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- W2469750005 abstract "The quality of bone in the skeleton depends on the amount of bone, geometry, microarchitecture and material properties, and the molecular and cellular regulation of bone turnover and repair. This study aimed to identify material and structural factors that alter in fragility hip fracture patients treated with antiresorption therapies (FxAr) compared to fragility hip fracture patients not on treatment (Fx). Bone from the intertrochanteric site, femoral head (FH: FxAr = 5, Fx = 8), compression screw cores and box chisel were obtained from patients undergoing hemi-arthroplasty surgery, FxAr (6f, 2m, mean 79 and range [64–89] years), and Fx (7f, 1m, age 85 [75–93] years). Control bone was obtained at autopsy (9f, 4m, 77 [65–88] years). Treated patients were on various bisphosphonates. Samples were resin-embedded, for quantitative backscattered electron imaging of the degree of mineralisation and assessment of bone architecture. Trabecular bone volume fraction (BV/TV) and architectural parameters were not significantly different between FxAr and Fx groups. Both groups showed normal distributions of weight (wt) % Ca; however, the FxAr was less mineralised than the Fx and the control group (mean wt % Ca: FxAr = 24.3%, Fx = 24.8%, Control = 24.9%). When comparing the FH specimens only, we found that BV/TV in the FxAr was greater than the Fx group (18% vs 15%). All other parameters were not significantly different. In addition, the mineralisation was greater in the FxAr group compared to the Fx group (25.5 % vs 25.0%) but was not significantly different. Collectively, these data suggest the effect on bone of antiresorptives may be different for patients on antiresorptive treatment that do not subsequently fracture. Assessment of bone material property data together with other bone quality measures may hold the key to better understanding of antiresorptive treatment efficacy." @default.
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- W2469750005 date "2012-05-01" @default.
- W2469750005 modified "2023-09-27" @default.
- W2469750005 title "FEMORAL FRAGILITY FRACTURE: BONE QUALITY OF TREATED VS NON-TREATED OSTEOPOROTIC PATIENTS" @default.
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