[The ordinal localization of mono-type foot bones].

The osteologic collection of the chair for anthropology, Moscow State University, comprising male (n = 70) and female (n = 14) foot bones from persons aged more than 18-20, was investigated. An appropriate Martin program was fixed to the instep bones (IB) of the proximal and middle toe phalanxes (4 sizes for each bone) with 65 signs being studied in each case. The mathematical data processing was SPSS-aided. Diagnostic models for defining the order IB localization in the proximal and middle phalanxes were elaborated on the basis of discriminative analysis. The classification accuracy is maximal for IB (80-100%) and minimal for the middle phalanxes (26.19-77.38%). The definition of the order localization of phalanxes in toes 2-5 is virtually impossible. The designed method can be used alongside with the routine anatomic-and-morphological findings. The congruence of surfaces in the instep-phalanx and interphalangeal joints must be necessarily checked.