The Journal of hand surgery
-
Fully threaded, variable-pitch, headless screws are used in many settings in surgery and have been extensively studied in this context, especially in regard to scaphoid fractures. However, it is not well understood how screw parameters such as diameter, length, and pitch variation, as well as technique parameters such as depth of drilling, affect gap closure. ⋯ We describe characteristics of variable-pitch headless screws that may assist the surgeon in screw choice and method of use.