Flexion means 'bending'.
Page updated September 2023 by Dr Sheila Strover (Clinical Editor)
![range of motion](/sites/default/files/users/user1/romx250_kracked.png)
Knee range of motion.
Flexion range of motion
A straight leg is said to be at zero (0) degrees of flexion. A fully flexed knee may reach about 140 degrees of flexion, depending on the muscle/fat bulk of the limb.
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A ski injury with investigative arthroscopy triggered internal scarring (arthrofibrosis) and loss of range of motion in the knee. The discussion focuses on rehabilitation.
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