Study on the feasibility of posterior thoracic transarticular screw fixation / 中国骨伤
China Journal of Orthopaedics and Traumatology
;
(12): 218-221, 2011.
Article
Dans Chinois
| WPRIM
| ID: wpr-344645
ABSTRACT
<p><b>OBJECTIVE</b>To study the feasibility and technical parameters of posterior transarticular screw fixation in the thoracic spine.</p><p><b>METHODS</b>Since September 2009 to December 2009, 20 thoracic cadaveric spines (12 males and 8 females) were dissected. The lateral masses and pedicles were exposed carefully. After the entrance point of transarticular screws was determined, posterior transarticular screws implantation was performed under direct visualization into T(1,2), T(5,6) and T(9,10). Then CT scan was performed. On the CT scan,the angle and length of the transarticular screw trajectory were measured.</p><p><b>RESULTS</b>The thoracic transarticular screw trajectory were caudal tilting in the sagittal plane and lateral tilting in the coronal plane with successful placement. There was little differences between different segmental of thoracic vertebrae of the angle, but without significance (P > 0.5). The average angles of the screws were (52.6 +/- 5.9) degrees caudal tilting in the sagittal plane and (12.4 +/- 2.9)0 lateral tilting in the coronal plane. The average trajectory lengths were (22.5 +/- 1.9) mm. There was significant differences statistically among T(1,2), T(5,6) and T(9,10) (P < 0.01).</p><p><b>CONCLUSION</b>Posterior transarticular screw fixation is feasible. Transarticular screw fixation in the thoracic spine affords an alternative to standard pedicle screw placement for thoracic stabilization.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Chirurgie générale
/
Thorax
/
Vis orthopédiques
/
Traitement d'image par ordinateur
/
Radiographie thoracique
/
Tomodensitométrie
/
Études de faisabilité
/
Articulations
Limites du sujet:
Adulte
/
Femelle
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
China Journal of Orthopaedics and Traumatology
Année:
2011
Type:
Article
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