Analysis Of The Efficacy Of ESWT Treatment Of Avascular Necrosis

Objective:Bone destruction and certain anatomical parts of bone damage occurs is defined as osteonecrosis, especially in the femoral head necrosis occurred, called avascular necrosis of the femoral head, femoral head by a variety of potential factors caused supply of bone nourish blood vessels are severely damaged, the exact pathogenesis of osteonecrosis and pathological process of the present study is not clear. Epidemiological Survey: In the United States, the annual incidence of about 1-2 million people; in our country no specific statistics, but researchers have estimated that China may reach 4-5 million per year in the incidence of people[1].Many conservative treatment methods, but found that the effect is not obvious after treatment. This paper as a starting point, by observing the different stages of extracorporeal shock wave therapy efficacy evaluation in avascular necrosis regard to validate extracorporeal shock wave therapy is a method of effective early ONFH.Methods:This retrospective analysis of the First Affiliated Hospital of Shanxi Medical University, diagnosed with avascular necrosis of Orthopedics treated 26 patients; aged 18 to 60 years, mean 43 years; duration of 3 months to 1 year. By imaging diagnosis of avascular necrosis in 26 patients(30 hips) in patients with extracorporeal shock wave therapy, the patient score by Harris to avascular necrosis of the efficacy assessment, and then through the first 30 hips in patients before and after treatment 6, 12 months divided into four groups, using ipsilateral hip Harris score was observed extracorporeal shock wave therapy at different stages of avascular necrosis regard; statistical analysis: Harris hip score evaluation data to x±s said using SPSS19.0 software package for statistical analysis, datausing repeated measures analysis of variance that P <0.05 was considered statistically significant.Results:Early treatment for patients with avascular necrosis was significantly better than in patients with late.Conclusions:1, extracorporeal shock wave therapy effective in patients with avascular necrosis; 2,early treatment of ischemic necrosis of the femoral head in patients with extracorporeal shock wave therapy significantly better than in patients with advanced, but the treatment mechanism is still very clear, remains to be determined; 3, early the use of extracorporeal shock wave therapy can delay the avascular necrosis, and reconstructing bone structure and improve joint function.