* Image borrowed  from  Maîtrise Orthopédique

Examining for a fixed flexion deformity: The patient is placed in  the supine position and made to relax. The examiner grasps both the patient's heels and supports them at a height of 10 cm above the examination couch. This is the best position for screening for a flexion deformity, which is a major feature of knee pathology. The method is both sensitive and straightforward and is ideal for identifying a meniscal tear or other knee pathology. In addition, since the patient's feet are braced against the examiner's abdomen, the examiner can try to reduce the flexion deformity by pressing down on the patient's knees. The test shows that there is a mechanical obstruction, which prohibits the complete extension of the knee. The patient is only able to walk on the "point of the feet". This can be a bucket-handle meniscus tear, or a bulky luxated strip (a foreign body, the stub of the anterior cruciate ligament tear …).