Background: Fracture of the clavicle is common, accounting for 5 to 12% of all fractures. About 80 to 85% of these fractures are in the middle third of the bone. Fracture of clavicle are commonly seen by a fall on an outstretched hand or by direct injury. Clavicle fractures are common injuries in young active individuals especially those who participate in activities and sports where high speed falls or violent collisions are frequent and account for 2.6% of all fractures. The majority of clavicular fractures 80-85% occur in midshaft of the bone, where the typical compressive forces applied to the shoulder and the narrow cross section of the bone combine and result in bony failure1 . Displaced mid shaft clavicle fractures are common and are generally treated non-operatively. Non-operative treatment of these fractures with axial shortening is associated with non-union, delayed union, and mal-union & Other complications are severe pain, neurological complications, loss of shoulder function and protuberant callus forming swelling and stretching of skin which is cosmetically unacceptable1 Materials and Method: This study was carried out at the Department of Orthopaedics, Navodaya Medical College, Raichur over a period of 2 years. In this study 30 patients (21 male,9 females) with displaced mid clavicular simple fracture treated with titanium elastic nailing system Functional outcome was assessed as per constant & murley and cologne clavicle score. Results: A total of thirty patients were evaluated in our study of which there were 23 males and 7 females. Out of all 30 patients, majority 23 cases (76.6%) had an excellent outcome., 6 cases (20%) Good outcome and only 1 patients (3.3%) is Fair outcome. Not a single patient had poor outcome according to constant & murley and cologne clavicle score. Conclusion: Displaced Mid clavicular fracture treated with Titanium elastic nail (TENS) is an effective mode of treatment to restore the function in adult patients, consistently providing excellent results with minimal complications and is a safe option in treating clavicle fracture with good recovery despite, patients having several associated injuries. Key words: Midshaft clavicle fracture, clavicle fracture fixation, Titanium elastic nailing system, intramedullary clavicle nailing, closed reduction clavicle