Synthes 14.5 mm Outer Protection Sleeve for Suprapatellar || Synthes 14.5 mm Outer Protection Sleeve for Suprapatellar is used as part of the Synthes Tibial Nail System EX to stabilize fractures of the proximal and distal tibia and the tibia shaft, open and closed tibia shaft fractures, certain pre- and post- isthmic fractures, and tibial malunions and non-unions.