Chumlea WC, Roche AF, Steinbaugh ML. Estimating stature from knee height for persons 60 to 90 years of age.
Female: height (cm) = 84.88 – 0.24 x age (years) + 1.83 x leg size (cm).
Male: height (cm) = 64.19 – 0.04 x age (years) + 2.03 x leg size (cm).
The formula is valid only for an age of 60 years or more.
In patients aged over 60 with dorsal static disorders (kyphosis, scoliosis, vertebral compression), it is recommended to estimate height using the Chumlea equation.
It is recommended to measure the size of the leg in the patient in the supine position, knees bent at 90°, using a medical measuring rod placed under the foot, and the mobile part supported above the knee at the level of the condyles. .
In patients aged under 60, with dorsal static disorders (kyphosis, scoliosis, vertebral compression), there is no professional agreement on the method to be used for estimating height.