Effects of high tibial osteotomy on the coronal, sagittal, and axial alignments of the ankle joint

Autor: Byung Hak Oh, Kyung Deok Seo, Hyun Jin Yoo, Min Gu Jang, Ji Seong Park, Jae Hwang Song
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Orthopaedic Surgery, Vol 32 (2024)
Druh dokumentu: article
ISSN: 2309-4990
10225536
DOI: 10.1177/10225536241273889
Popis: Background No comprehensive study has been conducted on the effects of high tibial osteotomy (HTO) on the coronal, sagittal, and axial alignments of the ankle joint. Therefore, this study aimed to investigate the multiplane changes in the ankle joint following HTO using the EOS biplanar X-ray imaging system. Methods The medical records of 43 patients who underwent HTO for the treatment of medial knee osteoarthritis were retrospectively reviewed. Preoperative and postoperative EOS images and lower-extremity scanograms were evaluated; the correlations between the outcomes were evaluated. Results After HTO, the ankle joint axis point on the weight-bearing line showed significant lateralization ( p < .001). The knee lateral ankle surface angle increased significantly in the sagittal alignment ( p < .001). The distal tibia showed a significant internal rotation in the axial plane ( p = .022). Tibial rotation showed no significant relationship with the other parameters. Conclusions HTO induced lateralization of the ankle joint axis (coronal), increased the posterior tibial slope (sagittal), and caused the internal rotation of the distal tibia (axial). Axial changes in the distal tibia showed no significant relationship with other coronal and sagittal parameters of the ankle joint. We suggest that surgeons should consider, during HTO, that the ankle joint axis shifts laterally and distal tibia has tendency to rotate internally after HTO.
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