title: Association of microstructural and mechanical properties of cancellous bone and their fracture risk assessment tool scores.
abstract: This study is to investigate the association between fracture probabilities determined by using the fracture risk assessment tool (FRAX) and the microstructure and mechanical properties of femoral bone trabecula in osteoporosis (OP) and osteoarthritis (OA) patients with hip replacements. By using FRAX, we evaluated fracture risks of the 102 patients with bone replacements. Using micro CT scanning, we obtained the analysis parameters of microstructural properties of cancellous bone. Through morphometric observations, fatigue tests and compression tests, we obtained parameters of mechanical properties of cancellous bones. Relevant Pearson analysis was performed to investigate the association between the fracture probability and the microstructure and mechanical properties of femoral bone trabecula in patients. Fifteen risk factors in FRAX were compared between OP and OA patients. FRAX hip fracture risk score and major osteoporotic in OP and OA patients were significantly different. FRAX was associated with tissue bone mineral density and volumetric bone mineral density. Our study suggests that the probabilities of major osteoporotic and hip fracture using FRAX is associated with bone mass but not with micro bone quality.
authors.affiliation: Department of Emergency, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China ; Institute of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China.
authors.forename: Dengke
authors.initials: D
authors.lastname: Wu
authors.affiliation: Institute of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Orthopedics, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Tao
authors.affiliation: Institute of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China.
authors.forename: Ruchun
authors.initials: R
authors.lastname: Dai
authors.affiliation: Department of Orthopedics, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China.
authors.forename: Jiangdong
authors.initials: J
authors.lastname: Ni
authors.affiliation: Institute of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University 139 Renmin-Zhong Road, Changsha 410011, Hunan, China.
authors.forename: Eryuan
authors.initials: E
authors.lastname: Liao
keywords: Microstructural; cancellous bone; fracture risk assessment