The Preclinical Clubfoot Deformity - total collapse of the inner arch standing

Figure 1. Calcaneus and Talus remain in supinatus

• PMSv between 30 and 60 millimeters

• Weight bearing, knees extended, the feet are pronated (See Figures 2 below)

Figure 2 - Standing, weight over the heel bones.  Feet are pronated.

• Standing on toes, the inner longitudinal arch is intact; standing on the heels, the ILA collapses to the ground (See Figures 3 & 4 below)

                           
Figure 3 - Flexible Flatfoot          Figure 4 - Flexible Flatfoot
standing on toes                        standing on heel

• The Knee Bend Test facilitates the differential diagnosis between these two embryological foot structures
  

• PMSv lower (typically less than 26mm) for the Rothbarts Foot

• Treadmill Analysis
  

(2) Tarsal Coalition



(3) Spring Ligament Laxity (Ehlers-Danlos Syndrome and Marfan Syndrome)

(4) Mild Clubfoot Deformity


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