Radiographic clues to the unstable knee: are findings of trochlear dysplasia on lateral knee radiographs reliable and predictive of patellar dislocation?

Inconsistent repeatability of the Dejour classification of trochlear dysplasia due to the variability of imaging modalities: a systematic review

“…Of the remaining 1,810, a further 1,743 were irrelevant based on their title and/or abstract. Full‐text screening of the remaining 67 eligible studies resulted in exclusion of 37 irrelevant studies [1–3, 5, 6, 8–11, 13, 14, 21, 23–25, 28, 29, 32, 33, 37, 38, 42, 44–46, 51, 55–57, 60, 61, 63, 66–70], five studies that did not report intra‐ or inter‐observer agreement [2, 35, 43, 52, 61], four studies that were conference proceedings [40, 49, 53, 59], two studies that assessed agreement for classification systems other than Dejour classification [34, 48], one study that included skeletally immature patients [15], two studies that expressed inter‐observer agreement only as a percentage [36, 64], three studies that were not in English or French [12, 39, 71] and three studies that could not be retrieved [7, 19, 47]. No additional studies were identified from reference lists, which left ten relevant studies for data extraction [4, 6, 22, 30, 31, 39, 41, 54, 58, 65].…”

“…, five studies that did not report intra-or inter-observer agreement [2,35,43,52,61], four studies that were conference proceedings [40,49,53,59], two studies that assessed agreement for classification systems other than Dejour classification [34,48], one study that included skeletally immature patients [15], two studies that expressed inter-observer agreement only as a percentage [36,64], three studies that were not in English or French [12,39,71] and three studies that could not be retrieved [7,19,47].…”