Erratum to: The utility of clinical features for distinguishing subchondral insufficiency fracture from osteonecrosis of the femoral head

The author would like to correct the error in the publication of the original article. The corrected details are given below for your reading.

Results The age, proportion of females, the rate of a history of neither corticosteroid intake nor alcohol abuse, and the presence of vertebral compression fracture in subchondral insufficiency fracture were significantly higher than those with osteonecrosis (p = 0.0001, 0.0212, 0.0001, and 0.0040, respectively). ORs for SIF were 12.01 [95 % confidence intervals (CI) 1.35–106.80] and 7.29 (95 % CI 1.91–27.86), if the patient were female and 70 years of age or older, respectively. In addition, OR for SIF was extremely high (OR 56.01, 95 % CI 6.12–512.87) compared to ON, if the patients have a history of neither corticosteroid intake nor alcohol abuse.

There was a significant difference in the rate of a history of neither corticosteroid intake nor alcohol abuse between SIF and ON patients (p = 0.0001).

Furthermore, OR for SIF was extremely high (OR 56.01, 95 % CI 6.12–512.87) compared to ON, if the patients have a history of neither corticosteroid intake nor alcohol abuse (Table 2).

This study first showed the utility of clinical features for the differentiation of SIF from ON, when the patients have a history of neither corticosteroid intake nor alcohol abuse OR for SIF was extremely high (56.01).