Influence of the included angle between anterior aspects of S2 and S1 vertebral bodies on pelvic inlet imaging in mid-line sagittal plane / 中国骨伤
China Journal of Orthopaedics and Traumatology
;
(12): 645-649, 2014.
Artículo
en Chino
| WPRIM
| ID: wpr-249297
ABSTRACT
<p><b>OBJECTIVE</b>To analyze the influence of included angle between the anterior aspects of S2 and S vertebral bodies on pelvic inlet imaging in the pelvic midline sagittal plane.</p><p><b>METHODS</b>Totally 58 axial pelvic CT scans were chosen as study objects including 43 males and 15 females,with an average age of 40.7 years old (ranged,18 to 68 years old). The angles between the anterior aspects of S2 and S1, vertebral bodies and the horizontal plane on midline sagittal CT reconstruction were measured to simulate the optimal S2 and S1 inlet angles. The included angle between the anterior aspects of S2 and S1 vertebral bodies was calculated by subtrocting the S1,inlet angle from the S2 inlet angle defined as a base number. Then, the impact of the calculated included angles on the pelvic inlet imaging was analyzed. Results:
The S2 inlet angles averaged (30.5±6.5) degrees; the S inlet angles averaged (25.7±5.9) degrees. The difference between them was significant (t=3.35, P=0.001). Ten patients had zero angle between the anterior aspects of S2 and S1 vertebral bodies; 14 patients had negative angle, averaged-(8.9±8.1) degrees; 34 patients had positive angle,averaged (11.8+6.4) degrees.</p><p><b>CONCLUSION</b>The difference of included angle between the anterior aspects of S2 and S1 vertebral bodies leads to the difference between S1 inlet view and S2 inlet view in most cases, complicating the pelvic inlet imaging,and affecting the reliability of the application of pelvic inlet view. Utilizing the angles measured on the preoperative midlihe sagittal CT reconstruction to obatin the patient-customized S1 and S2 inlet views could accurately guide the S1 and S2 iliosacral screw insertion.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Pelvis
/
Columna Vertebral
/
Heridas y Lesiones
/
Tornillos Óseos
/
Procesamiento de Imagen Asistido por Computador
/
Tomografía Computarizada por Rayos X
/
Fijación Interna de Fracturas
/
Métodos
Límite:
Animales
/
Femenino
/
Humanos
/
Masculino
Idioma:
Chino
Revista:
China Journal of Orthopaedics and Traumatology
Año:
2014
Tipo del documento:
Artículo
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