What kind of spinal rod is used for scoliosis?

Metal alloy: In scoliosis surgery the rod is typically made of a metal alloy. Most commonly used are titanium and stainless steel. More recently cobalt come alloys are becoming popular.

There are multiple: There are several types of rods used in terms of there diameter & length as well as there composition. Stainless steel & titanium remain most common. There are rods used for anterior spine surgery & others used for a posterior approach. There are multiple types of manufactured systems for use in scoliosis surgery available including some under development such as memory & magnetic growing rods.