ArticleArchives of osteoporosis2026
Association between lumbar-spine trabecular bone score and radiographic severity of low-energy Colles-type distal radius fractures in women aged 50 years or older.
Article in Archives of osteoporosis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We assessed the association of TBS with radiographic severity of Colles-type DRFs in female patients aged ≥ 50 years. The results indicated a significantly higher incidence of intra-articular DRFs and DUFs in low-TBS group, independent of displacement. Deteriorated bone microarchitecture may be associated with the severity of low-energy osteoporotic DRFs. PURPOSE: This study investigated the effect of the trabecular bone score (TBS), which reflects bone microarchitecture, on the radiographic severity of Colles-type distal radius fractures (DRFs).
methods104 patients aged ≥ 50 years with Colles-type DRFs underwent TBS measurements using lumbar spine dual-energy X-ray absorptiometry (DXA) data. Among them, 83 were included after excluding 21 patients with high-energy injuries. Low-TBS was defined as 1.230 or less, on the basis of Japanese reference data. Radiographic fracture severity [presence or absence of intra-articular fractures according to the AO classification and complications of distal ulna fractures (DUFs)] and fracture-displacement parameters (radial inclination, ulnar variance, and palmar tilt) were compared between the low-TBS and non-low-TBS groups. Factors affecting fracture severity were evaluated using the Firth logistic regression model.
resultsThe mean TBS was 1.299 ± 0.084, with 16/83 (19.3%) and 67/83 (80.7%) patients in the low- and non-low-TBS groups, respectively. The incidence of intra-articular fractures (AO type C) was significantly higher in the low-TBS group (93.8%) than non-low-TBS group (35.8%). The incidence of DUFs was significantly higher in the low-TBS group (87.5%) than non-low-TBS group (49.3%). The prevalence of multi-fragmentary fractures (AO type C3) in the low-TBS group (53.3%) was significantly higher than non-low-TBS group (20.8%). No significant differences were observed in the fracture-displacement parameters. Multivariate analysis confirmed that a low TBS was an independent predictor of intra-articular fractures.
conclusionThese findings suggest that deterioration of bone microarchitecture may increase the severity of low-energy osteoporotic DRFs, independent of fracture displacement.
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