Multiplanar instability of the first tarsometatarsal joint in hallux valgus and hallux rigidus patients: a case–control study

Autor: Nacime Salomão Barbachan Mansur, Alexej Barg, Christian A. VandeLune, Hee Young Lee, Cesar de Cesar Netto, Matthieu Lalevee, John E. Femino, Kevin N. Dibbern
Rok vydání: 2021
Předmět:
Zdroj: International Orthopaedics. 46:255-263
ISSN: 1432-5195
0341-2695
Popis: Hypermobility of the first ray has been considered associated with various forefoot diseases including hallux valgus (HV) and hallux rigidus (HR). Weightbearing CT scan can be a reliable method for analysis of the first tarsometatarsal (TMT) joint in axial, sagittal, and coronal planes. Our objective was to comparatively investigate signs of instability of the first TMT joint on weightbearing CT between three groups (control, HV, and HR). In this single-centre, retrospective, case–control study, 27 HV patients (30 feet; mean age 54.2 years), 26 HR patients (30 feet; mean age 56.6 years), and 30 controls (30 feet; mean age; 43 years) were enrolled. Measurements of signs of instability were performed in multiplanes including first TMT angle, dorsal translation of the first metatarsal (M1) at the first TMT joint, plantar distance between the medial cuneiform (C1) and M1 in sagittal plane, hallux valgus angle (HVA), intermetatarsal angle (IMA) in axial plane, rotational profiles of C1 and M1 in coronal plane. Analysis of variance (ANOVA) test and chi-square test were performed to compare each parameter between the three groups. Interobserver reliabilities were assessed using interclass correlation coefficients (ICCs). The HV group had significantly increased first TMT angle (0.23° in controls, 1.15° in HV, 0.19° in HR, p
Databáze: OpenAIRE
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