Using a modified Pauwels method to predict the outcome of XXXX in relatively young @entity1 .

@entity1 @entity2249 @entity174 @entity2530
BACKGROUND: Pauwels classification has long been used in @entity2249 to measure the inclination of the @entity174 line and is still widely used. In recent years, however, some studies have contested the reliability of this measurement method. This study investigates modified measurement method to assess the inclination angle with assisted parameters to evaluate the correlation between the different angles and the incidences of loss of reduction, nonunion and @entity2530 . @entity1 AND METHODS: A retrospective study was conducted to analyse the clinical data of 209 relatively young @entity1 (between 20 and 60 years old) with intracapsular @entity2249 fixed by inverted triangular screws between January 2004 and December 2010, including 111 males and 98 females, with an average age of 47.08  9.93 years. Using the modified measurement method, the pre-operative inclination angles of @entity1 with intracapsular @entity2249 were analyzed. The measured angles were classified into three types: type I, <30 degrees; type II, 30-50 degrees; and type III, >50 degrees. RESULTS: With regard to loss of reduction, nonunion and @entity2530 , there were no significant differences with respect to age, sex and @entity174 side. However, there were significant differences with respect to @entity174 type, reduction quality and different modified Pauwels types. In the multiple regression analysis, the factors associated with loss of reduction were the @entity174 type (odds ratio [OR]=7.22), reduction quality (anatomic vs unacceptable reduction, OR=0.11; acceptable vs unacceptable reduction, OR=0.23), and modified Pauwels type (type II vs type III, OR=0.36). The factors associated with @entity174 nonunion were the @entity174 type (OR=9.43), reduction quality (acceptable vs unacceptable reduction, OR=0.17) and modified Pauwels type (type II vs type III, OR=0.22). And the factors associated with @entity2530 were the modified Pauwels type (type I vs type III, OR=0.15; type II vs type III, OR=0.36). CONCLUSIONS: A displaced @entity174 , poor reduction quality and high modified Pauwels type are noted risk factors for loss of reduction and @entity174 nonunion in the post-operative follow up of intracapsular @entity2249 . The modified Pauwels type is also noted a risk factor for @entity2530 . Thus, this modified method is a useful tool for correcting the deficiencies of traditional Pauwels classification and predicting the outcome of @entity2249 .
