The dorr type and cortical thickness index just below the lesser trochanter and its comparison with cortical thickness index 10 centimeter below the tip of the lesser trochanter

Abstract

Quality of the bone before surgery determine the choice of the appropriate prosthesis and the surgical approach and the result of total hip arthroplasty . Proximal femur morphology determines the choice of cemented or uncemented Total Hip Arthroplasty (THA), and Dorr classification is widely used for this purpose. Materials and Methods: In this study, 100 patients over the age of 40 who had referred to the emergency department of Tabriz shohada Hospital for any reason or were hospitalized in the wards of this hospital and had a true pelvic AP x-ray with proximal femur were included in this study and Dorr classification and mean cortical thickness index just below the lesser trochanter and 10 cm below the lesser trochanter has measured. Results: In this study, 100 patients were studied and according to the results, 49 patients (49%) were female and 51 patients (51%) were male. According to the results, 17 patients (17%) were type A, 64 patients (64%) were type B and 19 patients (19%) were type C according to Dorr classification. Dorr classification was significantly different in men and women and type C was higher in women than men. Also, the mean cortical thickness index was significantly related to gender. The mean cortical thickness index was significantly correlated just below the trochanter and 10 cm below the trochanter.