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Related Experiment Video

Updated: Jul 8, 2026

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
09:07

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

A cost-benefit analysis using contingent valuation techniques: a feasibility study in spinal surgery.

Mathias Haefeli1, Achim Elfering, Emma McIntosh

  • 1Centre for Spinal Surgery, University of Zurich, Balgrist, Zurich, Switzerland.

Value in Health : the Journal of the International Society for Pharmacoeconomics and Outcomes Research
|January 9, 2008
PubMed
Summary

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This pilot study shows contingent valuation (CV) is feasible for assessing spinal surgery benefits. Discectomy and decompression appear cost-beneficial, unlike spinal fusion, suggesting patient willingness-to-pay varies by procedure.

Area of Science:

  • Health Economics
  • Spinal Surgery Outcomes
  • Patient-Reported Benefits

Background:

  • Limited data exists on patient valuation of spinal surgery benefits and cost-effectiveness.
  • Contingent valuation (CV) surveys elicit monetary valuations for program benefits in cost-benefit analysis (CBA).

Purpose of the Study:

  • To pilot the CV approach for identifying net benefits of spinal interventions.
  • To conduct a feasibility cost-benefit analysis (CBA) of spinal surgery using retrospective data.

Main Methods:

  • A retrospective CV survey with willingness-to-pay/willingness-to-accept (WTP/WTA) questions was administered to 115 post-operative spinal surgery patients.
  • Data on socio-demographics, income, clinical outcomes, and intervention costs were collected and analyzed within a CBA framework.

Related Experiment Videos

Last Updated: Jul 8, 2026

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
09:07

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

  • Bootstrapping methods generated 95% confidence intervals for net-benefit estimates.

    • Main Results:

    • The response rate was 91.3% (n=105), with high patient satisfaction (89.5%) and perceived good/excellent outcomes (76.2%).
    • Mean WTP was lower than actual costs for spinal fusion but higher for discectomy and decompression.
    • Patient financial situation, pain improvement, current pain, hospitalization duration, and estimated costs significantly predicted WTP.

    Conclusions:

    • The CV approach is feasible for evaluating spinal interventions, with positive net benefits suggested for discectomy and decompression.
    • Spinal surgery interventions like discectomy and decompression appear cost-beneficial, but spinal fusion results were inconclusive.
    • Further research comparing ex ante and ex post WTP methods is recommended to enhance reliability of net-benefit estimates.