Analysis Of The Etiologies And Relevant Factors Of Total Hip Replacement In Hefei

BACKGROUND: The etiologies of total hip replacement are complex, and there are relationships between the causes, gender and age.OBJECTIVE To study the etiological composition of patients in Hefei with total hip replacement and its distribution in ages and genders,in order to improve the early screening and prevention of hip diseases and susceptible factors.METHODS A retrospective study was performed in 3 056 patients received total hip replacement in five hospitals in Hefei from January 2008 to December 2013. The patients were divided into 11 groups according to discharge diagnosis, and the constituent ratio of ages and genders was analyzed. The age and gender composition ratio were analyzed by chi-square test, P < 0.05, there was a significant difference.RESULTS 1763 patients were of hip fracture(56.78%), 545 of avascular necrosis of femoral head(17.55%), 461 of primary osteoarthritis(14.85%), 196 of developmental dysplasia of hip(6.31%), 35 of rheumatoid arthritis(1.13%),10 of ankylosing spondylitis(0.32%), 26 of traumatic arthritis(0.84%),12 of infective arthritis(0.39%), 4 of tumor of hip(0.13%), 3 of fibrous dysplasia of bone(0.097%),and 1 of Kaschin Beck disease(0.032%). The proportion of patients over 50 years old was obviously higher than that of the patients under age 50(including age 50;χ2= 12.7, P<0.05). The proportion of female patients was higher than that of the male patients(χ2=61.07,P<0.05).CONCLUSION The results showed that the etiologies of the patients received total hip replacement in five hospitals in Hefei were complex, the major causes were hip fracture, avascular necrosis of femoral head and primary osteoarthritis, the main patientswere over 50 years old, and the proportions of female patients was higher than that of the male patients.