Tibial and open smash sexual fracture is fast 11 months, general now situation is OK still, when can the armor plate in general situation bone do operation take out excuse me?

• 胫骨开放粉碎性骨折快11个月了,现在一般情况都还可以,请问一般情况骨头里的钢板何时可以做手术去掉？