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Thessaly Test

Thessaly Test


Name
Purpose
Description
Sensitivity, Specificity
Validity, Reliability
Likelihood Ratio +/-
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



[1] Magee DJ. Orthopedic Physical Assessment: 5th Edition. St. Louis, MO: Saunders Elsevier;2008.
[2] Karachalios T, et al. Diagnostic accuracy of a new clinical test (the Thessaly test) for early detection of meniscal tears. J Bone Joint Surg Am. 2005;87:955-962.