Abstract
Purpose: The La Trobe radiographic atlas of foot osteoarthritis (OA), which was developed in 2009 to standardise the assessment of foot OA, incorporates observations of osteophytes (OP) and joint space narrowing (JSN) from dorsoplantar (DP) and lateral plain film x-rays. In some clinical and research contexts, two radiographic views may not be available, and this has the potential to affect the proportion of foot OA cases identified using this tool. Therefore, the purpose of this study was to compare the sensitivity of alternative case-finding approaches based on restricted x-ray views (DP or lateral only) or features (OP or JSN only).
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