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Examples of trapeziometacarpal arthrosis according to each Sodha Grade. (A) Sodha Grade 1, no or nearly no trapeziometacarpal arthrosis. (B) Sodha Grade 2, definite trapeziometacarpal arthrosis but not severe. (C) Sodha Grade 2 or 3, definite trapeziometacarpal arthrosis which might be graded as severe. (D) Sodha Grade 3, severe trapeziometacarpal arthrosis.
