Kinematics of the capitolunate joint in the sagittal plane. A new method based on reference points and triangulation.
J Hand Surg Br
; 23(3): 410-2, 1998 Jun.
Article
em En
| MEDLINE
| ID: mdl-9665538
ABSTRACT
A new method of assessing capitolunate alignment is presented. Three anatomical carpal reference points were evaluated on lateral radiographs using triangulation. Connecting these three points forms a triangle with dorsal, palmar and somewhat vertical sides. One hundred normal lateral wrist radiographs were measured. The overall dorsal limb (DL) to palmar limb (PL) ratio was found to be 0.74 (SD 0.07) over a range of 40 degrees extension to 42 degrees flexion. As the DL to PL ratio approached 1.0, a dorsal intercalated segment instability (DISI) deformity developed. Conversely, as the DL to PL ratio approached 0.5, a palmar intercalated segment instability (PISI) occurred. This method appears useful for evaluating static lateral radiographs for intercalary carpal alignment and possibly instability.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Articulação do Punho
/
Ossos do Carpo
Tipo de estudo:
Diagnostic_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Hand Surg Br
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Estados Unidos