著者

Hiroki Fujita Atsushi Teramoto Hiroyori Fusagawa Toshihiko Yamashita and Paulo Selber

出版者

The Japanese Association of Rehabilitation Medicine

雑誌

Progress in Rehabilitation Medicine (ISSN:24321354)

巻号頁・発行日

vol.8, pp.20230029, 2023 (Released:2023-09-20)

参考文献数

16

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Background: There are numerous etiologies relating to physeal arrest. The clinical manifestations of physeal arrest may include limb length discrepancy (LLD) and bone malalignment, especially in younger children with more growth ahead of them.Case: We performed three-dimensional gait analysis (3DGA) four times over a 13-year period in a boy aged from 9 to 22 years who was suffering from LLD and genu valgum. At the final follow-up, the patient’s LLD and coronal malalignment had been ameliorated on radiographic findings after multiple corrective surgeries, including the use of external fixation. In 3DGA, the patient’s Gait Profile Score (GPS) at age 12.5 years was poorest at 12.4°, improving to 8.4° at age 22.3, a change of 2.5 times the minimal clinically important difference. Assessment of kinetics showed a mean knee coronal moment during the stance phase of 0.17 (varus) and 0.20 (valgus) Nm/kg at the ages of 18.6 and 22.3 years, respectively. Importantly, this revealed significant improvement from the perspective of knee coronal moment (P <0.001).Discussion: This is the first report of long-term follow-up 3DGA using GPS in a patient undergoing multiple corrective surgeries for LLD and genu valgum. Although both LLD and genu valgum improved, gait function did not normalize. This shows that focusing on radiographic findings alone may not lead to improved patient outcomes and indicates the value of gait function assessment.

著者

Peiyi Zhang Atsushi Teramoto Takaaki Ohkubo

出版者

Japan Concrete Institute

雑誌

Journal of Advanced Concrete Technology (ISSN:13473913)

巻号頁・発行日

vol.18, no.9, pp.521-531, 2020-09-24 (Released:2020-09-24)

参考文献数

32

被引用文献数

6

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The adhesion failure of the interface between concrete and rendering mortars often leads to the degradation of the reinforced concrete building envelopes. Although several methods to improve the adhesion properties between concrete and rendering mortar have been proposed, there is no system to evaluate the effectiveness of these methods from the perspective of durability. To this end, this study proposed an experimental method to evaluate the durability of rendering mortar and concrete adhesion systems at the laboratory level. In this technique, a cyclic thermal load is applied to a part of the rendering mortar surface to accelerate the degradation; this part represents an external wall subjected to solar radiation. Subsequently, appropriate constraints are applied to the loaded part of the mortar to reproduce the actual degradation mechanism. Numerical simulation and experimental results support the effectiveness of the proposed accelerated degradation method. Considering the rate of decrease in the bond strength as a criterion to evaluate the durability, the influence of several known factors on the durability can be explicitly ranked. The durability assessment method can facilitate the comparison of novel solutions during the development stage.