PMC8782234_01
Radiograph at time of diagnosis. Periosteal and endosteal thickening of the dorsal cortex and sclerotic changes in the proximal third of the ulna.
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Radiography revealed periosteal and endosteal thickening of the dorsal cortex with sclerotic changes in the proximal third of the ulna ( Figure 1 ).
(A) Operative findings before plate fixation. White arrow head shows thickening of the ulnar cortex. (B) Operative findings after plate fixation. (C) Radiograph 2 years after surgery.
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Cortical thickening was observed between the extensor carpi ulnaris and flexor carpi ulnaris ( Figure 2A ). The locking plate (LC-LCP3.5; DePuy Synthes, Zeist, Netherlands) was bent to conform to the bone shape and fixed in position ( Figure 2B ). Furthermore, 2 years postoperatively, there was no limitation in the range of motion of the right upper extremity, no significant increase in cortical bone thickening was observed, and no fracture had occurred ( Figure 2C ).