A boy aged three with indifference to pain was followed up until his death from amyloid disease some twenty-one years later. A full necropsy was done and the neuropathology suggested a sensory neuropathy.
1. A simple model embracing both the hind and forefoot is described. 2. From this model the expected results of various methods of correcting the pronated foot can be deduced, and these were confirmed by human experiment. 3. It is indicated that a permanent correction requires a biological modification of foot posture achieved by mechanical means.
1. The mechanical qualities of the peritalar joint, the calcaneo-contact joint, and their interreaction with the hip joint in the standing weight-bearing foot are considered. 2. The most efficient ways of correcting the pronated foot have been indicated.
