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Related Experiment Video

Updated: Jul 12, 2025

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research
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Why some Patients Benefit from Participating in a Sham Surgery Trial.

Ali B Abbasi1, Adam S Cifu2

  • 1Department of Surgery, University of California at San Francisco, San Francisco, CA.

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PubMed
Summary

Patients often benefit from participating in sham surgery trials. This is because the harms of the sham procedure are typically lower than the harms of the full procedure, especially if it proves ineffective.

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Area of Science:

  • Medical Ethics
  • Surgical Research Methodology

Background:

  • Sham-controlled trials are crucial for evaluating surgical procedures but are ethically debated.
  • Current ethical analyses often overlook the harms of the studied procedure, focusing only on sham harms.

Purpose of the Study:

  • To analyze the ethics of sham surgery trials using a utilitarian framework.
  • To determine if patients can derive benefits from participating in sham surgery trials.

Main Methods:

  • Development of a theoretical model to quantify patient harms and benefits.
  • Inclusion of both sham procedure harms and intervention harms/benefits in the analysis.

Main Results:

  • Sham trials can yield net benefits when the intervention is ineffective, as sham harms are lower than full procedure harms.
  • When the intervention is effective, the main harm to sham participants is delayed treatment.

Conclusions:

  • Patients frequently benefit from sham surgery trials due to lower sham procedure risks compared to potentially ineffective interventions.
  • The ethical considerations of sham surgery trials require re-evaluation based on these findings.