Abstract
The objective of the present investigation was to examine the effect of cuboid height on the presence of plantar midfoot ulceration and the relationship of cuboid height to other commonly performed radiographic parameters during evaluation of midfoot Charcot neuroarthropathy. A retrospective analysis was performed of 68 feet in 60 subjects who met the inclusion criteria. We did not observe statistically significant differences in the presence of a plantar midfoot ulceration when considering a cuboid height threshold of 0.0 mm, 2.0 mm, −2.0 mm, or −5.0 mm nor was the cuboid height a robust predictor for the presence of plantar midfoot ulceration when considering the positive predictive value, negative predictive value, sensitivity, or specificity. We observed a significant negative association between a negative cuboid height and the presence of Sanders Type 2 deformities (76.2% of those with negative height versus 50.0% of those with positive height had type 2 deformities; p = .0036), the absence of radiographic visualization of the lateral tarsometatarsal joint (71.4% of those with negative height versus 26.9% of those with positive height had an absence of radiographic visualization; p = .005), and lower calcaneal inclination angles (6.06° versus 15.08°; p < .001). We further observed significant positive correlations between the cuboid height and the calcaneal–fifth metatarsal angle (0.655; p < .000), calcaneal inclination angle (0.591; p < .001), calcaneal–cuboid angle (0.254; p = .038), medial column height (0.264; p = .029), and first metatarsal inclination angle (0.245; p = .047). We also observed negative correlations with Meary's angle (−0.475; p < .001) and the talar declination angle (−0.387; p < .001). These findings showed a general trend toward a decreasing cuboid height and increasing sagittal plane deformity involving both the medial and the lateral columns. The results of the present investigation provide evidence against a single radiographic parameter being associated with the presence of plantar midfoot ulceration.
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