Agreement between radiofrequency echographic multispectrometry and dual-energy X-ray absorptiometry for assessing bone mineral density in older patients during the acute phase following hip fracture
Authors' conclusion
REMS demonstrated moderate correlation but limited absolute agreement with DXA. It may be useful as a complementary tool after a hip fracture, but its values should not be considered directly interchangeable with DXA.
Study context
- Population
- Consecutive patients aged ≥50 who underwent hip fracture surgery between October 1 and December 31, 2025enrolled patients, 51 eligible for lumbar spine analysis and 76 for femoral neck analysis · lumbar spine analysis 51 · femoral neck analysis 76
- Participants
- 86 patients
- Exposure
- Agreement between radiofrequency echographic multispectrometry (REMS) and DXA for bone mineral density (BMD) assessment during the acute postoperative phase
- Outcome
- Correlation of REMS-BMD with DXA-BMD
- Follow-up
- Postoperative day 7
Methodological detailsconsecutive patients, DXA and REMS performed sequentially on postoperative day 7
- Consecutive patients
- DXA and REMS performed sequentially on postoperative day 7
Main finding
As reported in the abstract
- Lumbar spine r
- 0.673
- Femoral neck r
- 0.636
- p (both)
- p < 0.001
Observational data: associations, not effects.
Further findings
Mean bias (Bland-Altman) · postoperative day 7
g/cm²
- Lumbar spine mean bias
- −0.080
- Femoral neck mean bias
- −0.037
- Wide limits of agreement and negative proportional bias at both sites
REMS vs DXA values
- REMS values were significantly lower than DXA values
Additional variance in DXA-BMD explained by REMS-BMD (age/weight-adjusted hierarchical regression, exploratory)
- Lumbar spine ΔR²
- 0.0778, p = 0.011
- Femoral neck ΔR²
- 0.0044, p = 0.465
- Exploratory
T-score category agreement
- Limited despite high crude agreement at the femoral neck
Original publication
Agreement between radiofrequency echographic multispectrometry and dual-energy X-ray absorptiometry for assessing bone mineral density in older patients during the acute phase following hip fracture. Osteoporos Int. Published 24 October 2026. doi:10.
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