Hi David! Thanks for asking! Correct sizing for a knee immobilizer requires two key measurements: Length and Circumference.
1. Length (Determines Immobilizer Size)
Measure the distance from your groin crease down to 1-2 inches above your ankle bone.
2. Circumference (Determines Fit)
Take these two measurements and compare them to the product's sizing chart:
Thigh: Measure circumference 6 inches above the center of the kneecap.
Calf: Measure the circumference 6 inches below the center of the kneecap.
Action: Use these three measurements (Length, Thigh, and Calf) to find the best match on the specific Medline sizing chart for the immobilizer you are ordering.
Thanks,
The Medical Supply Pros Team.