A guideline for placement of an infra-acetabular screw based on anatomic landmarks via an intra-pelvic approach.
J Orthop Surg Res
; 13(1): 77, 2018 Apr 10.
Article
en En
| MEDLINE
| ID: mdl-29631637
ABSTRACT
BACKGROUND:
Due to demographic changes, more and more fracture patterns involving anterior acetabular structures occur. The infra-acetabular screw is seen a useful tool to increase stability in fixation of the acetabular cup. However, the exact position of this screw in relation to anatomic landmarks which are intra-operatively palpable via an intra-pelvic approach has not yet been determined.METHODS:
This biomorphometric experimental study references the ideal screw position of an infra-acetabular screw to anatomic landmarks palpable via an intra-pelvic approach. Therefore, we created a computer tomography-based 3D-model of 40 patients (20 women, 20 men) who received a computer tomography (CT) scan of the pelvis for any other reason than an acetabular fracture.RESULTS:
The entry point of an ideal infra-acetabular was of high constancy. At mean, this point was 10.2 mm caudal and 10.4 mm medial of the ilio-pubic/ilio-pectineal eminence. This reference is independent of age, gender, or physical dimensions. However, we found gender-dependent differences for the angulation and the length of the screw.CONCLUSIONS:
This study provides a comprehensive guideline to determine the ideal entry point for an infra-acetabular screw via an intra-pelvic approach. The entry point is located 10.2 mm caudal and 10.4 mm medial of the ilio-pubic/ilio-pectineal eminence. TRIAL REGISTRATION Clinical Trial Registry University of Regensburg Z-2017-0930-1 . Registered 04. Dec 2017.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Tornillos Óseos
/
Fracturas Óseas
/
Puntos Anatómicos de Referencia
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Fijación Interna de Fracturas
/
Acetábulo
Tipo de estudio:
Diagnostic_studies
/
Guideline
Límite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Orthop Surg Res
Año:
2018
Tipo del documento:
Article
País de afiliación:
Alemania