Ishii Yosuke, Deie Masataka, Fujita Naoto, Kurumadani Hiroshi, Ishikawa Masakazu, Nakamae Atsuo, Hayashi Seiju, Hata Jiro, Adachi Nobuo, Sunagawa Toru
Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan.
Department of Orthopedic Surgery, Aichi Medical University, Aichi, Japan.
Knee. 2017 Dec;24(6):1408-1413. doi: 10.1016/j.knee.2017.09.001. Epub 2017 Sep 30.
It is known that a lateral wedge insole (LWI) decreases medial loading stress in the knee. Medial meniscus pathology, such as a degenerative tear or a root tear, leading to malfunction and medial meniscus extrusion (MME), is a critical condition that leads to severe osteoarthritis (OA). However, the effect of LWI on MME is still unknown. The objective of this study was to investigate the effect of LWI use on MME in knee OA using ultrasonography.
Thirty-one knees from 18 patients with knee OA diagnosed radiographically were allocated to the OA group (mean age, 73.6years; sex M:F, 2:16). Twenty-two knees from 11 volunteers without knee OA were also enrolled as an age-matched control group. MME was evaluated using ultrasonography with the patients in three positions: supine, standing without LWI, and standing with LWI.
In both groups, the mean values of the MME increased significantly when patients were in the standing position compared to the supine position. In the OA group, MME significantly decreased with LWI use. There was no significant difference in MME between use and non-use of an LWI in the control group.
The LWI could significantly decrease MME in patients with knee OA.
已知外侧楔形鞋垫（LWI）可降低膝关节内侧的负荷应力。内侧半月板病变，如退行性撕裂或根部撕裂，会导致功能障碍和内侧半月板挤出（MME），这是一种导致严重骨关节炎（OA）的关键病症。然而，LWI对MME的影响仍不清楚。本研究的目的是使用超声检查来研究LWI对膝关节OA患者MME的影响。
将18例经影像学诊断为膝关节OA患者的31个膝关节分配至OA组（平均年龄73.6岁；性别男：女，2：16）。还招募了11名无膝关节OA的志愿者的22个膝关节作为年龄匹配的对照组。使用超声检查在三个位置对患者进行MME评估：仰卧位、不使用LWI站立位和使用LWI站立位。
在两组中，与仰卧位相比，患者站立位时MME的平均值均显著增加。在OA组中，使用LWI后MME显著降低。对照组中使用和不使用LWI时MME无显著差异。
LWI可显著降低膝关节OA患者的MME。
