Following xray is of 39 years old patient who came with history of tibia fracture which was fixed with plating about 4 months ago.

AP and lateral views of fracture was done

Non Union Fracture of Tibia With Narrow Dynamic Compression Plate

As seen in the xray there is non union of the tibia fracture and the implant is also inadequate. If you look carefully, the implant used here is narrow dynamic compression plate whereas in adult tibia recommended implant for plating is broad dynamic compression plate.

Moreover, only, four cortices have been used in proximal fragment of the fracture [There are only two screws] instead of recommended six four cortices [six screws].