Komatsu Daigo, Ikeuchi Kazuma, Kojima Toshihisa, Takegami Yasuhiko, Amano Takafumi, Tsuboi Masaki, Ishiguro Naoki, Hasegawa Yukiharu
a Department of Orthopaedic Surgery , Nagoya University Graduate School of Medicine , Aichi , Japan.
b Yoshida Orthopedic Hospital , Aichi , Japan.
Laterality. 2017 May;22(3):340-353. doi: 10.1080/1357650X.2016.1199560. Epub 2016 Jun 27.
There are few reports of the laterality in radiological knee osteoarthritis (ROA). This study aimed to evaluate laterality in terms of the minimum joint space width (mJSW) and osteophyte areas (OFs) in a cross-sectorial general population screen and elucidate the association between laterality and risk of osteoarthritis. We enrolled 330 participants (mean age 64.6 years) and examined the presence of ROA (Kellgren-Lawrence grade ≧ 2) laterality in terms of the mJSW and OF on the medial tibia using auto-measuring software. Moreover, we examined the association between laterality and leg dominance. The right and left medial mJSWs were 4.02 ± 0.98 mm and 4.05 ± 1.01 mm, respectively, showing no laterality; the laterals were also similar. The participants who had osteophytes ≥1 mm in the right, left, and bilateral knees were 15, 37, and 57 respectively, with osteophytes being significantly more common in the left knee. The OF was significantly larger in the left knee. Conversely, the medial and lateral mJSWs and OF did not differ according to leg dominance. The prevalence of ROA was higher and the OF was more pronounced in the left knee. However, the mJSW showed no laterality. Additionally, the mJSW and OF showed no differences according to leg dominance.
关于放射学膝关节骨关节炎（ROA）的左右侧差异的报道较少。本研究旨在通过对一个跨部门的普通人群进行筛查，从最小关节间隙宽度（mJSW）和骨赘面积（OF）方面评估左右侧差异，并阐明左右侧差异与骨关节炎风险之间的关联。我们招募了330名参与者（平均年龄64.6岁），使用自动测量软件检查了ROA（Kellgren-Lawrence分级≧2）在左右侧的情况，具体指标为胫骨内侧的mJSW和OF。此外，我们还研究了左右侧差异与腿部优势的关系。右侧和左侧胫骨内侧的mJSW分别为4.02±0.98毫米和4.05±1.01毫米，未显示出左右侧差异；外侧情况也类似。右侧、左侧和双侧膝关节有≥1毫米骨赘的参与者分别为15人、37人和57人，骨赘在左膝更为常见。左膝的OF明显更大。相反，mJSW和OF在左右侧并未因腿部优势而有所不同。ROA在左膝的患病率更高，OF也更明显。然而，mJSW未显示出左右侧差异。此外，mJSW和OF在左右侧也未因腿部优势而表现出差异。
