Recently, a new telescoping dual lag screw nail system (Chimaera trochanteric nail—Orthofix®, Lewisville, Texas, USA) was designed to allow the lag screws to slide within a fixed barrel when compressed and to lock the lag screws to the nail without a set of screw.

2004年6月1日 · Intramedullary fixation devices with a single lag screw have been known to fail at the lag screw insertion hole. Using two lag screws is considered. It has also been proposed to use a slot in the nail for the upper lag screw to prevent the upper lag screw from sticking.

Our goal is to compare the healing time, Harris Hip Score, lower limb discrepancy as well as the sliding distance between two groups with a sliding and non-sliding lag screw pattern in the Gamma Nail among 31-A1 and A2 AO-OTA intertrochanteric fractures.

Background: Intramedullary fixation devices with a single lag screw have been known to fail at the lag screw insertion hole. Using two lag screws is considered. It has also been proposed to use a slot in the nail for the upper lag screw to prevent the upper lag screw from sticking.

To conclude the IM nail with two integrated lag screws showed the favorable outcomes in Asian patients with an intertrochanteric fracture even though several complications that were not previously reported with this nail were found in the present study.

Lag screw exchange is a efficacious method to address the mechanical irritation of laterally protruding lag screws following IT hip fracture, while also prophylaxing against subsequent femoral neck fractures. Keywords: lag screw, screw exchange, impingement, cephalomedullary nailing, intertrochanteric fracture.

Background/aim: This study aims to determine the safety and efficacy of integrated dual lag screw (IDL) cephalomedullary nails (CMN) when compared with single lag screw (SL) constructs, in the internal fixation of intertrochanteric femoral fractures.

2025年2月1日 · The equivalent stress of the intramedullary nail with one lag screw, in ascending order, was highest for reversed intertrochanteric (616.8 MPa), followed by subtrochanteric (236.5 MPa), neck (189 MPa), and lowest for intertrochanteric (132.9 MPa) fractures.

Currently, orthopedic surgeons use various fixation methods for intertrochanteric fractures like, intramedullary (IM) nailing or dynamic hip screws and plates. The intramedullary (IM) nail with two integrated lag screws has been used recently in intertrochanteric fractures to …

2000年11月1日 · Failures of proximal femoral nails that treat unstable femoral fractures have been reported. In this communication, a finite element model to include a proximal femoral nail within a fractured femur was used to carry out preliminary investigations into configurations of single or double lag screws.