Physical Therapy Haven

Thessaly Test

To test for meniscal Injury

Patient stands flat footed on one leg while the examiner provides his or her hands for balance. The patient then flexes the knee to 20 degrees and rotates the femur on the tibia medially and laterally three times while maintaining the 20 degrees flexion. The patient tests first the good leg and then the injured leg. The test is considered positive for a meniscus tear if the patient experiences medial or lateral joint line discomfort. The patient may also have a sense of locking or catching in the knee. [1]

Sensitivity

89%[2] for medial meniscus

 

92%² for lateral meniscus

 

Specificity

97% ²for medial meniscus

 

96%² for lateral meniscus

 

+ 29.67²

-0.11² for medial meniscus

 

+23²

-0.083² for lateral meniscus