Comparison of Accuracy in Expert Clinical Examination versus Magnetic Resonance Imaging and Arthroscopic Exam in Diagnosis of Meniscal Tear

Table 3

Sensitivity, specificity, accuracy, positive predictive value, and negative predictive value in Thessaly, McMurray, and Apley tests.

Type of test	Accuracy (%)	Negative predictive value (%)	Positive predictive value (%)	Specificity (%)	Sensitivity (%)
Thessaly	90.69	94.2	85.3	90.7 (79.7–96.9)	90.6 (75.0–97.9)
McMurray	72.09	81.3	60.5	72.2 (58.5–83.5)	71.9 (53.3–86.2)
Apley	69.77	79.2	57.9	70.4 (59.4–82)	68.7 (50–83.9)

The results of the comparison of the Thessaly test with each of the McMurray and Apley tests were statistically significant (); also, the McMurray and Apley tests were compared with each other with no significant difference (). Findings from each of the Thessaly, McMurray, and Apley tests were also compared with the MRI results, which unlike the McMurray and Apley tests, were not statistically significant for the Thessaly test ().