The tibial and femoral shaft fractures representing prototyp in orthopedic traumatology and great problem for resolving. The speed of limb recovering functionality after surgery is important, and often desicisive for result of treatment. Place of external fixation (EF) in surgical treatment of femurs in DCOS (damage control orthopedic surgery), cominutions of femoral shaft and open fractures, rarely as definitive method. EF in treatment of tibial shaft fractures today take a place as a definitive method like intramedulary nailing. On department of orthopedic surgery in HC Kosovska Mitrovica we examined quality of life and speed of lower limb recovering functionality on 70 patients treated with EF tip Mitkovic as a definitive curative method. The time of achieving early function of lower limbs we divided on 4 levels, and writed time when patients achieved level 3 and 4. Also this timing we compared with middle time of healing tibial or femoral shaft fractures (golden standard) .We examined quality of life with EuroQol 5D evaluation system. 90% of our patient in period 8 to 12 weeks achieved level 3 and 4. There statisticaly significant diference between examined gropu and golden standard, p<0,05. We concluded that EF tip Mitkovic as definiyive curative method improved the speed of lower limbs recovering functionality. Quality of life is very high, 84 points. The number of complications where expected and in proportion with literatures data.