Inter- and intraobserver reliability of non-weight-bearing foot radiographs compared with CT in Lisfranc injuries
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TRAUMA SURGERY
Inter‑ and intraobserver reliability of non‑weight‑bearing foot radiographs compared with CT in Lisfranc injuries Ville T. Ponkilainen1 · Nikke Partio2 · Essi E. Salonen2 · Antti Riuttanen2 · Emma‑ Liisa Luoma2 · Gilber Kask2 · Heikki‑Jussi Laine2 · Heikki Mäenpää2 · Outi Päiväniemi2 · Ville M. Mattila1,2,3 · Heidi H. Haapasalo2 Received: 25 October 2019 © The Author(s) 2020
Abstract Background Injury of the tarsometatarsal (TMT) joint complex, known as Lisfranc injury, covers a wide range of injuries from subtle ligamentous injuries to severely displaced crush injuries. Although it is known that these injuries are commonly missed, the literature on the accuracy of the diagnostics is limited. The diagnostic accuracy of non-weight-bearing radiography (inter- or intraobserver reliability), however, has not previously been assessed among patients with Lisfranc injury. Methods One hundred sets of foot radiographs acquired due to acute foot injury were collected and anonymised. The diagnosis of these patients was confirmed with a CT scan. In one-third of the radiographs, there was no Lisfranc injury; in onethird, a nondisplaced (
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