Günay, CüneydAtalar, HakanAltay, MuratYavuz, Osman YükselYildirim, Ahmet ÖzgürÖken, Fuad O.2025-10-242025-10-2420140001-6462https://hdl.handle.net/20.500.12899/3231The purpose of this retrospective study was to evaluate the effects of Dyna Locking Trochanteric (DLT) nail (U & I Corporation 529-1, Yonghyun-dong, Uijungbu Kyunggi-Do, Korea 480-050) in 31-A1 and 31-A2 intertrochanteric femur fractures. Eightyseven patients (63 female and 24 male, mean age 77 years) were treated. The mean duration of followup was 16.6 ± 3.1 months (range, 12-24 months). There were 36 cases of 31-A1 and 51 cases of 31-A2 fractures. The duration of surgery, fluoroscopy screening time, the blood loss, the hospital stay, the tip-apex distance were significantly less in the 31-A1 fracture group compared with the 31-A2 fracture group (p < 0.001). Cut-out was observed in 13 patients (14.9%) above 80 years old with 31-A2 fractures. Especially in elderly patients with unstable 31-A2 fractures, the wedge wing on the neck screw does not work properly. Therefore further biomechanical investigations and also prospective clinical studies with larger series are needed to improve the device. © 2014, Acta Orthopdica Belgica. © 2014 Elsevier B.V., All rights reserved.eninfo:eu-repo/semantics/closedAccessComplicationCutting outIntertrochanteric fracturesIntramedullary nailingOutcomesTip apex distanceReview Article8012633248730812-s2.0-84901438570Q3