Department of System Design Engineering, Faculty of Science and Technology, Keio University, Yokohama, Japan.
Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
JBJS Case Connect. 2020 Jan-Mar;10(1):e0418. doi: 10.2106/JBJS.CC.19.00418.
A 77-year-old woman with knee osteoarthritis (OA) complained of right (ipsilateral) knee pain for more than 5 years with gait asymmetry. The OA and quadriceps muscle weakness were more severe in the left (contralateral) knee, but she had no pain. Bracing of the left knee led to decreased gait asymmetry, as determined with an inertial measurement unit, and reduced pain in the right knee.
This case highlights the contralateral knee effect on ipsilateral chronic knee pain, possibly through gait asymmetry. These findings provide a mechanistic insight into knee OA-related pain in patients with gait asymmetry and suggest a new rehabilitative approach.
一位 77 岁的女性，患有膝关节骨关节炎（OA），主诉右膝（同侧）疼痛超过 5 年，步态不对称。左侧（对侧）膝关节的 OA 和股四头肌无力更为严重，但她没有疼痛。左侧膝关节支具的使用导致惯性测量单元测定的步态不对称性降低，并且右膝疼痛减轻。
本病例突出了对侧膝关节对同侧慢性膝关节疼痛的影响，可能通过步态不对称。这些发现为步态不对称的膝骨关节炎相关疼痛患者提供了一种机制上的深入了解，并提示了一种新的康复方法。
