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Review
. 2016 Aug;474(8):1886-93.
doi: 10.1007/s11999-016-4732-4. Epub 2016 Feb 12.

Classifications in Brief: Kellgren-Lawrence Classification of Osteoarthritis

Mark D Kohn  1 , Adam A Sassoon  1 , Navin D Fernando  2
Affiliations
Review

Classifications in Brief: Kellgren-Lawrence Classification of Osteoarthritis

Mark D Kohn et al. Clin Orthop Relat Res. 2016 Aug.
No abstract available

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Figures

Fig. 1A–D
Fig. 1A–D
AP radiographs of the knee presented in the original Kellgren-Lawrence article [19]. (A) Representative knee radiograph of KL classification Grade 1, which demonstrates doubtful narrowing of the joint space with possible osteophyte formation. (B) Representative knee radiograph of KL classification Grade 2, which demonstrates possible narrowing of the joint space with definite osteophyte formation. (C) Representative knee radiograph of KL classification Grade 3, which demonstrates definite narrowing of joint space, moderate osteophyte formation, some sclerosis, and possible deformity of bony ends. (D) Representative knee radiograph of KL classification Grade 4, which demonstrates large osteophyte formation, severe narrowing of the joint space with marked sclerosis, and definite deformity of bone ends. Reprinted with permission from Kellgren JH, Lawrence JS. Radiological assessment of osteo-arthrosis. Ann Rheum Dis. 1957;16:494–502.
Fig. 2
Fig. 2
Diagram of how the Rosenberg radiograph would be set up and performed [28]. Reprinted with permission from Rosenberg TD, Paulos LE, Parker RD, Coward DB, Scott SM. The forty-five-degree posteroanterior flexion weight-bearing radiograph of the knee. J Bone Joint Surg Am. 1988;70:1479–1483.
See this image and copyright information in PMC

References

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