A comparison of registration techniques for computer- and image-assisted elbow surgery.
Comput Aided Surg
; 12(4): 208-14, 2007 Jul.
Article
em En
| MEDLINE
| ID: mdl-17786596
ABSTRACT
Optimal function following elbow replacement surgery is dependent on the accurate replication of the elbow's flexion-extension axis. Currently, position and orientation of the axis are estimated from visual landmarks. In order to develop computer-assisted techniques to more accurately define this axis, a surface-based registration technique employing a hand-held laser scanner was evaluated against a conventional paired-point registration method to determine whether it produced improved alignment of the flexion-extension axis of the elbow. Registration error was 0.8 +/- 0.3 mm for surface-based registration, compared with 1.9 +/- 1.0 mm for the conventional registration method. These results suggest that the implementation of a surface-based registration technique may lead to a more accurate axis determination and improved clinical outcomes following elbow replacement surgery.
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Bases de dados:
MEDLINE
Assunto principal:
Interpretação de Imagem Radiográfica Assistida por Computador
/
Artroplastia de Substituição
/
Cirurgia Assistida por Computador
/
Articulação do Cotovelo
/
Lasers
Limite:
Humans
Idioma:
En
Revista:
Comput Aided Surg
Ano de publicação:
2007
Tipo de documento:
Article