Jang CY, Bang SH, Kim WH, et al. - Researchers determined the stress around nails and cortical bones in subtrochanteric (ST) fractures fixed using short cephalomedullary nails (CMNs) in finite element models. They also investigated the suitable short CMN type for various fracture levels. The 3 types of short CMNs that were utilized were: type A, 170 mm in length with 1 distal locking screw; type B, 200 mm in length and 1 distal screw; and type C, 200 mm in length and 2 distal screws. Under the assumptions of anatomical reduction and fracture gap ≤ 1 mm, the possible use of short CMNs 170 or 200 mm in length with 1 distal screw in a limited manner in high ST transverse fractures was suggested. Meanwhile, most of ST transverse fractures may be treated with short CMN 200 mm in length with 2 distal screws irrespective of the fracture level under the same set of assumptions.