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To compare tibial bone texture between Kashin-Beck disease (KBD) patients and normal individuals from plain radiographs using an advanced image analysis. Plain knee radiographs were obtained from KBD patients (n = 49) and age-matched healthy controls (n = 98). KBD were graded with diagnostic criteria WS/T 207-2010. The textural values related to bone structure from medial and lateral tibial subchondral and trabecular bones were evaluated using entropy of Laplacian-based image (E Lap ), entropy of local binary patterns (E LBP ), homogeneity indices (HI) of local angles (HI Mean , HI Perp  and HI Paral ), and fractal dimensions from horizontal (FD Hor ) and vertical (FD Ver ) structures. KBD patients were shorter in height and lighter in weight, and their tibial width was wider than controls. Anatomical angle of KBD patients showed more genu valgus. Total KBD patients and subgroups had higher E Lap , HI Mean , HI Perp  and HI Paral  in detected tibial subchondral and trabecular bones than controls, except E Lap  in lateral subchondral bone. E LBP , FD Hor  and FD Ver  from the detected tibial bone in KBD patients and subgroups were lower than controls, except FD Ver  in lateral trabecular bone. Our results indicate that micro-scale in bone texture in KBD-affected knees can be quantitatively examined from plain radiographs using an advanced image analysis.

Comparison of bone texture between normal individuals and patients with Kashin-Beck disease from plain radiographs in knee