@article{Braza_Salomão Barbachan Mansur_Mallavarapu_Alencar Mendes de Carvalho_Dibbern_Augusto de Souza Nery_Laleveé_de César Netto_2021, title={Hallux valgus measurements using weight-bearing computed tomography: what changes?}, volume={15}, url={https://jfootankle.com/JournalFootAnkle/article/view/1600}, DOI={10.30795/jfootankle.2021.v15.1600}, abstractNote={<p><strong>Objective: </strong><span style="font-weight: 400;">To assess whether traditional hallux valgus (HV) measurements obtained with conventional radiography (CR) correspond to those obtained with weight-bearing computed tomography (WBCT). </span><strong>Methods: </strong><span style="font-weight: 400;">In this retrospective case-control study, 26 HV feet and 20 control feet were analyzed with CR and WBCT. Hallux valgus angle (HVA), intermetatarsal angle (IMA), interphalangeal angle (IPA), distal metatarsal articular angle (DMAA), sesamoid station (SS), and first metatarsal head shape were measured. Chi-square tests were used to compare hallux valgus and control patients. T-tests were used to compare CR and WBCT. P-values less than 0.05 were considered significant. </span><strong>Results: </strong><span style="font-weight: 400;">WBCT was capable of discriminating patients with HV from controls, showing higher mean values for HV patients than controls in HVA (35.29 and 9.02, p < 0.001), IMA (16.01 and 10.01, p < 0.001), and DMAA (18.90 and 4.10, p < 0.001). When comparing the two methods, differences were not significant between CR and WBCT measurements in HVA (-0.84, p = 0.79), IMA (-0.93, p = 0.39), IPA (1.53, p = 0.09), or SS (p = 0.40), but were significant for DMAA (13.43, p < .0001). CR analysis yielded varied metatarsal head shapes, while all WBCT shape classifications were round.  </span><strong>Conclusion: </strong><span style="font-weight: 400;">Unidimensional HV measurements were similar between WBCT and CR, while more three-dimensional findings were not. CR may be used to assess the axial aspects of HV, but multidimensional aspects of the deformity may not be accurately assessed with plain radiographs. </span><em><strong>Level of Evidence III; Therapeutic Studies;</strong> <strong>Retrospective Case-Control Study.</strong></em></p>}, number={3}, journal={Journal of the Foot & Ankle}, author={Braza, Samuel and Salomão Barbachan Mansur, Nacime and Mallavarapu, Vineel and Alencar Mendes de Carvalho, Kepler and Dibbern, Kevin and Augusto de Souza Nery, Caio and Laleveé, Matthieu and de César Netto, César}, year={2021}, month={Dec.}, pages={259–264} }