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. 2023 Jul 25;8(3):24730114231188123. doi: 10.1177/24730114231188123

Table 1.

Hattrup and Johnson Radiographic Classification of Hallux Rigidus.

Grade Radiographic Findings
I Mild to moderate osteophyte formation, preservation of joint space
II Moderate osteophyte formation, joint space narrowing, subchondral sclerosis
III Marked osteophyte formation, severe loss of joint space, subchondral cyst formation