Abstract: A modular system for a surgical device is provided. The modular system includes an adjustable-length portion having a first end and a second end, the first end spaced apart from the second end along a length of the adjustable-length portion, and the adjustable-length portion including an actuator configured to be activated to change the length of the adjustable-length portion. The adjustable-length portion is configured to be secured to one or more bones. The modular system further includes a first fixed-length portion configured to attach to the first end of the adjustable-length portion to form a first surgical device.