Pain Research and Treatment / 2014 / Article / Fig 3

Clinical Study

Intra-Articular Analgesia and Steroid Reduce Pain Sensitivity in Knee OA Patients: An Interventional Cohort Study

Figure 3

Mean manual PPTs (95% CI, at tests 1, 2, and 3; at test 4) at the knee (filled circles) and the contralateral arm (control site—open triangles) before (baseline tests 1 and 2), immediately after (test 3), and two weeks after (test 4) the injection of lidocaine and glucocorticosteroid. PPT was significantly increased at the knee immediately after (test 3) ( ) and two weeks after (test 4) ( ), but not at the control site ( ), compared with baseline 2 (test 2).

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