caballero, Luis Alvarez-Galovich, Maria Rodríguez-Arguisjuela, Enrique Fernández Aguado |
| Abstract |
To study the exact distribution of bone cement around augmented fenestrated pedicle screws in both lumbar and sacral vertebrae of patients with low bone quality. A total of 37 patients with instrumented lumbar fusion were investigated. 3D computed tomography virtual models of the injected cement and screws were obtained. The models were computed for their centroid (i.e. their average mass centre point), and their coordinates (x, y, z) were projected on their respective screw-transversal and screw-longitudinal planes for further analysis. The results showed better bone cement homogeneous distribution around the screws in lumbar (L4 and L5) than in sacral (S1) vertebrae. In the lumbar region, the centroids were transversally projected near the transversal centre of symmetry of the screws. On the other hand, in the sacral region, the cement flowed preferentially outside the centre of symmetry of the screws, into the sacral ala. The results confirm the different flow behaviours of bone cement in lumbar versus sacra vertebrae. The computer methodology followed in this study helps to understand the clinical monitoring observations and lays the foundations for better positioning of the screws and specific vertebrae-oriented screw designs. |
X Demographics
The data shown below were collected from the profiles of 8 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 4 | 50% |
| Italy | 1 | 13% |
| Unknown | 3 | 38% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 5 | 63% |
| Practitioners (doctors, other healthcare professionals) | 2 | 25% |
| Scientists | 1 | 13% |
Mendeley readers
The data shown below were compiled from readership statistics for 25 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 25 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 4 | 16% |
| Student > Master | 3 | 12% |
| Other | 2 | 8% |
| Librarian | 2 | 8% |
| Researcher | 2 | 8% |
| Other | 1 | 4% |
| Unknown | 11 | 44% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 8 | 32% |
| Environmental Science | 1 | 4% |
| Business, Management and Accounting | 1 | 4% |
| Nursing and Health Professions | 1 | 4% |
| Linguistics | 1 | 4% |
| Other | 2 | 8% |
| Unknown | 11 | 44% |
Attention Score in Context
This research output has an Altmetric Attention Score of 7. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 October 2020.
All research outputs
#5,323,250
of 25,383,278 outputs
Outputs from International Orthopaedics
#289
of 1,543 outputs
Outputs of similar age
#93,603
of 340,429 outputs
Outputs of similar age from International Orthopaedics
#6
of 30 outputs
Altmetric has tracked 25,383,278 research outputs across all sources so far. Compared to these this one has done well and is in the 78th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,543 research outputs from this source. They receive a mean Attention Score of 4.4. This one has done well, scoring higher than 81% of its peers.
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We're also able to compare this research output to 30 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 83% of its contemporaries.