How Reliable is the Acetabular Cup Position Assessment from Routine Radiographs?
Iowa Orthop J
; 37: 181-187, 2017.
Article
en En
| MEDLINE
| ID: mdl-28852355
ABSTRACT
BACKGROUND:
Cup position is crucial for optimal outcomes in total hip arthroplasty. Radiographic assessment of component position is routinely performed in the early postoperative period.AIMS:
The aims of this study were to determine in a controlled environment if routine radiographic methods accurately and reliably assess the acetabular cup position and to assess if there is a statistical difference related to the rater's level of training.METHODS:
A pelvic model was mounted in a spatial frame. An acetabular cup was fixed in different degrees of version and inclination. Standardized radiographs were obtained. Ten observers including five fellowship-trained orthopaedic surgeons and five orthopaedic residents performed a blind assessment of cup position. Inclination was assessed from anteroposterior radiographs of the pelvis and version from cross-table lateral radiographs of the hip.RESULTS:
The radiographic methods used showed to be imprecise specially when the cup was positioned at the extremes of version and inclination. An excellent inter-observer reliability (Intra-class coefficient > 0,9) was evidenced. There were no differences related to the level of training of the raters.CONCLUSIONS:
These widely used radiographic methods should be interpreted cautiously and computed tomography should be utilized in cases when further intervention is contemplated.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Artroplastia de Reemplazo de Cadera
/
Articulación de la Cadera
/
Acetábulo
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Idioma:
En
Revista:
Iowa Orthop J
Asunto de la revista:
ORTOPEDIA
Año:
2017
Tipo del documento:
Article