T. B. Sakti, N. K. P. Siagian, W. Kesuma, and A. M. H. Siagian, “Simultaneous Gradual Correction of Bilateral Late Onset Tibia Vara using High Tibial Osteotomy with a Mono-Axis Dynamic External Fixator: A Case Report”, Hip Knee J., vol. 3, no. 1, pp. 40–43, Feb. 2022.