Thesis or Dissertation Epidemiology of Kienböck’s Disease in Middle-aged and Elderly Japanese Women

辻本, 律

38 ( 1 )  , pp.e14 - e18 , 2016-03-18 , Slack Incorporated
ISSN:01477447
Description
Little research has been done on the prevalence of Kienbock’s disease, and there is no consensus on the relationship between Kienbock’s disease and negative ulnar variance. The goal of this cross-sectional study was to determine the prevalence of Kienbock’s disease in middle-aged and elderly Japanese women and to clarify the relationship between Kienbock’s disease and negative ulnar variance. The authors analyzed plain radiographs of both hands in women 40 years and older residing in the community to investigate the prevalence of Kienbock’s disease and the relationship between Kienbock’s disease and negative ulnar variance. Kienbock’s disease was seen in 7 of the 572 participants. In the group with Kienbock’s disease, ulnar variance did not differ significantly between affected (0.3 mm; SD, 1.5) and unaffected (0.3 mm; SD, 1.0; P=.285) sides. No significant difference was seen in ulnar variance values between the affected side in the group with Kienbock’s disease and the normal group (P=.118). The number or proportion of participants with negative ulnar variance did not differ significantly between the affected side in the group with Kienbock’s disease (3 of 7) and the unaffected side in the group with Kienbock’s disease (1 of 7; P=.237) and between the affected side in the group with Kienbock’s disease and the normal group (111 of 504; P=.189) by chi-square test. The prevalence of Kienbock’s disease was 1.2% in middle-aged and elderly Japanese women. Negative ulnar variance is not a contributing factor to Kienbock’s disease.
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http://naosite.lb.nagasaki-u.ac.jp/dspace/bitstream/10069/36260/1/ISYK850_Tsujimoto.pdf

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