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- Title
Early stage and small medial osteochondral lesions of the talus in the presence of chronic lateral ankle instability: A retrospective study.
- Authors
Ikoma, Kazuya; Kido, Masamitsu; Maki, Masahiro; Imai, Kan; Hara, Yusuke; Ikeda, Ryosuke; Ohashi, Suzuyo; Shirai, Toshiharu; Kubo, Toshikazu
- Abstract
<bold>Background: </bold>In chronic lateral ankle instability (CLAI), the instability of the ankle joint results in repeated microtrauma to the articular cartilage. How the lesion condition or stage is affected by the presence of lateral instability in medial osteochondral lesions of the talus (OLT) is unclear. We aimed to examine whether CLAI is associated with the size and staging of medial OLT on radiographs, magnetic resonance (MR) images, and arthroscopy.<bold>Methods: </bold>Forty-five patients with medial OLTs in 45 ankles were reviewed. Radiographs were assessed for damage and lesion classification. The tibio-talar tilting angle (TTA) was measured. The patients were divided into two groups: the CLAI group and the stable group. The lesion classification on radiographs, MR images, and arthroscopy, and size on MR images were statistically compared.<bold>Results: </bold>The CLAI group had a mean TTA of 8.15 ± 3.41°, whereas the stable group had a mean TTA of 2.24 ± 1.64°. The CLAI group had a lower clinical score than the stable group at the initial visit to our clinic. The CLAI group presented with lesions of significantly shorter longitudinal and transverse diameters. Stages of medial OLT on radiographs, MR images, and arthroscopic evaluation were earlier in the CLAI group than those in the stable group.<bold>Conclusions: </bold>Patients with CLAI presented in the early stages of OLT and had significantly smaller lesions than those without CLAI. The patients without CLAI may be selected for surgery at an early phase.
- Subjects
ARTICULAR cartilage; ANKLE; PERONEAL tendons; JOINT hypermobility; MAGNETIC resonance imaging; MAGNETIC resonance; ANKLEBONE injuries; CHRONIC diseases; CARTILAGE diseases; RADIOGRAPHY; RETROSPECTIVE studies; ANKLEBONE; DISEASE complications
- Publication
Journal of Orthopaedic Science, 2020, Vol 25, Issue 1, p178
- ISSN
0949-2658
- Publication type
journal article
- DOI
10.1016/j.jos.2019.02.003