Background: Olecranon fractures are one of the common fractures around the elbow, they constitute around 37% of all fractures occurring around the elbow joint. Olecranon fractures are common and account for 10% of upper extremity injuries. Simple displaced transverse fractures account for approximately 85% of all adult fractures. These fractures are traditionally managed operatively with operatively with open reduction and internal fixation using tension band wiring. Open reduction internal fixation with plate is advocated in the presence of comminution or fracture dislocation Objective: to compare the functional outcome between tension band wiring versus plating in olecranon fractures