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Ulnar variance and age

P L Sanderson1, I C Cameron, G R Holt

  • 1Royal Hallamshire Hospital, Sheffield, UK.

Journal of Hand Surgery (Edinburgh, Scotland)
|February 1, 1997
PubMed
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Ulnar variance, a measurement of the ulna bone in the wrist, significantly decreases with age in both men and women. This study analyzed 1,023 wrist radiographs to observe this age-related change in ulnar negative variance.

Area of Science:

  • Orthopedics
  • Radiology
  • Gerontology

Background:

  • Ulnar variance is a radiographic measurement of the distal ulna relative to the distal radius.
  • Standardized radiographic techniques are crucial for accurate ulnar variance assessment.
  • Age-related changes in bone morphology are well-documented, but specific changes in ulnar variance require further investigation.

Purpose of the Study:

  • To determine the relationship between age and ulnar variance in a large cohort.
  • To investigate potential sex-based differences in age-related ulnar variance changes.
  • To provide data for understanding normal wrist aging.

Main Methods:

  • Retrospective analysis of 1,023 posteroanterior wrist radiographs.
  • Standardized imaging protocol ensuring consistent wrist positioning.

Related Experiment Videos

  • Measurement of ulnar variance, categorizing it as negative, zero, or positive.

    • Main Results:

    • A statistically significant decrease in ulnar negative variance was observed with increasing age in both male and female participants.
    • No significant sex-specific differences in the trend of decreasing ulnar negative variance with age were noted.
    • The study established a normative range for ulnar variance across a wide age spectrum.

    Conclusions:

    • Ulnar negative variance demonstrates a consistent decline throughout adulthood.
    • Aging appears to be a significant factor influencing distal ulnar length relative to the radius.
    • Further research is warranted to elucidate the underlying physiological mechanisms driving this age-related change.