Unilateral versus bilateral primary knee osteoarthritis: Relation to the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC), C-reactive protein and radiological assessment in Egyptian patients

Symmons, 2001, Knee pain in older adults: Knee pain in older adults: the latest musculo-skeletal “epidemic”, Ann Rheum Dis, 60, 89, 10.1136/ard.60.2.89 Qvist, 2008, The disease modifying osteoarthritis drug (DMOAD): is it in the horizon?, Pharmacol Res, 58, 1, 10.1016/j.phrs.2008.06.001 McAllindon, 2014, OARSI guidelines for the non-surgical management of knee osteoarthritis, Osteoarthritis Cartilage, 22, 363, 10.1016/j.joca.2014.01.003 Costigan, 2002, Knee and hip kinetics during normal stair climbing, Gait Posture, 16, 31, 10.1016/S0966-6362(01)00201-6 Peat, 2001, Knee pain and osteoarthritis in older adults: a review of community burden and current use of primary health care, Ann Rheum Dis, 60, 91, 10.1136/ard.60.2.91 Andriacchi, 1980, A study of lower-limb mechanics during stair-climbing, J Bone Joint Surg Am, 62, 749, 10.2106/00004623-198062050-00008 McFadyen, 1988, An integrated biomechanical analysis of normal stair ascent and descent, J Biomech, 21, 733, 10.1016/0021-9290(88)90282-5 Robbins, 2011, Association of pain with frequency and magnitude of knee loading in knee osteoarthritis, Arthritis Care Res, 63, 991, 10.1002/acr.20476 Henriksen, 2006, Increased joint loads during walking: a consequence of pain relief in knee osteoarthritis, Knee, 13, 445, 10.1016/j.knee.2006.08.005 O’Reilly, 2000, Occupation and knee pain: a community study, Osteoarthritis Cartilage, 8, 78, 10.1053/joca.1999.0274 Bellamy, 1988, 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, 15, 1833 Wolfe, 1999, Rasch analysis of the Western Ontario MacMaster Questionnaire (WOMAC) in 2205 patients with osteoarthritis, rheumatoid arthritis, and fibromyalgia, Ann Rheum Dis, 58, 563, 10.1136/ard.58.9.563 Jin, 2015, Circulating C-reactive protein in osteoarthritis: a systematic review and meta-analysis, Ann Rheum Dis, 74, 703, 10.1136/annrheumdis-2013-204494 Sharif, 2000, Increased serum C reactive protein may reflect events that precede radiographic progression in knee osteoarthritis, Ann Rheum Dis, 59, 71, 10.1136/ard.59.1.71 Zhang, 2018, BMC Musculoskeletal Disorders, 19, 3 Gheita, 2015, Cartilage oligomeric matrix protein (COMP) levels in serum and synovial fluid in osteoarthritis (OA) patients: Correlation with clinical, radiological and laboratory parameters, Osteoarthr Cartil, 23, A85, 10.1016/j.joca.2015.02.787 Altman, 1991, Criteria for classification of clinical osteoarthritis, J Rheumatol, 18, 10 McConnell, 2001, The western Ontario and McMaster Universities osteoarthritis index (WOMAC): a review of its utility and measurement properties, Arthr Rheumatol, 45, 453, 10.1002/1529-0131(200110)45:5<453::AID-ART365>3.0.CO;2-W Kellgren, 1957, Radiological assessment of osteo-arthrosis, Ann Rheum Dis., 16, 494, 10.1136/ard.16.4.494 Shakoor, 2008, Pain and its relationship with muscle strength and proprioception in knee OA: results of an 8-week home exercise pilot study, J Musculoskelet Neuronal Interact, 8, 35 Trudeau, 2015, Assessment of pain and activity using an electronic pain diary and actigraphy device in a randomized, placebo-controlled crossover trial of celecoxib in osteoarthritis of the knee, Pain Practice., 15, 247, 10.1111/papr.12167 Grace, 2015, Symptom assessment in knee osteoarthritis needs to account for physical activity level, Arthr Rheumatol, 67, 2897, 10.1002/art.39271 Hensor, 2015, Toward a clinical definition of early Osteoarthritis: onset of patient-reported knee pain begins on stairs. Data from the Osteoarthritis Initiative, Arthr Care Res, 67, 40, 10.1002/acr.22418 Pearle, 2007, Elevated -high sensitivity C-reactive protein levels are associated with local inflammatory findings in patients with osteoarthritis, Osteoarthritis Cartil, 15, 516, 10.1016/j.joca.2006.10.010 Saberi Hosnijeh, 2016, Association between biomarkers of tissue inflammation and progression of osteoarthritis: evidence from the Rotterdam study cohort, Arthr Res Ther, 18, 81, 10.1186/s13075-016-0976-3 Jinks, 2002, Measuring the population impact of knee pain and disability with the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Pain, 100, 55, 10.1016/S0304-3959(02)00239-7 Keenan, 2006, Impact of multiple joint problems on daily living tasks in people in the community over age fifty-five, Arthr Rheum, 55, 757, 10.1002/art.22239 Marmon, 2013, Perception and presentation of function in patients with unilateral versus bilateral knee osteoarthritis, Arthr Care Res, 65, 40, 10.1002/acr.21825 Metcalfe, 2012, Is knee osteoarthritisa symmetrical disease? Analysis of a 12 year prospective cohort study, BMC Musculoskeletal Disorders, 13, 153, 10.1186/1471-2474-13-153 Messier, 2016, Are unilateral and bilateral knee osteoarthritis patients unique subsets of knee osteoarthritis? A biomechanical perspective, Osteoarthr Cartil, 24, 807, 10.1016/j.joca.2015.12.005 Hassan WA, Mansour AI. Increased serum and synovial levels of midkine are associated with radiological progression in primary knee osteoarthritis patients. Egyptian Rheumatol 2018; epub ahead of print. El-Najjar AR, Ezzeldin N, Khalil SS, El-Gerby KM, Alazizi NM, Ibraheem HA. Vascular endothelial growth factor and colour Doppler ultasonography in knee osteoarthritis: Relation to pain and physical function. Egyptian Rheumatol 2018;epub ahead of print. Mahmoud GA, Moghazy A, Fathy S, Niazy MH. Osteoarthritis knee –hip quality of life questionnaire assessment in Egyptian primary knee osteoarthritis patients: Relation to clinical and radiographic parameters. Egyptian Rheumatol 2018;epub ahead of print. Nawito, 2018, Nottingham health profile assessment of health-related quality of life in primary knee osteoarthritis: Relation to clinical features and radiographic score, Egyptian Rheumatol, 40, 265, 10.1016/j.ejr.2017.11.001 Zakaria, 2016, Micro RNA-146a expression, NF-kB/P65 activity and serum pentosidine levels as potential biomarkers for disease severity in primary knee osteoarthritis patients, Egyptian Rheumatol, 38, 319, 10.1016/j.ejr.2016.02.001