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The effect of subcutaneous nerve stimulation (SCNS) on pain associated with osteoarthritis of the hip
Cottingham B, Phillips PD, Davies GK, Getty CJ
Pain 1985 Jul;22(3):243-248
clinical trial
5/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

A novel form of subcutaneous nerve stimulation (SCNS) was recently introduced for the relief of chronic pain. We present a study using this form of SCNS applied over the radial, median and saphenous nerves in patients with clinically diagnosed osteoarthritis of the hip. Acceptable pain relief was obtained in 60% of patients receiving stimulation, however, comparable analgesia was achieved in a control group, who received no electrical stimulation through similarly placed needles. We suggest that these results may be explained by the ability of SCNS to evoke a placebo response. The efficacy of the placebo effect and the ethical implications of its use in clinical practice are discussed.

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