There was no associated periosteal reaction
or soft-tissue mass.
Subsequent radiological study revealed a congruent reduction of the radial head, with a progressive periosteal reaction
of the posterior cortex of the ulna (Fig.
Other features include expansion of the surrounding bone, an intact thin cortex, and no periosteal reaction
or cortical breakdown.
Regardless, recognizing periosteal reaction
of any type remains important, as this effectively excludes several lesions from the differential.
A marked periosteal reaction
was also present, which extended proximally to the joint.
1) Cortical destruction often occurs, but periosteal reaction
During the healing phase, a laminated periosteal reaction
may be present.
A variable amount of periosteal reaction
can be present, ranging from a thick solid type to lamellated.
No soft tissue swelling or periosteal reaction
was associated with the lesion.
11) Later, five of these features were omitted from the final score: periosteal reaction
was too unusual; the quality of radiographs limited the capacity to describe cortical thinning and osteoporosis, and sclerosis and osteophyte formation appeared to be secondary changes.