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Title: [Clinical observation on distribution characteristics and rules of pain sensitivity points on body surface in patients with knee osteoarthritis].
Author: Xu GX, Zhou YM, Sun MS, Luo LJ, Liu XJ, Wang D, Zhao L, Cai DJ, Chen J, Zheng H, Ji LX, Cui J, Chang XR, Liang FR.
Journal: Zhongguo Zhen Jiu; 2020 Nov 12; 40(11):1198-1201. PubMed ID: 33788488.
Abstract:
OBJECTIVE: To observe the distribution characteristics and rules of pain sensitivity points on body surface in patients with knee osteoarthritis (KOA). METHODS: A total of 916 patients with KOA were selected in this study, the pain sensitivity points of local site of knee joint were probed by thumb palpation. Tape was used to measure the distance between the pain sensitivity points and the most nearby acupoints. The Wagner tenderness measuring instrument was used to measure the tenderness threshold of pain sensitivity points. RESULTS: A total of 3618 pain sensitivity points were probed, among them, 3338 pain sensitivity points were sensitized. The minimum sensitization degree was 1.00, the maximum sensitization degree was 3.39, while the average sensitization degree was (2.16±0.60). Pain sensitivity points were distributed 0.37-1.73 cun around the acupoints, the average distance was (1.26±0.20) cun. Most of the pain sensitivity points (48.7%) were around Yingu (KI 10), Ququan (LR 8) and Xuehai (SP 10). The number and sensitization degree of pain sensitivity points were associated with McGill pain questionnaire score of patients with KOA (P<0.001). CONCLUSION: The pain sensitivity points of patients with KOA may be the expansion effect of acupoint areas in the disease states, pain sensitivity points are more likely to appear on the medial side of knee joint. 目的：观察膝骨性关节炎（KOA）患者体表痛敏点分布特征与规律。方法：以916例KOA患者为研究对象，拇指触诊探测膝关节局部痛敏点，采用卷尺测量痛敏点与最近经穴的距离，Wagner压痛仪测量痛敏点的压痛阈值。结果：共探测3618个痛敏点，其中3338个痛敏点发生敏化，敏化程度最低1.00，最高3.39，平均（2.16±0.60）；痛敏点分布在经穴周围0.37～1.73寸，平均（1.26±0.20）寸；48.7%的痛敏点出现在阴谷、曲泉、血海周围；痛敏点数量和敏化程度与KOA患者麦吉尔疼痛问卷（McGill）评分具有相关性（P<0.001）。结论：KOA患者痛敏点可能是疾病状态下经穴面积扩大的效应，膝关节内侧更容易出现痛敏点。.

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