Khan, HI and Aitken, D and Chou, L and McBride, A and Ding, C and Blizzard, L and Pelletier, J-P and Pelletier, JM and Cicuttini, F and Jones, G, A family history of knee joint replacement increases the progression of knee radiographic osteoarthritis and medial tibial cartilage volume loss over 10 years, Osteoarthritis and Cartilage, 23, (2) pp. 203-209. ISSN 1063-4584 (2015) [Refereed Article]
Copyright 2014 Osteoarthritis Research Society International
Objectives: Osteoarthritis (OA) has a genetic component but it is uncertain if the offspring of those with knee OA are at a greater risk. The aim of this study was to describe radiographic OA (ROA) progression and cartilage loss over 10 years in a midlife cohort with some having a family history of OA and some community based controls.
Methods: 220 participants [mean-age 45(26-61); 57% female] were studied at baseline and ten years. Half were adult offspring of subjects who underwent knee replacement for OA and the remainder were randomly selected controls. Joint space narrowing (JSN) and osteophytes were assessed on radiographs and cartilage volume (tibial, femoral and patellar), cartilage defects, bone marrow lesions and meniscal tears were assessed on MRI.
Results: For ROA, there was a significant difference between offspring and controls in unadjusted analysis for change in total ROA, medial JSN, total medial, total lateral and total osteophyte scores. This difference persisted for medial JSN(difference in ratios=+1.93(+1.04,+3.51)) only, after adjustment for confounders and baseline differences. In unadjusted analysis for cartilage loss, offspring lost more cartilage at the medial tibial(difference in means= -79.13(-161.92,+3.71)) site only. This difference became of borderline significance after adjustment for baseline differences (P = 0.055).
Conclusion: The offspring of subjects having a total knee replacement have a greater worsening of ROA(both JSN and osteophytes) and higher medial tibial cartilage volume loss over ten years. Most of these changes are mediated by differences in baseline characteristics of offspring and controls except for increase in medial JSN.
|Item Type:||Refereed Article|
|Keywords:||knee osteoarthritis, magnetic resonance imaging, radiographs, epidemiology, genetics|
|Research Division:||Biomedical and Clinical Sciences|
|Research Group:||Clinical sciences|
|Research Field:||Rheumatology and arthritis|
|Objective Group:||Clinical health|
|Objective Field:||Clinical health not elsewhere classified|
|UTAS Author:||Khan, HI (Dr Hussain Khan)|
|UTAS Author:||Aitken, D (Associate Professor Dawn Aitken)|
|UTAS Author:||Chou, L (Ms Lousia Chou)|
|UTAS Author:||McBride, A (Dr Andrew McBride)|
|UTAS Author:||Ding, C (Professor Chang-Hai Ding)|
|UTAS Author:||Blizzard, L (Professor Leigh Blizzard)|
|UTAS Author:||Jones, G (Professor Graeme Jones)|
|Web of Science® Times Cited:||13|
|Deposited By:||Menzies Institute for Medical Research|
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