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Table 1 A six-point score to grade the radiographs

From: The effect of strontium ranelate on the healing of a fractured ulna with bone gap in rabbit

Grade

Radiographic description

Grade 1

Indicates no calcification at the fracture site.

Grade 2

Indicates patchy calcification

Grade 3

Indicates that the calcification takes on the appearance of the callus

Grade 4

Shows callus bridging across the fracture gap

Grade 5

Indicates continuity of bone trabeculae

Grade 6

Demonstrates remodeling to normal bone.