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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
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.
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.
- 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.