English translation: Marginal arthritic deformities
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Explanation: arthrosis is used more commonly, although I have also found the adjectival form. Arthrosis is an articulation or joint, or it can also mean the degenerative process in a joint.
Gould-Chiampo (for arthrosis)
You can also find a number of sites (Yahoo, Google, whatever you prefer) with the combination of arthrosis + deformation.