Effect of Intramedullary Rod Diameter on a String of Pearls Plate-Rod Construct in Mediolateral Bending: An In Vitro Mechanical Study.

Objective: To evaluate the effect of intramedullary rod (IMR) diameter on the mechanical behavior of string of pearls (SOP) plate-rod constructs.

Study Design: In vitro mechanical study.

Sample Population: Synthetic bone models (n = 24).

Effect of screw type and distribution on the torsional stability of 3.5 mm string of pearls locking plate constructs.

Objective: To evaluate the effects of screw type (mono- [M] versus bicortical [B]), number, and position on torsional stability of String of Pearls (SOP) locking plate constructs.

Study Design: In vitro mechanical study.

Methods: SOP plates (n = 32) were applied to bone models and divided into 8 groups named according to screw type (M or B) and position in each fragment relative to the fracture gap starting at the outermost plate hole.

Effect of screw insertion torque on mechanical properties of four locking systems.

Objective: To evaluate the effect of screw insertion torque on the mechanical properties of four 3.5 mm locking systems: New Generation Devices (NGD), Securos (PAX), Synthes (SYN), and Veterinary Orthopedic Implants (VOI).

Study Design: In vitro mechanical study.