Inventor and Designer of Postural Control Insoles

The Knee Bend Test - used in the Differential Diagnosis for the PreClinical Clubfoot Deformity (PCFD)

Positive Knee Bend Test for PCFD

  • Knees Straight - both feet pronated
  • Knees Bent -  pronation increases (In the above patient, right > left)

Note difference in the inward rotation of the knees:  Right > Left 

Above patient Dx with PreClinical Clubfoot Deformity

Note the linear tracking pattern using a proprioceptive insole designed for the PreClinical Clubfoot Deformity


Knee Bend Test

Diagnosing the PreClinical Clubfoot Deformity

Knee Bend Test on a patient diagnosed as having the PreClinical Clubfoot Deformity

  • Knee Bend Test Barefooted (above left) - note the torsional tracking pattern from knee straight (weight over the heels) to knee bent (weight over the forefoot)
  • Knee Bend Test using a Postural Control Insole designed for Rothbarts Foot (above right) - No improvement in the torsional tracking pattern