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High systemic bone mineral density increases the risk of incident knee OA and joint space narrowing, but not radiographic progression of existing knee OA: the MOST study

High systemic bone mineral density increases the risk of incident knee OA and joint space narrowing, but not radiographic progression of existing knee OA: the MOST study
High systemic bone mineral density increases the risk of incident knee OA and joint space narrowing, but not radiographic progression of existing knee OA: the MOST study
Objectives: previous studies suggest that high systemic bone mineral density (BMD) is associated with incident knee osteoarthritis (OA) defined by osteophytes but not with joint space narrowing (JSN), and are inconsistent regarding BMD and progression of existing OA. The association of BMD with incident and progressive tibiofemoral OA was tested in a large prospective study of men and women aged 50–79 years with or at risk for knee OA.

Methods: baseline and 30-month weight-bearing posteroanterior and lateral knee radiographs were scored for Kellgren-Lawrence (K-L) grade, JSN and osteophytes. Incident OA was defined as the development of K-L grade ?2 at follow-up. All knees were classified for increases in grade of JSN and osteophytes from baseline. The association of gender-specific quartiles of baseline BMD with risk of incident and progressive OA was analysed using logistic regression, adjusting for covariates.

Results: the mean (SD) age of 1754 subjects was 63.2 (7.8) years and body mass index was 29.9 (5.4) kg/m2. In knees without baseline OA, higher femoral neck and whole body BMD were associated with an increased risk of incident OA and increases in grade of JSN and osteophytes (p<0.01 for trends); adjusted odds were 2.3–2.9-fold greater in the highest compared with the lowest BMD quartiles. In knees with existing OA, progression was not significantly related to BMD.

Conclusions: in knees without OA, higher systemic BMD was associated with a greater risk of the onset of JSN and K-L grade ?2. The role of systemic BMD in early knee OA pathogenesis warrants further investigation
0003-4967
163-168
Nevitt, M.C.
59d12ce3-5355-4f1f-bada-84281b987c65
Zhang, Y.
f812509d-2a3c-41aa-8ba1-68210952d5a6
Javaid, M.K.
51d3310b-032e-4c15-83ac-b878bce090f3
Neogi, T.
4864516c-ef09-42f9-aaa7-321f24a19081
Curtis, J.R.
706e5b79-0453-48af-a7a1-04c853b4c4b9
Niu, J.
67a31618-3502-4dfc-80b1-587c043a23aa
McCulloch, C.E.
fd8db246-cc64-4536-92ae-e3806a998dc1
Segal, N.A.
bd5dae35-a9e9-49dd-9e00-c10962f13530
Felson, D.T.
c2a29bad-b77b-49fa-aee1-94cd21e23ccc
Nevitt, M.C.
59d12ce3-5355-4f1f-bada-84281b987c65
Zhang, Y.
f812509d-2a3c-41aa-8ba1-68210952d5a6
Javaid, M.K.
51d3310b-032e-4c15-83ac-b878bce090f3
Neogi, T.
4864516c-ef09-42f9-aaa7-321f24a19081
Curtis, J.R.
706e5b79-0453-48af-a7a1-04c853b4c4b9
Niu, J.
67a31618-3502-4dfc-80b1-587c043a23aa
McCulloch, C.E.
fd8db246-cc64-4536-92ae-e3806a998dc1
Segal, N.A.
bd5dae35-a9e9-49dd-9e00-c10962f13530
Felson, D.T.
c2a29bad-b77b-49fa-aee1-94cd21e23ccc

Nevitt, M.C., Zhang, Y., Javaid, M.K., Neogi, T., Curtis, J.R., Niu, J., McCulloch, C.E., Segal, N.A. and Felson, D.T. (2010) High systemic bone mineral density increases the risk of incident knee OA and joint space narrowing, but not radiographic progression of existing knee OA: the MOST study. Annals of the Rheumatic Diseases, 69 (1), 163-168. (doi:10.1136/ard.2008.099531). (PMID:19147619)

Record type: Article

Abstract

Objectives: previous studies suggest that high systemic bone mineral density (BMD) is associated with incident knee osteoarthritis (OA) defined by osteophytes but not with joint space narrowing (JSN), and are inconsistent regarding BMD and progression of existing OA. The association of BMD with incident and progressive tibiofemoral OA was tested in a large prospective study of men and women aged 50–79 years with or at risk for knee OA.

Methods: baseline and 30-month weight-bearing posteroanterior and lateral knee radiographs were scored for Kellgren-Lawrence (K-L) grade, JSN and osteophytes. Incident OA was defined as the development of K-L grade ?2 at follow-up. All knees were classified for increases in grade of JSN and osteophytes from baseline. The association of gender-specific quartiles of baseline BMD with risk of incident and progressive OA was analysed using logistic regression, adjusting for covariates.

Results: the mean (SD) age of 1754 subjects was 63.2 (7.8) years and body mass index was 29.9 (5.4) kg/m2. In knees without baseline OA, higher femoral neck and whole body BMD were associated with an increased risk of incident OA and increases in grade of JSN and osteophytes (p<0.01 for trends); adjusted odds were 2.3–2.9-fold greater in the highest compared with the lowest BMD quartiles. In knees with existing OA, progression was not significantly related to BMD.

Conclusions: in knees without OA, higher systemic BMD was associated with a greater risk of the onset of JSN and K-L grade ?2. The role of systemic BMD in early knee OA pathogenesis warrants further investigation

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Published date: January 2010

Identifiers

Local EPrints ID: 192815
URI: http://eprints.soton.ac.uk/id/eprint/192815
ISSN: 0003-4967
PURE UUID: 7b302459-d46e-4b37-9046-68db310aca86

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Date deposited: 08 Jul 2011 10:33
Last modified: 14 Mar 2024 03:52

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Contributors

Author: M.C. Nevitt
Author: Y. Zhang
Author: M.K. Javaid
Author: T. Neogi
Author: J.R. Curtis
Author: J. Niu
Author: C.E. McCulloch
Author: N.A. Segal
Author: D.T. Felson

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