Eight plate (Growth modulation)

The eight plate technique is otherwise known as growth modulation, because it controls the growth of limb after application on the bone. “guided growth” plate is a unique, figure-eight shaped device about the size of a paper clip that allows gradual correction of the deformity. The screws attaching the plate to the bone diverge like a hinge, decreasing the compression on the growth plate and allowing for increased flexibility. Flexibility is critical to proper correction because it decreases the chances that the screws will bend or break under the forces of bone growth. In addition, the growth plate restricts the bone growth to one side of the deformity, allowing the bone to gradually realign.

Casting is not required after hemi-epiphysiodesis surgery using a guided growth device; however, immediate weight bearing is encouraged. Depending on comfort level and physician recommendations, the majority of children who undergo guided growth plate surgery should be able to return to many of their normal activities within 2 to 3 weeks.