Background: Olecranon fractures require open reduction and internal fixation that require anatomical reduction and early mobilization. Many methods have been described for fixation of olecranon fractures including the tension band wiring (TBW) which was the standard treatment. The aim of the present study was to comparing crossing screws fixation to the gold standard, TBW in treating isolated non-comminuted olecranon fractures by functional results as well as to assess the complications and secondary procedures. Patients and Methods: A prospective comparative study concluded 18 patients with displaced olecranon fracture Mayo's type IIA were incorporated in an interventional prospective comparative study. Patients were divided equally into two groups according to the method of treatment. A detailed history, clinical and radiological assessment were performed. The quality of the reduction, union and position of the implant will be measured. The elbow's range of motion (ROM) was measured. The functional evaluation of the surgically treated elbow will be based on the Mayo Elbow Performance Score (MEPS). At the end of the follow-up was done for one year. Results: the mean age was distributed as 30.33±9.83 and 30.88±10.05 respectively between groups with no significant difference between groups, regard sex there was no significant difference between groups. There was no significant difference detected between groups regard side. No significant difference regard follows up duration. Time of union was significantly shorter among group B. No significant difference between groups detected regard any items. Conclusion: Crossing screws for olecranon fractures provide a safe mini-invasive, that enables early healing with excellent functional outcomes and limited complications that appear to be mechanically, biologically and functionally superior to TBW.