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Related Experiment Videos

Kienböck disease and negative ulnar variance

M Bonzar1, J C Firrell, M Hainer

  • 1Christine M. Kleinert Institute for Hand and Micro Surgery, Louisville, Kentucky 40202-3840, USA.

The Journal of Bone and Joint Surgery. American Volume
|September 8, 1998
PubMed
Summary

Negative ulnar variance is linked to Kienböck disease development. This study confirms the association, even when accounting for age, suggesting a significant relationship in wrist condition progression.

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Area of Science:

  • Orthopedics
  • Radiology
  • Hand Surgery

Background:

  • Kienböck disease is a condition affecting the lunate bone in the wrist.
  • Ulnar variance, the relative length of the ulna compared to the radius, is a potential risk factor.

Purpose of the Study:

  • To investigate the association between negative ulnar variance and Kienböck disease.
  • To determine if this relationship holds true after adjusting for confounding factors like age.

Main Methods:

  • Standardized wrist radiographs were used to measure ulnar variance.
  • A comparison was made between 44 patients with Kienböck disease and 99 control subjects.

Main Results:

  • An association was confirmed between negative ulnar variance and Kienböck disease.

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  • Age was found to influence negative ulnar variance in both patient and control groups.
  • The link between negative ulnar variance and Kienböck disease remained significant after age correction.

    • Conclusions:

    • Negative ulnar variance is a significant factor in the development of Kienböck disease.
    • The findings support the role of ulnar variance in wrist pathology.
    • Further research may explore therapeutic interventions targeting ulnar variance.