PURPOSE: The aim of this study was to investigate the usefulness of sonography in diagnosing tears of the knee menisci. METHODS: In this retrospective study, we reviewed the sonographic examinations of the knees of 321 patients diagnosed with a torn meniscus on the basis of clinical findings. Of the 321 knees imaged, 216 were also examined using MRI or CT. Arthroscopic meniscectomy was performed on 126 knees. RESULTS: MRI or CT did not confirm 48% (71 cases) of the positive sonographic diagnoses (ie, false positives) and 72% (50 cases) of the negative sonographic diagnoses (ie, false negatives). Thus, the sonographic diagnosis was correct in 95 cases (44%) and incorrect in 121 cases (56%), yielding low rates of sensitivity (60%) and specificity (21%). Among the 126 cases in which arthroscopic meniscectomy was performed, arthroscopy confirmed 100% of the MRI or CT diagnoses of meniscal tears. CONCLUSIONS: Our results indicate that sonography is not accurate enough to be used as the only imaging modality for diagnosing tears of the knee menisci.
Is there a role of sonography in the diagnosis of tears of the knee menisci? / R. Azzoni, P. Cabitza. - In: JOURNAL OF CLINICAL ULTRASOUND. - ISSN 0091-2751. - 30:8(2002), pp. 472-476. [10.1002/jcu.10106]
Is there a role of sonography in the diagnosis of tears of the knee menisci?
R. AzzoniPrimo
;P. CabitzaUltimo
2002
Abstract
PURPOSE: The aim of this study was to investigate the usefulness of sonography in diagnosing tears of the knee menisci. METHODS: In this retrospective study, we reviewed the sonographic examinations of the knees of 321 patients diagnosed with a torn meniscus on the basis of clinical findings. Of the 321 knees imaged, 216 were also examined using MRI or CT. Arthroscopic meniscectomy was performed on 126 knees. RESULTS: MRI or CT did not confirm 48% (71 cases) of the positive sonographic diagnoses (ie, false positives) and 72% (50 cases) of the negative sonographic diagnoses (ie, false negatives). Thus, the sonographic diagnosis was correct in 95 cases (44%) and incorrect in 121 cases (56%), yielding low rates of sensitivity (60%) and specificity (21%). Among the 126 cases in which arthroscopic meniscectomy was performed, arthroscopy confirmed 100% of the MRI or CT diagnoses of meniscal tears. CONCLUSIONS: Our results indicate that sonography is not accurate enough to be used as the only imaging modality for diagnosing tears of the knee menisci.File | Dimensione | Formato | |
---|---|---|---|
Is there a role for sonosgraphy in the diagnosis of tears of the knee menisci.pdf
accesso solo dalla rete interna
Tipologia:
Publisher's version/PDF
Dimensione
304.47 kB
Formato
Adobe PDF
|
304.47 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.