title: Influence of bone mineral density and hip geometry on the different types of hip fracture.
abstract: The aim of this study was to assess the influence of bone mineral density and hip geometry on the fragility fracture of femoral neck and trochanteric region. There were 95 menopausal females of age ≥ 50 years with fragility fracture of hip, including 55 cases of femoral neck fracture and 40 cases of trochanteric fracture. Another 63 non-fractured females with normal bone mineral density (BMD) were chosen as control. BMD, hip axis length, neck-shaft angle and structural parameters including cross surface area, cortical thickness and buckling ratio were detected and compared. Compared with control group, the patients with femoral neck fracture or trochanteric fractures had significantly lower BMD of femoral neck, as well as lower cross surface area and cortical thickness and higher buckling ratio in femoral neck and trochanteric region. There were no significant differences of BMD and structural parameters in the femoral neck fracture group and intertrochanteric fracture group. Hip axis length and neck-shaft angle were not significantly different among three groups. The significant changes of BMD and proximal femur geometry were present in the fragility fracture of femoral neck and trochanteric region. The different types of hip fractures cannot be explained by these changes.
authors.affiliation: Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, China. doctorlyz@sina.com.
authors.forename: Yizhong
authors.initials: Y
authors.lastname: Li
authors.forename: Jinkuang
authors.initials: J
authors.lastname: Lin
authors.forename: Siqing
authors.initials: S
authors.lastname: Cai
authors.forename: Lisheng
authors.initials: L
authors.lastname: Yan
authors.forename: Yuancheng
authors.initials: Y
authors.lastname: Pan
authors.forename: Xuedong
authors.initials: X
authors.lastname: Yao
authors.forename: Huafeng
authors.initials: H
authors.lastname: Zhuang
authors.forename: Peiwen
authors.initials: P
authors.lastname: Wang
authors.forename: Yanjun
authors.initials: Y
authors.lastname: Zeng
mesh_terms: D015502:Absorptiometry, Photon; D000368:Aged; D000369:Aged, 80 and over; D015519:Bone Density; D005260:Female; D005265:Femoral Neck Fractures / Q000175:diagnosis*; D005269:Femur / Q000473:pathology*; D005272:Femur Neck / Q000033:anatomy & histology; D006615:Hip / Q000033:anatomy & histology; D006620:Hip Fractures / Q000378:metabolism*; D006801:Humans; D008875:Middle Aged; D015663:Osteoporosis, Postmenopausal / Q000150:complications; D058866:Osteoporotic Fractures / Q000175:diagnosis*; D012307:Risk Factors