| Summary: | Unstable fractures of cruris are all those fractures which cannot hold satisfactory position even after orthopedic reposition and imobilization.Bone fragments or fractures which redislocate and whithin 7 days after primary well done reposition and adeqate imobilization are also unstable fractures. These fractures can be treated by orthopedic repozition, by transosal traction through calcaneus or through supramalleolar area.These fractures can also be treated surgically by internal or by external fixation. The safest operative method today is external fixation. Using of Mitkovic external flxator this method minimally traumatizes bone and soft tisue of cruris,the operation is not time consuming and complications as infection and nonunion aresignificantly more rare in comparison to internal fixation. External fixation is minimaly invasive method, preserving both periostal and intramedular blood circulation. Mitkovic system also provides biological conditions, which are very similar to biomechanical features of natural tibia and probably it is one of important factor for qicker fracture healing with big periostal callus fortnation.This external flxation system has additional advantages in comparison to other existing devices, especialy in regard of simplicity of application and possibility of accurate closed intraoperative and postoperative fracture reduction.
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