Comment on “Stiffness degree of ankle range of motion in diabetic patients with atypical amputation”

Abstract

LETTER TO THE EDITOR Dear Editor,We are more than honored to read the high-level articles published by Simón-Pérez et al. 1 Their study found that feet with atypical distal amputations feature the classification of dorsal flexing movement in the ankle lower than the contralateral foot. However, as far as I am concerned, there are still some issues worth discussing with the author.First, the author did not explain what statistical methods were used in the method section. We do not know what the p-value is which indicates that the result is significant. In addition, both type 1 and type 2 diabetes were included in the sample. We think that author should further discuss in-depth the effects of two different types of diabetes on the stiffness of ankle joints. And the sample size of the patients with diabetes 1 was too small.Second, the author collected the general demographic characteristics of the sample in the study. This is worth approving. However, the author should then analyze the relativity between age, gender, weight, size, and body mass index (BMI) and stiffness degree of ankle joint activity in diabetic patients. In contrast, the author stated that they collected the general demographic characteristic information of size. But we do not find