The pivot shift test is of limited clinical relevance in the arthritic anterior cruciate ligament-deficient knee.
J Knee Surg
; 23(3): 131-5, 2010 Sep.
Article
en En
| MEDLINE
| ID: mdl-21329254
ABSTRACT
The pivot shift test is used to assess the integrity of the anterior cruciate ligament (ACL). This test has been shown to be highly sensitive in detecting instability in knees with complete ACL rupture. However, in the presence of osteoarthritis, the rotation and subluxation required for the pivot shift to be effective can be limited and therefore is likely to impact upon the reliability of this test. We performed the pivot shift test on 50 patients, under general anesthesia, prior to total knee replacement and then recorded the integrity of the ACL intraoperatively. This allowed us to assess the accuracy of this test in the presence of significant osteoarthritis. Of the 50 knees tested, none had a positive pivot shift test preoperatively; however, 14% of the knees included in the study had a completely ruptured ACL. This gives a sensitivity of 0% and a specificity of 1% for the pivot shift test for ACL ruptures in the presence of established osteoarthritis. We conclude that the pivot shift test may not be a reliable test for ACL function in the presence of symptomatic arthritis of the knee.
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Banco de datos:
MEDLINE
Asunto principal:
Ligamento Cruzado Anterior
/
Artroplastia de Reemplazo de Rodilla
/
Osteoartritis de la Rodilla
/
Lesiones del Ligamento Cruzado Anterior
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Knee Surg
Asunto de la revista:
ORTOPEDIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Reino Unido