Trabecular bone score (TBS) is obtained through the analysis of lumbar spine dual X-ray absorptiometry (DXA) images and allows an indirect assessment of skeletal microarchitecture (MA).  Biochemical analyses and DXA scans with TBS evaluation were performed before and at one year and three years after surgery.



DXA
The fracture risk, calculated by FRAX® (University of Sheffield, Sheffield, UK), with and without adjustment by TBS, was low.



FRAX