Table IV:

Correlation of the wave sign with the occult PHMM tear in the ACL-deficient knee.

			Occult PH MM Tear
		Yes	No	Total
Wave Sign	Yes	2	8	10
No	5	47	52
Total	7	55	62
Sensitivity		28.5%	3.67% - 71.0%
Specificity		85.5%	73.3% - 93.5%
Positive Predictive Value		20.0%	6.17% - 48.72%
Negative Predictive Value		90.4%	85.3% - 93.8%