| Telos Equipment for stress examination |
 The total angle between tibia and talus is measured. A value of more than 10° : definite findings. Between 5°-10° : a comparative x-ray is necessary. A change of the distance between fibula tip and talus (comparative x-ray) can be evaluated as another sign of rupture. |
 The subluxation position of the talus (ventral direction) is measured: - If the distance between the rearmost part of the tibia joint surface to the nearest point of the talus surface is more than 10 mm : definite findings. - with clinical findings and a measured distance of 5-10mm a comparative x-ray is necessary. |
 Comparative x-rays are indispensable Position of the rear shape of femurcondylar and tibia plateau - see ACL Lachman-Test. Backdrawer values from 10mm and above are indicator of positive findings. If necessary, superimpose the x-rays of both knee joints. |
 Comparative x-rays are recommended The outlines of the rear edge of the medial and collateral tibia plateau should possibly lie closely together, and also the outlines of the posterior femur condylar shape (sufficient turning-out rotation). Backdrawer values form 10mm on are pathognomonic for a lesion of the anterior crucial ligament. It is seldom necessary to superimpose the x-rays of both knee joints. |
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