Background: fracture of the distal radius is the most common type of fracture in the upper extremity. Because the radius plays a fundamental role in the stability of the wrist joint, preservation of ligamentous function of the wrist and the biomechanics of radiocarpal and radioulnar joints, anatomical reduction and correction of articular surface incongruity decreases the potential of degeneration and accelerates post-injury rehabilitation. Objective: the aim of this study is targeting fixation of ulnar styloid fracture associated with distal radius fracture by K wires" Tension Band" and detecting the effect of these fractures on final wrist outcome. Patients and Methods: ten cases with fracture of ulnar styloid were managed over the last year from July 2017 to march 2018. Case selection was according to: 1- Base fracture of ulnar styloid (Type 2). 2- Involvement more than 50% of the height of ulnar styloid. Results: our study showed that one patient developed non-union, one patient developed infection, two patients with injury to dorsal cutaneous branch of ulnar nerve and one patient developed DRUJ instability. According to Mayo Clinic Wrist Score; one patient achieved excellent Mayo Score, two with good score, five with satisfactory score and two with poor score. Conclusion: although Open reduction and internal fixation is recommended in case of base fracture if there is displacement more than 2mm or if there is associated DRUJ instability as it is associated with high union rate and less rate of DRUJ instability