Jung HS, Park MJ, Won YS, et al. - This study was attempted to assess whether and how the shape of the distal radius sigmoid notch is associated with triangular fibrocartilage complex (TFCC) foveal tear. Researchers retrospectively included patients in two different groups between 2013 and 2018. For foveal tear of the wrist, the patient group comprised individuals who had undergone arthroscopic transosseous TFCC foveal repair. They categorized sigmoid notch shape into four types (flat-face, C-, S-, and ski-slope types) and assessed three radiological parameters related to the sigmoid notch (namely, the radius curvature, depth, and version angle). The univariate and multivariate analyses were applied to test the relationship of radiological parameters and sigmoid notch types with the TFCC foveal tear. Using receiver operating characteristic curves, a cut-off for any statistically significant variables was calculated. Compared with the control group, the proportion of flat-face sigmoid notch type was greater in the patient group. There were negative association between depth, version angle of sigmoid notch and TFCC foveal injury.