Skip to main content
Top
Published in: Trials 1/2012

Open Access 01-12-2012 | Study protocol

Vitamin D supplementation in the management of knee osteoarthritis: study protocol for a randomized controlled trial

Authors: Yuelong Cao, Graeme Jones, Flavia Cicuttini, Tania Winzenberg, Anita Wluka, James Sharman, Kay Nguo, Changhai Ding

Published in: Trials | Issue 1/2012

Login to get access

Abstract

Background

Osteoarthritis (OA) is a common health issue worldwide in the aging population who are also commonly deficient in vitamin D. Our previous study suggested that higher serum 25-(OH)D levels were associated with reduced knee cartilage loss, implying that vitamin D supplementation may prevent the progression of knee OA. The aim of the VItamin D Effects on OA (VIDEO) study is to compare, over a 2- year period, the effects of vitamin D supplementation versus placebo on knee structural changes, knee pain, and lower limb muscle strength in patients with symptomatic knee OA.

Methods/design

Randomised, placebo-controlled, and double-blind clinical trial aiming to recruit 400 subjects (200 from Tasmania and 200 from Victoria) with both symptomatic knee OA and vitamin D deficiency (serum [25-(OH)D] level of >12.5 nmol/liter and <60 nmol/liter). Participants will be randomly allocated to vitamin D supplementation (50,000 IU compounded vitamin D3 capsule monthly) or identical inert placebo group for 2 years. The primary endpoint is loss of knee cartilage volume measured by magnetic resonance imaging (MRI) and Western Ontario and McMaster Universities Index of OA (WOMAC) knee pain score. The secondary endpoints will be other knee structural changes, and lower limb muscle strength. Several other outcome measures including core muscle images and central blood pressure will be recorded. Linear and logistic regression will be used to compare changes between groups using univariable and multivariable modeling analyses. Both intention to treat and per protocol analyses will be utilized.

Discussion

The trial is designed to test if vitamin D supplementation will reduce loss of knee cartilage volume, prevent the progression of other knee structural abnormalities, reduce knee pain and strengthen lower limb muscle strength, thus modify disease progression in knee OA.

Trial registration

ClinicalTrials.gov identifier: NCT01176344; Australian New Zealand Clinical Trials Registry: ACTRN12610000495022
Literature
1.
go back to reference Felson DT: Clinical practice. Osteoarthritis of the knee. N Engl J Med. 2006, 354: 8410-8848.CrossRef Felson DT: Clinical practice. Osteoarthritis of the knee. N Engl J Med. 2006, 354: 8410-8848.CrossRef
2.
go back to reference Brand C, Hunter D, Hinman R, March L, Osborne R, Bennell K: Improving care for people with osteoarthritis of the hip and knee: how has national policy for osteoarthritis been translated into service models in Australia?. Int J Rheum Dis. 2011, 14: 181-190. 10.1111/j.1756-185X.2011.01613.x.CrossRefPubMed Brand C, Hunter D, Hinman R, March L, Osborne R, Bennell K: Improving care for people with osteoarthritis of the hip and knee: how has national policy for osteoarthritis been translated into service models in Australia?. Int J Rheum Dis. 2011, 14: 181-190. 10.1111/j.1756-185X.2011.01613.x.CrossRefPubMed
3.
go back to reference Bjelakovic G, Gluud LL, Nikolova D, Whitfield K, Wetterslev J, Simonetti RG, Bjelakovic M, Gluud C: Vitamin D supplementation for prevention of mortality in adults. Cochrane Database Syst Rev. 2011, CD007470- Bjelakovic G, Gluud LL, Nikolova D, Whitfield K, Wetterslev J, Simonetti RG, Bjelakovic M, Gluud C: Vitamin D supplementation for prevention of mortality in adults. Cochrane Database Syst Rev. 2011, CD007470-
4.
go back to reference Holick MF: Vitamin D status: measurement, interpretation, and clinical application. Ann Epidemiol. 2009, 19: 73-78. 10.1016/j.annepidem.2007.12.001.CrossRefPubMed Holick MF: Vitamin D status: measurement, interpretation, and clinical application. Ann Epidemiol. 2009, 19: 73-78. 10.1016/j.annepidem.2007.12.001.CrossRefPubMed
5.
go back to reference Carter GD: Accuracy of 25-hydroxyvitamin D assays: confronting the issues. Curr Drug Targets. 2011, 12: 19-28. 10.2174/138945011793591608.CrossRefPubMed Carter GD: Accuracy of 25-hydroxyvitamin D assays: confronting the issues. Curr Drug Targets. 2011, 12: 19-28. 10.2174/138945011793591608.CrossRefPubMed
7.
go back to reference Greene-Finestone LS, Berger C, de Groh M, Hanley DA, Hidiroglou N, Sarafin K, Poliquin S, Krieger J, Richards JB, Goltzman D: 25-Hydroxyvitamin D in Canadian adults: biological, environmental, and behavioral correlates. Osteoporos Int. 2011, 22: 1389-1399. 10.1007/s00198-010-1362-7.CrossRefPubMed Greene-Finestone LS, Berger C, de Groh M, Hanley DA, Hidiroglou N, Sarafin K, Poliquin S, Krieger J, Richards JB, Goltzman D: 25-Hydroxyvitamin D in Canadian adults: biological, environmental, and behavioral correlates. Osteoporos Int. 2011, 22: 1389-1399. 10.1007/s00198-010-1362-7.CrossRefPubMed
8.
go back to reference van der Mei IA, Ponsonby AL, Dwyer T, Blizzard L, Taylor BV, Kilpatrick T, Butzkueven H, McMichael AJ: Vitamin D levels in people with multiple sclerosis and community controls in Tasmania, Australia. J Neurol. 2007, 254: 581-590. 10.1007/s00415-006-0315-8.CrossRefPubMed van der Mei IA, Ponsonby AL, Dwyer T, Blizzard L, Taylor BV, Kilpatrick T, Butzkueven H, McMichael AJ: Vitamin D levels in people with multiple sclerosis and community controls in Tasmania, Australia. J Neurol. 2007, 254: 581-590. 10.1007/s00415-006-0315-8.CrossRefPubMed
9.
go back to reference Erbas B, Ebeling PR, Couch D, Wark JD: Suburban clustering of vitamin D deficiency in Melbourne, Australia. Asia Pac J Clin Nutr. 2008, 17: 63-67.PubMed Erbas B, Ebeling PR, Couch D, Wark JD: Suburban clustering of vitamin D deficiency in Melbourne, Australia. Asia Pac J Clin Nutr. 2008, 17: 63-67.PubMed
10.
go back to reference van der Mei IA, Ponsonby AL, Engelsen O, Pasco JA, McGrath JJ, Eyles DW, Blizzard L, Dwyer T, Lucas R, Jones G: The high prevalence of vitamin D insufficiency across Australian populations is only partly explained by season and latitude. Environ Health Perspect. 2007, 115: 1132-1139. 10.1289/ehp.9937.CrossRefPubMedPubMedCentral van der Mei IA, Ponsonby AL, Engelsen O, Pasco JA, McGrath JJ, Eyles DW, Blizzard L, Dwyer T, Lucas R, Jones G: The high prevalence of vitamin D insufficiency across Australian populations is only partly explained by season and latitude. Environ Health Perspect. 2007, 115: 1132-1139. 10.1289/ehp.9937.CrossRefPubMedPubMedCentral
11.
go back to reference Tetlow LC, Woolley DE: Expression of vitamin D receptors and matrix metalloproteinases in osteoarthritic cartilage and human articular chondrocytes in vitro. Osteoarthritis Cartilage. 2001, 9: 423-431. 10.1053/joca.2000.0408.CrossRefPubMed Tetlow LC, Woolley DE: Expression of vitamin D receptors and matrix metalloproteinases in osteoarthritic cartilage and human articular chondrocytes in vitro. Osteoarthritis Cartilage. 2001, 9: 423-431. 10.1053/joca.2000.0408.CrossRefPubMed
12.
go back to reference McAlindon TE: Nutraceuticals: do they work and when should we use them?. Best Pract Res Clin Rheumatol. 2006, 20: 99-115. 10.1016/j.berh.2005.09.002.CrossRefPubMed McAlindon TE: Nutraceuticals: do they work and when should we use them?. Best Pract Res Clin Rheumatol. 2006, 20: 99-115. 10.1016/j.berh.2005.09.002.CrossRefPubMed
13.
go back to reference Holick MF: High prevalence of vitamin D inadequacy and implications for health. Mayo Clin Proc. 2006, 81: 353-373. 10.4065/81.3.353.CrossRefPubMed Holick MF: High prevalence of vitamin D inadequacy and implications for health. Mayo Clin Proc. 2006, 81: 353-373. 10.4065/81.3.353.CrossRefPubMed
14.
go back to reference Bischoff-Ferrari HA, Giovannucci E, Willett WC, Dietrich T, Dawson-Hughes B: Estimation of optimal serum concentrations of 25-hydroxyvitamin D for multiple health outcomes. Am J Clin Nutr. 2006, 84: 18-28.PubMed Bischoff-Ferrari HA, Giovannucci E, Willett WC, Dietrich T, Dawson-Hughes B: Estimation of optimal serum concentrations of 25-hydroxyvitamin D for multiple health outcomes. Am J Clin Nutr. 2006, 84: 18-28.PubMed
15.
go back to reference Ding C, Cicuttini F, Parameswaran V, Burgess J, Quinn S, Jones G: Serum levels of vitamin D, sunlight exposure, and knee cartilage loss in older adults: the Tasmanian older adult cohort study. Arthritis Rheum. 2009, 60: 1381-1389. 10.1002/art.24486.CrossRefPubMed Ding C, Cicuttini F, Parameswaran V, Burgess J, Quinn S, Jones G: Serum levels of vitamin D, sunlight exposure, and knee cartilage loss in older adults: the Tasmanian older adult cohort study. Arthritis Rheum. 2009, 60: 1381-1389. 10.1002/art.24486.CrossRefPubMed
16.
go back to reference Ding C, Cicuttini F, Jones G: Tibial subchondral bone size and knee cartilage defects: relevance to knee osteoarthritis. Osteoarthritis Cartilage. 2007, 15: 479-486. 10.1016/j.joca.2007.01.003.CrossRefPubMed Ding C, Cicuttini F, Jones G: Tibial subchondral bone size and knee cartilage defects: relevance to knee osteoarthritis. Osteoarthritis Cartilage. 2007, 15: 479-486. 10.1016/j.joca.2007.01.003.CrossRefPubMed
17.
go back to reference Laslett L, Ding C, Quinn S, Burgess J, Parameswaran V, Winzenberg T, Jones G: Serum 25 Hydroxy Vitamin D (25OHD) and Incident or Worsening Knee Pain In Older Adults: A Five Year Longitudinal Study [abstract]. Arthritis Rheum. 2011, 63 (Suppl 10): 876- Laslett L, Ding C, Quinn S, Burgess J, Parameswaran V, Winzenberg T, Jones G: Serum 25 Hydroxy Vitamin D (25OHD) and Incident or Worsening Knee Pain In Older Adults: A Five Year Longitudinal Study [abstract]. Arthritis Rheum. 2011, 63 (Suppl 10): 876-
18.
go back to reference Hodges PW, Richardson CA: Inefficient muscular stabilization of the lumbar spine associated with low back pain. A motor control evaluation of transversus abdominis. Spine (Phila Pa 1976). 1996, 21: 2640-2650. 10.1097/00007632-199611150-00014.CrossRef Hodges PW, Richardson CA: Inefficient muscular stabilization of the lumbar spine associated with low back pain. A motor control evaluation of transversus abdominis. Spine (Phila Pa 1976). 1996, 21: 2640-2650. 10.1097/00007632-199611150-00014.CrossRef
19.
go back to reference Glerup H, Mikkelsen K, Poulsen L, Hass E, Overbeck S, Andersen H, Charles P, Eriksen EF: Hypovitaminosis D myopathy without biochemical signs of osteomalacic bone involvement. Calcif Tissue Int. 2000, 66: 419-424. 10.1007/s002230010085.CrossRefPubMed Glerup H, Mikkelsen K, Poulsen L, Hass E, Overbeck S, Andersen H, Charles P, Eriksen EF: Hypovitaminosis D myopathy without biochemical signs of osteomalacic bone involvement. Calcif Tissue Int. 2000, 66: 419-424. 10.1007/s002230010085.CrossRefPubMed
20.
go back to reference Scott D, Blizzard L, Fell J, Ding C, Winzenberg T, Jones G: A prospective study of the associations between 25-hydroxy-vitamin D, sarcopenia progression and physical activity in older adults. Clin Endocrinol (Oxf). 2010, 73: 581-587. 10.1111/j.1365-2265.2010.03858.x.CrossRef Scott D, Blizzard L, Fell J, Ding C, Winzenberg T, Jones G: A prospective study of the associations between 25-hydroxy-vitamin D, sarcopenia progression and physical activity in older adults. Clin Endocrinol (Oxf). 2010, 73: 581-587. 10.1111/j.1365-2265.2010.03858.x.CrossRef
21.
go back to reference Hides JA, Richardson CA, Jull GA: Multifidus muscle recovery is not automatic after resolution of acute, first-episode low back pain. Spine (Phila Pa 1976). 1996, 21: 2763-2769. 10.1097/00007632-199612010-00011.CrossRef Hides JA, Richardson CA, Jull GA: Multifidus muscle recovery is not automatic after resolution of acute, first-episode low back pain. Spine (Phila Pa 1976). 1996, 21: 2763-2769. 10.1097/00007632-199612010-00011.CrossRef
22.
go back to reference Li YC, Kong J, Wei M, Chen ZF, Liu SQ, Cao LP: 1,25-Dihydroxyvitamin D(3) is a negative endocrine regulator of the renin-angiotensin system. J Clin Invest. 2002, 110: 229-238.CrossRefPubMedPubMedCentral Li YC, Kong J, Wei M, Chen ZF, Liu SQ, Cao LP: 1,25-Dihydroxyvitamin D(3) is a negative endocrine regulator of the renin-angiotensin system. J Clin Invest. 2002, 110: 229-238.CrossRefPubMedPubMedCentral
23.
go back to reference Simpson RU, Hershey SH, Nibbelink KA: Characterization of heart size and blood pressure in the vitamin D receptor knockout mouse. J Steroid Biochem Mol Biol. 2007, 103: 521-524. 10.1016/j.jsbmb.2006.12.098.CrossRefPubMed Simpson RU, Hershey SH, Nibbelink KA: Characterization of heart size and blood pressure in the vitamin D receptor knockout mouse. J Steroid Biochem Mol Biol. 2007, 103: 521-524. 10.1016/j.jsbmb.2006.12.098.CrossRefPubMed
24.
go back to reference Xiang W, Kong J, Chen S, Cao LP, Qiao G, Zheng W, Liu W, Li X, Gardner DG, Li YC: Cardiac hypertrophy in vitamin D receptor knockout mice: role of the systemic and cardiac renin-angiotensin systems. Am J Physiol Endocrinol Metab. 2005, 288: E125-E132.CrossRefPubMed Xiang W, Kong J, Chen S, Cao LP, Qiao G, Zheng W, Liu W, Li X, Gardner DG, Li YC: Cardiac hypertrophy in vitamin D receptor knockout mice: role of the systemic and cardiac renin-angiotensin systems. Am J Physiol Endocrinol Metab. 2005, 288: E125-E132.CrossRefPubMed
25.
go back to reference Nichols WW, O’Rourke MF: McDonald’s blood flow in arteries: Theoretical, experimental and clinical principles. 2005, Hodder Arnold, London, 5 Nichols WW, O’Rourke MF: McDonald’s blood flow in arteries: Theoretical, experimental and clinical principles. 2005, Hodder Arnold, London, 5
26.
go back to reference Mancia G, De Backer G, Dominiczak A, Cifkova R, Fagard R, Germano G, Grassi G, Heagerty AM, Kjeldsen SE, Laurent S, Narkiewicz K, Ruilope L, Rynkiewicz A, Schmieder RE, Boudier HA, Zanchetti A, Vahanian A, Camm J, De Caterina R, Dean V, Dickstein K, Filippatos G, Funck-Brentano C, Hellemans I, Kristensen SD, McGregor K, Sechtem U, Silber S, Tendera M, Widimsky P: 2007 Guidelines for the Management of Arterial Hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC). J Hypertens. 2007, 25: 1105-1187. 10.1097/HJH.0b013e3281fc975a.CrossRefPubMed Mancia G, De Backer G, Dominiczak A, Cifkova R, Fagard R, Germano G, Grassi G, Heagerty AM, Kjeldsen SE, Laurent S, Narkiewicz K, Ruilope L, Rynkiewicz A, Schmieder RE, Boudier HA, Zanchetti A, Vahanian A, Camm J, De Caterina R, Dean V, Dickstein K, Filippatos G, Funck-Brentano C, Hellemans I, Kristensen SD, McGregor K, Sechtem U, Silber S, Tendera M, Widimsky P: 2007 Guidelines for the Management of Arterial Hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC). J Hypertens. 2007, 25: 1105-1187. 10.1097/HJH.0b013e3281fc975a.CrossRefPubMed
27.
go back to reference Altman R, Asch E, Bloch D, Bole G, Borenstein D, Brandt K, Christy W, Cooke TD, Greenwald R, Hochberg M, Howell D, Kaplan D, Koopman W, Longley S, Mankin H, McShane DJ, Medsger T, Meenan RJR, Mikkelsen W, Moskowitz R, Murphy W, Rothschild B, Segal M, Sokoloff L, Wolfe F: Development of criteria for the classification and reporting of osteoarthritis. Classification of osteoarthritis of the knee. Diagnostic and Therapeutic Criteria Committee of the American Rheumatism Association. Arthritis Rheum. 1986, 29: 1039-1049. 10.1002/art.1780290816.CrossRefPubMed Altman R, Asch E, Bloch D, Bole G, Borenstein D, Brandt K, Christy W, Cooke TD, Greenwald R, Hochberg M, Howell D, Kaplan D, Koopman W, Longley S, Mankin H, McShane DJ, Medsger T, Meenan RJR, Mikkelsen W, Moskowitz R, Murphy W, Rothschild B, Segal M, Sokoloff L, Wolfe F: Development of criteria for the classification and reporting of osteoarthritis. Classification of osteoarthritis of the knee. Diagnostic and Therapeutic Criteria Committee of the American Rheumatism Association. Arthritis Rheum. 1986, 29: 1039-1049. 10.1002/art.1780290816.CrossRefPubMed
28.
go back to reference Hochberg MC, Chang RW, Dwosh I, Lindsey S, Pincus T, Wolfe F: The American College of Rheumatology 1991 revised criteria for the classification of global functional status in rheumatoid arthritis. Arthritis Rheum. 1992, 35: 498-502. 10.1002/art.1780350502.CrossRefPubMed Hochberg MC, Chang RW, Dwosh I, Lindsey S, Pincus T, Wolfe F: The American College of Rheumatology 1991 revised criteria for the classification of global functional status in rheumatoid arthritis. Arthritis Rheum. 1992, 35: 498-502. 10.1002/art.1780350502.CrossRefPubMed
29.
go back to reference Altman RD, Hochberg M, Murphy WA, Wolfe F, Lequesne M: Atlas of individual radiographic features in osteoarthritis. Osteoarthritis Cartilage. 1995, 3 (Suppl A): 3-70.PubMed Altman RD, Hochberg M, Murphy WA, Wolfe F, Lequesne M: Atlas of individual radiographic features in osteoarthritis. Osteoarthritis Cartilage. 1995, 3 (Suppl A): 3-70.PubMed
30.
go back to reference Wigg AE, Prest C, Slobodian P, Need AG, Cleland LG: A system for improving vitamin D nutrition in residential care. Med J Aust. 2006, 185: 195-198.PubMed Wigg AE, Prest C, Slobodian P, Need AG, Cleland LG: A system for improving vitamin D nutrition in residential care. Med J Aust. 2006, 185: 195-198.PubMed
31.
go back to reference Bellamy N, Buchanan WW, Goldsmith CH, Campbell J, Stitt LW: Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee. J Rheumatol. 1988, 15: 1833-1840.PubMed Bellamy N, Buchanan WW, Goldsmith CH, Campbell J, Stitt LW: Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee. J Rheumatol. 1988, 15: 1833-1840.PubMed
32.
go back to reference Peterfy CG, Guermazi A, Zaim S, Tirman PF, Miaux Y, White D, Kothari M, Lu Y, Fye K, Zhao S, Genant HK: Whole-Organ Magnetic Resonance Imaging Score (WORMS) of the knee in osteoarthritis. Osteoarthritis Cartilage. 2004, 12: 177-190. 10.1016/j.joca.2003.11.003.CrossRefPubMed Peterfy CG, Guermazi A, Zaim S, Tirman PF, Miaux Y, White D, Kothari M, Lu Y, Fye K, Zhao S, Genant HK: Whole-Organ Magnetic Resonance Imaging Score (WORMS) of the knee in osteoarthritis. Osteoarthritis Cartilage. 2004, 12: 177-190. 10.1016/j.joca.2003.11.003.CrossRefPubMed
33.
go back to reference Ding C, Martel-Pelletier J, Pelletier JP, Abram F, Raynauld JP, Cicuttini F, Jones G: Meniscal tear as an osteoarthritis risk factor in a largely non-osteoarthritic cohort: a cross-sectional study. J Rheumatol. 2007, 34: 776-784.PubMed Ding C, Martel-Pelletier J, Pelletier JP, Abram F, Raynauld JP, Cicuttini F, Jones G: Meniscal tear as an osteoarthritis risk factor in a largely non-osteoarthritic cohort: a cross-sectional study. J Rheumatol. 2007, 34: 776-784.PubMed
34.
go back to reference Hides J, Gilmore C, Stanton W, Bohlscheid E: Multifidus size and symmetry among chronic LBP and healthy asymptomatic subjects. Man Ther. 2008, 13: 43-49. 10.1016/j.math.2006.07.017.CrossRefPubMed Hides J, Gilmore C, Stanton W, Bohlscheid E: Multifidus size and symmetry among chronic LBP and healthy asymptomatic subjects. Man Ther. 2008, 13: 43-49. 10.1016/j.math.2006.07.017.CrossRefPubMed
35.
go back to reference Hides JA, Miokovic T, Belavy DL, Stanton WR, Richardson CA: Ultrasound imaging assessment of abdominal muscle function during drawing-in of the abdominal wall: an intrarater reliability study. J Orthop Sports Phys Ther. 2007, 37: 480-486.CrossRefPubMed Hides JA, Miokovic T, Belavy DL, Stanton WR, Richardson CA: Ultrasound imaging assessment of abdominal muscle function during drawing-in of the abdominal wall: an intrarater reliability study. J Orthop Sports Phys Ther. 2007, 37: 480-486.CrossRefPubMed
36.
go back to reference Koppenhaver SL, Hebert JJ, Fritz JM, Parent EC, Teyhen DS, Magel JS: Reliability of rehabilitative ultrasound imaging of the transversus abdominis and lumbar multifidus muscles. Arch Phys Med Rehabil. 2009, 90: 87-94. 10.1016/j.apmr.2008.06.022.CrossRefPubMed Koppenhaver SL, Hebert JJ, Fritz JM, Parent EC, Teyhen DS, Magel JS: Reliability of rehabilitative ultrasound imaging of the transversus abdominis and lumbar multifidus muscles. Arch Phys Med Rehabil. 2009, 90: 87-94. 10.1016/j.apmr.2008.06.022.CrossRefPubMed
37.
go back to reference Laurent S, Cockcroft J, Van Bortel L, Boutouyrie P, Giannattasio C, Hayoz D, Pannier B, Vlachopoulos C, Wilkinson I, Struijker-Boudier H: Expert consensus document on arterial stiffness: methodological issues and clinical applications. Eur Heart J. 2006, 27: 2588-2505. 10.1093/eurheartj/ehl254.CrossRefPubMed Laurent S, Cockcroft J, Van Bortel L, Boutouyrie P, Giannattasio C, Hayoz D, Pannier B, Vlachopoulos C, Wilkinson I, Struijker-Boudier H: Expert consensus document on arterial stiffness: methodological issues and clinical applications. Eur Heart J. 2006, 27: 2588-2505. 10.1093/eurheartj/ehl254.CrossRefPubMed
38.
go back to reference Aoyagi Y, Shephard RJ: A model to estimate the potential for a physical activity-induced reduction in healthcare costs for the elderly, based on pedometer/accelerometer data from the Nakanojo Study. Sports Med. 2011, 41: 695-708. 10.2165/11590530-000000000-00000.CrossRefPubMed Aoyagi Y, Shephard RJ: A model to estimate the potential for a physical activity-induced reduction in healthcare costs for the elderly, based on pedometer/accelerometer data from the Nakanojo Study. Sports Med. 2011, 41: 695-708. 10.2165/11590530-000000000-00000.CrossRefPubMed
39.
go back to reference Craig CL, Marshall AL, Sjostrom M, Bauman AE, Booth ML, Ainsworth BE, Pratt M, Ekelund U, Yngve A, Sallis JF, Oja P: International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc. 2003, 35: 1381-1395. 10.1249/01.MSS.0000078924.61453.FB.CrossRefPubMed Craig CL, Marshall AL, Sjostrom M, Bauman AE, Booth ML, Ainsworth BE, Pratt M, Ekelund U, Yngve A, Sallis JF, Oja P: International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc. 2003, 35: 1381-1395. 10.1249/01.MSS.0000078924.61453.FB.CrossRefPubMed
40.
go back to reference Wang Y, Simpson JA, Wluka AE, Teichtahl AJ, English DR, Giles GG, Graves S, Cicuttini FM: Relationship between body adiposity measures and risk of primary knee and hip replacement for osteoarthritis: a prospective cohort study. Arthritis Res Ther. 2009, 11: R31-10.1186/ar2636.CrossRefPubMedPubMedCentral Wang Y, Simpson JA, Wluka AE, Teichtahl AJ, English DR, Giles GG, Graves S, Cicuttini FM: Relationship between body adiposity measures and risk of primary knee and hip replacement for osteoarthritis: a prospective cohort study. Arthritis Res Ther. 2009, 11: R31-10.1186/ar2636.CrossRefPubMedPubMedCentral
41.
go back to reference Cohen J: Statistical power analysis for the behavioral sciences. 1988, Lawrence Erlbaum Associates, Inc, New Jersey, 2 Cohen J: Statistical power analysis for the behavioral sciences. 1988, Lawrence Erlbaum Associates, Inc, New Jersey, 2
42.
go back to reference Wluka AE, Stuckey S, Snaddon J, Cicuttini FM: The determinants of change in tibial cartilage volume in osteoarthritic knees. Arthritis Rheum. 2002, 46: 2065-2072. 10.1002/art.10460.CrossRefPubMed Wluka AE, Stuckey S, Snaddon J, Cicuttini FM: The determinants of change in tibial cartilage volume in osteoarthritic knees. Arthritis Rheum. 2002, 46: 2065-2072. 10.1002/art.10460.CrossRefPubMed
43.
go back to reference Bischoff-Ferrari HA, Willett WC, Wong JB, Giovannucci E, Dietrich T, Dawson-Hughes B: Fracture prevention with vitamin D supplementation: a meta-analysis of randomized controlled trials. JAMA. 2005, 293: 2257-2264. 10.1001/jama.293.18.2257.CrossRefPubMed Bischoff-Ferrari HA, Willett WC, Wong JB, Giovannucci E, Dietrich T, Dawson-Hughes B: Fracture prevention with vitamin D supplementation: a meta-analysis of randomized controlled trials. JAMA. 2005, 293: 2257-2264. 10.1001/jama.293.18.2257.CrossRefPubMed
44.
go back to reference Wang Y, Wluka AE, Cicuttini FM: The determinants of change in tibial plateau bone area in osteoarthritic knees: a cohort study. Arthritis Res Ther. 2005, 7: R687-R693. 10.1186/ar1726.CrossRefPubMedPubMedCentral Wang Y, Wluka AE, Cicuttini FM: The determinants of change in tibial plateau bone area in osteoarthritic knees: a cohort study. Arthritis Res Ther. 2005, 7: R687-R693. 10.1186/ar1726.CrossRefPubMedPubMedCentral
45.
go back to reference Wluka AE, Ding C, Jones G, Cicuttini FM: The clinical correlates of articular cartilage defects in symptomatic knee osteoarthritis: a prospective study. Rheumatology (Oxford). 2005, 44: 1311-1316. 10.1093/rheumatology/kei018.CrossRef Wluka AE, Ding C, Jones G, Cicuttini FM: The clinical correlates of articular cartilage defects in symptomatic knee osteoarthritis: a prospective study. Rheumatology (Oxford). 2005, 44: 1311-1316. 10.1093/rheumatology/kei018.CrossRef
46.
go back to reference Wang Y, Ding C, Wluka AE, Davis S, Ebeling PR, Jones G, Cicuttini FM: Factors affecting progression of knee cartilage defects in normal subjects over 2 years. Rheumatology (Oxford). 2006, 45: 79-84. 10.1093/rheumatology/kei108.CrossRef Wang Y, Ding C, Wluka AE, Davis S, Ebeling PR, Jones G, Cicuttini FM: Factors affecting progression of knee cartilage defects in normal subjects over 2 years. Rheumatology (Oxford). 2006, 45: 79-84. 10.1093/rheumatology/kei108.CrossRef
47.
go back to reference Losina ECJ, Hunter DJ, Eckstein F, Nevitt MC, Cotofana S, Kwoh CK, Katz JN: The minimal clinically important difference (MCID) in cartilage volume and thickness change in persons with knee osteoarthritis[abstract]. Osteoarthritis Cartilage. 2011, 19 (Suppl 1): 177-178.CrossRef Losina ECJ, Hunter DJ, Eckstein F, Nevitt MC, Cotofana S, Kwoh CK, Katz JN: The minimal clinically important difference (MCID) in cartilage volume and thickness change in persons with knee osteoarthritis[abstract]. Osteoarthritis Cartilage. 2011, 19 (Suppl 1): 177-178.CrossRef
48.
go back to reference Henrotin Y, Lambert C, Couchourel D, Ripoll C, Chiotelli E: Nutraceuticals: do they represent a new era in the management of osteoarthritis? - a narrative review from the lessons taken with five products. Osteoarthritis Cartilage. 2011, 19: 1-21. 10.1016/j.joca.2010.10.017.CrossRefPubMed Henrotin Y, Lambert C, Couchourel D, Ripoll C, Chiotelli E: Nutraceuticals: do they represent a new era in the management of osteoarthritis? - a narrative review from the lessons taken with five products. Osteoarthritis Cartilage. 2011, 19: 1-21. 10.1016/j.joca.2010.10.017.CrossRefPubMed
49.
go back to reference Guermazi A, Hunter DJ, Roemer FW: Plain radiography and magnetic resonance imaging diagnostics in osteoarthritis: validated staging and scoring. J Bone Joint Surg Am. 2009, 91 (Suppl 1): 54-62.CrossRefPubMed Guermazi A, Hunter DJ, Roemer FW: Plain radiography and magnetic resonance imaging diagnostics in osteoarthritis: validated staging and scoring. J Bone Joint Surg Am. 2009, 91 (Suppl 1): 54-62.CrossRefPubMed
50.
go back to reference Cicuttini FM, Jones G, Forbes A, Wluka AE: Rate of cartilage loss at two years predicts subsequent total knee arthroplasty: a prospective study. Ann Rheum Dis. 2004, 63: 1124-1127. 10.1136/ard.2004.021253.CrossRefPubMedPubMedCentral Cicuttini FM, Jones G, Forbes A, Wluka AE: Rate of cartilage loss at two years predicts subsequent total knee arthroplasty: a prospective study. Ann Rheum Dis. 2004, 63: 1124-1127. 10.1136/ard.2004.021253.CrossRefPubMedPubMedCentral
51.
go back to reference Raynauld JP, Martel-Pelletier J, Haraoui B, Choquette D, Dorais M, Wildi LM, Abram F, Pelletier JP: Risk factors predictive of joint replacement in a 2-year multicentre clinical trial in knee osteoarthritis using MRI: results from over 6 years of observation. Ann Rheum Dis. 2011, 70: 1382-1388. 10.1136/ard.2010.146407.CrossRefPubMed Raynauld JP, Martel-Pelletier J, Haraoui B, Choquette D, Dorais M, Wildi LM, Abram F, Pelletier JP: Risk factors predictive of joint replacement in a 2-year multicentre clinical trial in knee osteoarthritis using MRI: results from over 6 years of observation. Ann Rheum Dis. 2011, 70: 1382-1388. 10.1136/ard.2010.146407.CrossRefPubMed
52.
go back to reference Holick MF, Binkley NC, Bischoff-Ferrari HA, Gordon CM, Hanley DA, Heaney RP, Murad MH, Weaver CM: Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011, 96: 1911-1930. 10.1210/jc.2011-0385.CrossRefPubMed Holick MF, Binkley NC, Bischoff-Ferrari HA, Gordon CM, Hanley DA, Heaney RP, Murad MH, Weaver CM: Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011, 96: 1911-1930. 10.1210/jc.2011-0385.CrossRefPubMed
53.
go back to reference Chel V, Wijnhoven HA, Smit JH, Ooms M, Lips P: Efficacy of different doses and time intervals of oral vitamin D supplementation with or without calcium in elderly nursing home residents. Osteoporos Int. 2008, 19: 663-671. 10.1007/s00198-007-0465-2.CrossRefPubMed Chel V, Wijnhoven HA, Smit JH, Ooms M, Lips P: Efficacy of different doses and time intervals of oral vitamin D supplementation with or without calcium in elderly nursing home residents. Osteoporos Int. 2008, 19: 663-671. 10.1007/s00198-007-0465-2.CrossRefPubMed
54.
go back to reference Hyde J, Stanton WR, Hides JA: Abdominal muscle response to a simulated weight-bearing task by elite Australian Rules football players. Hum Mov Sci. 2012, 31: 129-138. 10.1016/j.humov.2011.04.005.CrossRefPubMed Hyde J, Stanton WR, Hides JA: Abdominal muscle response to a simulated weight-bearing task by elite Australian Rules football players. Hum Mov Sci. 2012, 31: 129-138. 10.1016/j.humov.2011.04.005.CrossRefPubMed
55.
go back to reference Pilz S, Tomaschitz A, Ritz E, Pieber TR: Vitamin D status and arterial hypertension: a systematic review. Nat Rev Cardiol. 2009, 6: 621-630. 10.1038/nrcardio.2009.135.CrossRefPubMed Pilz S, Tomaschitz A, Ritz E, Pieber TR: Vitamin D status and arterial hypertension: a systematic review. Nat Rev Cardiol. 2009, 6: 621-630. 10.1038/nrcardio.2009.135.CrossRefPubMed
Metadata
Title
Vitamin D supplementation in the management of knee osteoarthritis: study protocol for a randomized controlled trial
Authors
Yuelong Cao
Graeme Jones
Flavia Cicuttini
Tania Winzenberg
Anita Wluka
James Sharman
Kay Nguo
Changhai Ding
Publication date
01-12-2012
Publisher
BioMed Central
Published in
Trials / Issue 1/2012
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/1745-6215-13-131

Other articles of this Issue 1/2012

Trials 1/2012 Go to the issue