Hip fractures as well as coxarthrosis are conditions that are becoming more common in everyday orthopedic practice. With the aging of the world's population, there is an increasing need for partial (HA) or total hip arthroplasty (THA). No elective procedure is as important to quality of life as total hip arthroplasty, and partial hip arthroplasty is a method of treatment in elder population who suffered fracture of the femoral neck. There are several hip approaches that can be used for arthroplasty. Hip dislocation is a serious complication after hip arthroplasty and occurs somewhat more frequently when the posterior hip approach is used. The aim of this study is to show that the piriformis sparing technique gives better results in terms of reducing the frequency of dislocations in the early postoperative period (one year). We operated od 249 patients, and after follow-up that lasted from 13 to 22 months we had four dislocations, three in patient with THA(0.021) and one after HA(0.009). Preservation of the piriformis tendon is a minor modification in the operative technique that can lead to a great benefit in the quality of treatment and a reduced risk of complications.

Any fracture of the femoral shaft presents a challenge to the orthopedic surgeon. Femoral fractures most often occur within polytrauma, by forces of high intensity as is the case with traffic accidents. There are two methods to treat with internal fracture fixation, intra and extra medullary fixation. Both treatments have their advantages and disadvantages and it is necessary to make a good preoperative plan. We present the case of a 23-year-old man who suffered a femoral shaft fracture as a driver in a car accident. He was initially surgically treated with orthopedic repositioning and internal, extramedullary fixation. After 18 months, bending of the osteosynthetic material and dislocation of the fragments with varus and recurvatum were verified. Oligotrophic pseudoarthrosis was also present. Reintervention and fixation with interlocking nail was performed. The weight bearing is allowed after two weeks. After 3 months, patient has full range of motion and there is no palpatory painful sensitivity. Intramedullary fixation is the method of choice for fractures of the femur, especially when there is no comminution and in cases of open fractures of the first and second degree. Rotation of fragments is locked, physical rehabilitation is faster and there is less risk of mal union.

Injury of the deltoid ligament as a component of the lateral malleolus fractures is caused by the fact rotational forces during the support. The aim of this research is to examine the functional results of the patient who had undergone suture of the deltoid ligament and osteosynthesis of fracture of the lateral malleolus. In a retrospective study the analysis included a series of 45 patients.The diagnosis of rupture of the deltoid ligament is made based on physical findings islands and tenderness in the region of the deltoid ligament and roentgenographic confirmation width of the medial joint space > 4 mm. There is a high degree of correlation with the 25 (55.55%) patients between excellent functional outcomes of treatment calculated by Gregory[11] score and great roentgenographic findings by Konrath score[12]. The total clinical scores of subjective and objective clinical assessment by Gregory of a sample of patients, characterized by an excellent, even with the 40 (88.89%) patients. In the literature there is no agreement on the method of treatment of the deltoid ligament rupture associated with fractures of the lateral malleolus. Based on theoretical considerations, a number of authors advocate surgical treatment discontinued deltoid ligament. In our series, using suture of the deltoid ligament and osteosynthesis of the lateral malleolus, the best results are obtained with the PAB fracture, lower percentages of excellent results is with the SER fractures. The worst result was obtained with the PER type fracture. Anatomical and functional integrity of all parts of the talocrural joint that allows harmony of movement and stability is achieved with osteosynthesis of lateral malleolus and suture of the deltoid ligament.