Article (Scientific journals)
The role of diet and exercise and of glucosamine sulfate in the prevention of knee osteoarthritis: Further results from the PRevention of knee Osteoarthritis in Overweight Females (PROOF) study.
Runhaar, J.; DEROISY, Rita; van Middelkoop, M. et al.
2016In Seminars in Arthritis and Rheumatism, 45 (4 Suppl), p. 42-S48
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Keywords :
knee osteoarthritis; prevention; randomized controlled trial; overweight; weight loss; glucosamine sulfate
Abstract :
[en] Background and objectives: The PRevention of knee Osteoarthritis in Overweight Females(PROOF) study (ISRCTN42823086) described a trend for a decrease in the incidence of kneeo steoarthritis (OA) by a tailored diet and exercise program (DEP)or by oral glucosamine sulfate in women at risk for the disease, using a composite clinical and/or radiological outcome. The aim of this updated post-hoc analysis was to re-assess the results according to more precise techniques and take advantage of the 2 x 2 factorial design. Methods: A total of 407 overweight( BMI > or egal 27kg/m2) women of 50–60 years of age with no diagnosis of knee OA were randomized to: (1) noDEP + placebo(Control, N = 102), (2) DEP + placebo (DEP, N = 101), (3) glucosamine sulfate + no DEP (GS, N = 102), and (4) DEP + glucosamine sulfate (DEP + GS, N = 102) and followed for 2.5 years, with standardized postero-anterior, semiflexed (MTP) view knee radiographs at baseline and end of the study. DEP consisted of a tailored low fat and/or low caloric diet and easy to implement physical activities. Glucosamine was given as oral crystalline glucosamine sulfate 1500 mg once daily ,double-blinded vs. placebo. Incident knee OA was defined as radiographic progression of >1mm minimum joint space narrowing (mJSN)in the medial tibiofemoral compartment, as previously assessed by the visual (manual) technique and by a new semi-automated method. Logistic regression analysis was used t ocalculate the odds ratio for the effect of the interventions. Results: After 2.5 years, 11.8% of control subjects developed knee OA. This incidence was decreased with glucosamine sulfate, either alone or in combination with the DEP, but not by the DEP alone. Since there was no statistical interaction between treatments, the 2x2 factorial design allowed analysis of patients receiving glucosamine sulfate (N = 204) vs. those not receiving it (N= 203), similarly for those on the DEP (N = 203) or not (N = 204). Glucosamine sulfate significantly decreased the risk of developing knee OA: odds ratio (OR) = 0.41(95% CI: 0.20–0.85, P = 0.02) by the manual JSN assessment method and OR = 0.42 (95% CI:0.20–0.92, P =0.03) by the semi-automated technique. Conversely, there was no decrease in risk with the DEP. Conclusions: Glucosamine sulfate decreased the risk of developing radiographic knee OA over 2.5 years in overweight, middle-aged women at risk, as determined by medial mJSN progression. Conversely a tailored diet and exercise program exerted no preventive effect, possibly because of the lower than expected effect on weigh tloss.
Disciplines :
General & internal medicine
Author, co-author :
Runhaar, J.
DEROISY, Rita  ;  Centre Hospitalier Universitaire de Liège - CHU > Médecine de l'appareil locomoteur
van Middelkoop, M.
Barbetta, F.
Barbetta, B.
Oei, E.H.
Vroeginddeweij, D.
Giacovelli, G.
Bruyère, Olivier  ;  Université de Liège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Rovati, L.C.
Reginster, Jean-Yves  ;  Université de Liège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Bierma-Zeinstra, Sita M. A.
Language :
English
Title :
The role of diet and exercise and of glucosamine sulfate in the prevention of knee osteoarthritis: Further results from the PRevention of knee Osteoarthritis in Overweight Females (PROOF) study.
Publication date :
2016
Journal title :
Seminars in Arthritis and Rheumatism
ISSN :
0049-0172
eISSN :
1532-866X
Publisher :
W.B. Saunders, Philadelphia, United States - Pennsylvania
Volume :
45
Issue :
4 Suppl
Pages :
S42-S48
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 February 2016

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