The effect of incorrect foot placement on the accuracy of radiographic measurements of the hallux valgus and inter-metatarsal angles for treating hallux valgus

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dc.authorid0000-0001-6742-8464
dc.authorid0000-0003-3976-9530
dc.authorid0000-0001-8437-5405
dc.authorid0000-0002-4565-2315
dc.authorid0000-0002-8053-2239
dc.contributor.authorErdil, Mehmet Emin
dc.contributor.authorKuyucu, Ersin
dc.contributor.authorCeylan, Hasan Hüseyin
dc.contributor.authorSürücü, Serkan
dc.contributor.authorFont Erdil, İrem
dc.contributor.authorKara, Adnan
dc.contributor.authorGülenç, Barış
dc.contributor.authorBülbül, Murat
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:35:22Z
dc.date.available10.07.201910:49:14
dc.date.available2019-07-10T19:35:22Z
dc.date.issued2017
dc.departmentİstanbul Medipol Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Ortopedi ve Travmatoloji Ana Bilim Dalı
dc.description.abstractPURPOSE OF THE STUDY Accurate radiographic measurements are crucial in treating hallux valgus (HV). This three-dimensional deformity should not be evaluated from one joint on one plane. However, in practice, surgeons measure the deformity only on transverse dorsoplantar radiographs. We determined the amount of error associated with positioning the foot incorrectly on radiographs. MATERIAL AND METHODS To simulate incorrect positions of the foot in radiographic evaluation, we designed an angled device that can move in transverse and frontal plane. In four patients with symptomatic HV, we took weight-bearing radiographs of the involved foot in seven different positions. These 28 radiographs were given identifying but meaningless labels. On each radiograph, six surgeons blinded to the position of the radiograph measured the HV angle (HVA) and the inter-metatarsal angle (IMA) and state the treatment plan according to five treatment options were given to participants. RESULTS Inter-observer agreement was high for measurements of HVA and IMA in all positions (interclass correlation coefficients, 0.96 and 0.88, respectively). However, intra-observer agreement was poor for HVA (intra-observer agreement, 0.17) but good for IMA (intra-observer agreement, 0.64). According to the measurements in different positions, intra-observer treatment choices revealed moderate results (ICC: 0.524). Clinical Relevance Radiographic measurements are very important on the treatment decisions of hallux valgus. The foot position can influence the measurement accuracy and can cause incorrect decisions. In this study, we evaluated the impact of foot positions on measurements of hallux valgus angle and inter-metatarsal angle. Additionally, we evaluated the incorrect foot positioning on treatment decisions. Moreover, we analyzed intra-observer and inter-observer agreements of these angles in various positions. CONCLUSIONS We recommend that measurements of IMA are more reliable than those of HVA for managing hallux valgus in terms of false weight bearing radiographs taken in different positions. Positional changes during foot radiographs could lead clinicians to perform incorrect HVA and IMA measurements. This could change the treatment option. HVA measurements were more affected with foot positioning. It is important to take full weight bearing foot radiographs in correct technique.
dc.identifier.citationErdil, M. E., Kuyucu, E., Ceylan, H. H., Sürücü, S., Font Erdil, İ., Kara, A. … Bülbül, M. (2017). The effect of incorrect foot placement on the accuracy of radiographic measurements of the hallux valgus and inter-metatarsal angles for treating hallux valgus. Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca, 84(3), 196-201.
dc.identifier.endpage201
dc.identifier.issn0001-5415
dc.identifier.issue3
dc.identifier.scopusqualityQ3
dc.identifier.startpage196
dc.identifier.urihttps://hdl.handle.net/20.500.12511/741
dc.identifier.volume84
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherGalen S.R.O.
dc.relation.ispartofActa Chirurgiae Orthopaedicae et Traumatologiae Cechoslovacaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectData Accuracy
dc.subjectHallux Valgus
dc.subjectRadiology
dc.titleThe effect of incorrect foot placement on the accuracy of radiographic measurements of the hallux valgus and inter-metatarsal angles for treating hallux valgus
dc.title.alternativeVliv nesprávné polohy nohy na presnost radiologického merení deformity a intermetatarzálních úhlu pri lécení hallux valgus
dc.typeArticle

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