Objective: A foot for which the measured width is above the 95th centile for age
Subjective: A foot that appears disproportionately wide for its length
Note that the normative data [Malina et al., ; Hall et al., ] only include 4-16 year olds. Since foot width is still increasing at the 16-year-old age point on the graphs, extrapolation is not recommended. Therefore, persons more than 16 years of age or less than 4 years of age can only be assessed subjectively (until appropriate norms are identified or generated). The Hall et al.  handbook (pp. 238-239) states that foot width should be measured from the medial aspect of the first MTPJ to the lateral aspect of the fifth MTPJ. The subjective definition should be used with caution in patients with Short feet. In persons with polydactyly that includes a supernumerary metatarsal, the measurement definition from Hall et al.  would need to be modified to account for the supernumerary digit (i.e., if the patient had postaxial polydactyly, measure from the sixth MTPJ). It may be argued that this is double counting polydactyly as a wide foot, as the norms are derived from those with pentadactylous limbs.