Radiographic-directed local coordinate systems critical in kinematic analysis of walking in diabetes-related medial column foot deformity

摘要: Diabetic foot deformity onset and progression maybe associated with abnormal ankle motion. The modified Oxford multi-segmental model allows kinematic assessment of inter-segmental However, there are insufficient anatomical landmarks to accurately representation the alignment hindfoot forefoot segments during construction. This is most notable for sagittal plane which referenced parallel floor, allowing comparison excursion but not capturing important hind-to-forefoot diabetic disease can potentially underestimate true differences. purpose study was compare walking kinematics using local coordinate systems derived from radiographic directed incorporated individual calcaneal 1st metatarsal declination pitch angles forefoot. We studied twelve participants in each following groups: (1) diabetes mellitus, peripheral neuropathy medial column (DMPN+), (2) DMPN without (DMPN−) (3) age- weight-match controls. system did identify differences between groups initial, peak, final, or relative shank dorsiflexion/plantarflexion walking. identified DMPN+ group have an peak final position that more dorsiflexed (lower arch phenotype) than DMPN− (p < .05). Use modeling those reveals segmental motion occurring upon indicative a lower arch.