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Radiographic features of hand osteoarthritis in adult Kashin-Beck Disease (KBD): the Yongshou KBD study

Fu, Q., Cao, J., Renner, J. B., Jordan, J. M., Caterson, Bruce ORCID:, Duance, Victor Colin ORCID:, Luo, M. and Kraus, V. B. 2015. Radiographic features of hand osteoarthritis in adult Kashin-Beck Disease (KBD): the Yongshou KBD study. Osteoarthritis and Cartilage 23 (6) , pp. 868-873. 10.1016/j.joca.2015.01.009

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Objective Kashin-Beck Disease (KBD) is a rare and severe osteoarthropathy endemic to China. We evaluated the frequency and patterns of hand radiographic osteoarthritis (rOA) in adults with and without KBD. Methods Han Chinese (N = 438) from Yongshou County of central China underwent right hand radiography for determining case status. Presence of KBD was based on characteristic radiographic deformities of articular ends of bones including articular surface depression, carpal crowding, any subchondral bone deformities in the proximal end of phalanges or first metacarpal bone, or the distal ends of metacarpal bones 2–5, and any bony enlargement with deformity of the distal ends of phalanges. Hand rOA severity was determined by osteophyte (OST), joint space narrowing (JSN), and Kellgren and Lawrence (KL) grades. Results This study included 127 KBD and 311 non-KBD adults of similar mean age (39 years) and body mass index (BMI) (21 kg/m2). Inter- and intra-rater reliability for radiographic determination of case status and rOA features was high (kappa 0.72–0.96). Compared to non-KBD, KBD adults had significantly more severe hand rOA of the thumb, distal interphalangeal (DIP), proximal interphalangeal (PIP) and metacarpophalangeal (MCP) joints. Only KBD adults had end-stage carpometacapal (CMC) disease. In KBD, DIPs and PIPs were more affected than MCPs and the frequency of OSTs was significantly higher in PIPs than DIPs. Conclusions Compared with age-matched adults from the same area and farming occupation, KBD hand rOA was more widespread and severe, particularly of PIPs and CMCs. The ability to differentiate adult KBD from non-KBD hand rOA will facilitate genetic analyses of the vast majority of affected individuals.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QP Physiology
Uncontrolled Keywords: Osteoarthritis; Hand; Radiographic; Diagnosis; Kashin-Beck Disease
Publisher: Elsevier
ISSN: 1063-4584
Date of Acceptance: 17 January 2015
Last Modified: 28 Oct 2022 08:31

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