Patella fractures are associated with bone fragility – a retrospective study
Authors' conclusion
In summary, women with patella fracture had Tb deterioration by HR-pQCT associated with lower tibial mechanical competence that was similar to those with fragility forearm fracture, a more universally accepted "osteoporotic" fracture.
Study context
- Population
- Elderly women from a multiethnic population-based study in New York City
- Participants
- 27 / 384 / 28
- Exposure
- Women with patella fracture vs no fracture vs fragility forearm fracture
- Patella fracturen = 27
- No fracturen = 384reference
- Forearm fracturen = 28
- Outcome
- Bone mineral density (BMD) and bone microstructure by DXA and HR-pQCT
Methodological detailsmultiethnic population-based
- Multiethnic population-based
Main finding
As reported in the abstract
- Patella fracture vs no fracture: lower areal BMD (aBMD) by DXA only at total hip (p=.007), adjusted for age, BMI, race and ethnicity
- 6.5%
- Fracture groups vs no fracture: adjusted radial total and Tb volumetric BMD (vBMD) and Tb number lower (all p<.05)
- 10%-24%
- Fracture groups vs no fracture: radial Tb spacing higher (all p<.05)
- 12-23%
- Forearm (not patella) fracture vs no fracture: lower radial stiffness (p<.0001); also lower adjusted radial cortical (Ct) area and vBMD
- 21.8%
- Fracture groups vs no fracture: lower tibial total and Tb vBMD (all p<.05)
- 9.3%-15.7%
- Forearm fracture vs no fracture: lower tibial Ct area and thickness
- 10.9, and 14.7%
- Tibial stiffness lower vs no fracture: patella fracture (all p<.05)
- 9.9%
- Tibial stiffness lower vs no fracture: forearm fracture (all p<.05)
- 12%
- Patella vs forearm fracture: higher radial Tb heterogeneity by high resolution peripheral quantitative computed tomography (HR-pQCT) (p<.05)
- 36%
Observational data: associations, not effects.
Original publication
Patella fractures are associated with bone fragility – a retrospective study. J Bone Miner Res. Published 10 October 2024. doi:10.
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