Reliability of three-dimensional foot sole surface measurements using a novel foot scan technology

Flatfoot is a complex multi-plane deformity of the foot, but is often classified using planar foot prints. A novel foot sole scan system (FAST) enables fast measurement of the three-dimensional foot sole surface and thus relevant morphological parameters. The current study aimed to assess the intra-rater, inter-rater and inter-session reliability of repeated measurements of typical foot parameters using FAST, in terms of intraclass correlation coefficients. The results showed that the FAST system had high system and test protocol reliability of repeated measurements of foot parameters.