MRI assessment of knee osteoarthritis: Knee Osteoarthritis Scoring System (KOSS)?inter-observer and intra-observer reproducibility of a compartment-based scoring system

Felson DT, Naimark A, Anderson J, Kazis L, Castelli W, Meenan RF. The prevalence of knee osteoarthritis in the elderly. The Framingham Osteoarthritis Study. Arthritis Rheum 1987; 30:914?918.

Recht M, Bobic V, Burstein D, et al. Magnetic resonance imaging of articular cartilage. Clin Orthop 2001; 391 (Suppl):S379?S396.

Peterfy CG, Genant HK. Emerging applications of magnetic resonance imaging in the evaluation of articular cartilage. Radiol Clin North Am 1996; 34:195?213, ix.

Eckstein F, Reiser M, Englmeier KH, Putz R. In vivo morphometry and functional analysis of human articular cartilage with quantitative magnetic resonance imaging: from image to data, from data to theory. Anat Embryol (Berl) 2001; 203:147?173.

Peterfy CG. Scratching the surface: articular cartilage disorders in the knee. Magn Reson Imaging Clin North Am 2000; 8:409?430.

McCauley TR, Kornaat PR, Jee WH. Central osteophytes in the knee: prevalence and association with cartilage defects on MR imaging. AJR Am J Roentgenol 2001; 176:359?364.

Ostergaard M, Stoltenberg M, Henriksen O, Lorenzen I. The accuracy of MRI-determined synovial membrane and joint effusion volumes in arthritis. A comparison of pre- and post-aspiration volumes. Scand J Rheumatol 1995; 24:305?311.

Ostergaard M, Stoltenberg M, Lovgreen-Nielsen P, Volck B, Jensen CH, Lorenzen I. Magnetic resonance imaging-determined synovial membrane and joint effusion volumes in rheumatoid arthritis and osteoarthritis: comparison with the macroscopic and microscopic appearance of the synovium. Arthritis Rheum 1997; 40:1856?1867.

Vincken PW, ter Braak BP, van Erkell AR, et al. Effectiveness of MR imaging in selection of patients for arthroscopy of the knee. Radiology 2002; 223:739?746.

Shahriaree H. Chondromalacia. Contemp Orthop 1985; 11:27?39.

Outerbridge RE. The etiology of chondromalacia patellae. Clin Orthop 2001; 389:5?8.

Disler DG, McCauley TR, Kelman CG, et al. Fat-suppressed three-dimensional spoiled gradient-echo MR imaging of hyaline cartilage defects in the knee: comparison with standard MR imaging and arthroscopy. AJR Am J Roentgenol 1996; 167:127?132.

Potter HG, Linklater JM, Allen AA, Hannafin JA, Haas SB. Magnetic resonance imaging of articular cartilage in the knee. An evaluation with use of fast-spin-echo imaging. J Bone Joint Surg Am 1998; 80:1276?1284.

Boegard TL, Rudling O, Petersson IF, Jonsson K. Magnetic resonance imaging of the knee in chronic knee pain. A 2-year follow-up. Osteoarthritis Cartilage 2001; 9:473?480.

McNicholas MJ, Brooksbank AJ, Walker CM. Observer agreement analysis of MRI grading of knee osteoarthritis. J R Coll Surg Edinb 1999; 44:31?33.

Biswal S, Hastie T, Andriacchi TP, Bergman GA, Dillingham MF, Lang P. Risk factors for progressive cartilage loss in the knee: a longitudinal magnetic resonance imaging study in forty-three patients. Arthritis Rheum 2002; 46:2884?2892.

Bredella MA, Tirman PF, Peterfy CG, et al. Accuracy of T2-weighted fast spin-echo MR imaging with fat saturation in detecting cartilage defects in the knee: comparison with arthroscopy in 130 patients. AJR Am J Roentgenol 1999; 172:1073?1080.

Link TM, Steinbach LS, Ghosh S, et al. Osteoarthritis: MR imaging findings in different stages of disease and correlation with clinical findings. Radiology 2003; 226:373?381.

Peterfy CG. Imaging of the disease process. Curr Opin Rheumatol 2002; 14:590?596.

Kellgren JH, Lawrence RC. Radiographic assessment of osteoarthritis. Ann Rheum Dis 1957; 16:494?502.

Yulish BS, Montanez J, Goodfellow DB, Bryan PJ, Mulopulos GP, Modic MT. Chondromalacia patellae: assessment with MR imaging. Radiology 1987; 164:763?766.

Mink JH, Deutsch AL. Occult cartilage and bone injuries of the knee: detection, classification, and assessment with MR imaging. Radiology 1989; 170:823?829.

Stoller DW, Martin C, Crues JV, III, Kaplan L, Mink JH. Meniscal tears: pathologic correlation with MR imaging. Radiology 1987; 163:731?735.

Lewandrowski KU, Muller J, Schollmeier G. Concomitant meniscal and articular cartilage lesions in the femorotibial joint. Am J Sports Med 1997; 25:486?494.

Altman DG. Practical statistics for medical research. London: Chapman & Hall, 1991.

Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics 1977; 33:159?174.

Armitage P, Berry G. Statistical methods in medical research, 3rd edn. Oxford: Blackwell Science, 1994.

Wildy KS, Zaim S, Peterfy CG, Newman AB, Kritchevsky S, Nevitt M. Reliability of the Whole-Organ MRI Scoring (WORMS) Method for knee OA in a multi-center study. Arthritis Rheum 2001; 44 (Suppl 9):S155.

Sonin AH, Pensy RA, Mulligan ME, Hatem S. Grading articular cartilage of the knee using fast spin-echo proton density-weighted MR imaging without fat suppression. AJR Am J Roentgenol 2002; 179:1159?1166.

Ostergaard M, Klarlund M, Lassere M, et al. Interreader agreement in the assessment of magnetic resonance images of rheumatoid arthritis wrist and finger joints: an international multicenter study. J Rheumatol 2001; 28:1143?1150.

McCauley TR, Recht MP, Disler DG. Clinical imaging of articular cartilage in the knee. Semin Musculoskelet Radiol 2001; 5:293?304.

Recht MP, Resnick D. MR imaging of articular cartilage: current status and future directions. AJR Am J Roentgenol 1994; 163:283?290.

Recht MP, Piraino DW, Paletta GA, Schils JP, Belhobek GH. Accuracy of fat-suppressed three-dimensional spoiled gradient-echo FLASH MR imaging in the detection of patellofemoral articular cartilage abnormalities. Radiology 1996; 198:209?212.