Systemic sclerosis & Raynaud's

Hand bone densitometry associates with nailfold capillaroscopic severity of microvascular damage in systemic sclerosis: a pilot study

Clin Exp RheumatolPublished Cross-sectional study

Authors' conclusion

For the first time, hand local bone status was found significantly associated with hand/fingers NVC microvascular damage in SSc patients, emphasising the effects of capillary loss/local hypoxia on the observed bone loss.

Study context

Population
Systemic sclerosis (SSc) patients (2013 ACR/EULAR criteria; mean age 61±14 years, 94% women, 47% dcSSc) and age-matched healthy subjects (HS)47% 13
Participants
32 vs 27
Exposure
SSc patients vs age-matched healthy subjects; hand bone mineral density (BMD) vs nailfold videocapillaroscopy (NVC) capillary status
  • SScn = 32
  • HSn = 27reference
Outcome
Association of hand BMD (dedicated hand software) with NVC capillary loss
Methodological detailspilot study, age-matched healthy subjects, multivariable regression
  • Pilot study
  • Age-matched healthy subjects
  • Multivariable regression

Main finding

As reported in the abstract

Hand BMD vs capillary loss (multiple regression)
Left-hand BMD significantly associated with capillary loss, adjusted for age, sex, BMI, osteoporosis history, grip strength, immunosuppressive therapy and bone-specific treatments
p=0.02
Right-hand BMD significantly associated with capillary loss (same adjustment)
p=0.03
Left-hand BMD correlation with capillaries per linear mm
r=0.6893, p<0.001
Right-hand BMD correlation with capillaries per linear mm
r=0.45, p=0.03

Observational data: associations, not effects.

Further findings

Left-hand BMD vs "late" NVC scleroderma pattern

Significant negative correlation
r=−0.5752, p=0.001

Left-hand BMD vs dcSSc and modified Rodnan skin score

Negative correlation with presence of dcSSc
r=−0.3836, p=0.036
Negative correlation with modified Rodnan skin score
r=−0.5811, p=0.002

Hand BMD, SSc vs HS

SSc patients had significantly lower hand BMD than HS, adjusted for age, sex, BMI and history of osteoporosis

Original publication

Hand bone densitometry associates with nailfold capillaroscopic severity of microvascular damage in systemic sclerosis: a pilot study. Clin Exp Rheumatol. Published 29 September 2025. doi:10.55563/clinexprheumatol/zr2o21

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