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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
Scientific evaluation of spinal implants: an ethical necessity
Wouter A Moojen1, Annelien L Bredenoord, Roderik F Viergever
1*Department of Neurosurgery, Leiden University Medical Center, Leiden, the Netherlands †Department of Neurosurgery, Medical Center Haaglanden, The Hague, the Netherlands ‡Department of Medical Humanities, University Medical Center Utrecht, Utrecht, the Netherlands §Department for Health Evidence, Radboud University Medical Centre, Nijmegen, the Netherlands; and ¶Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom.
Novel medical devices, like spinal implants, need better oversight. Implementing prospective studies and registries can improve safety and efficacy evaluation for new medical innovations.
Area of Science:
- Medical Device Innovation
- Regulatory Science
- Surgical Research Ethics
Background:
- Clinical introduction of novel medical devices frequently lacks methodological rigor and adequate oversight.
- Insufficient knowledge regarding the safety, efficacy, and long-term effects of devices is common upon approval.
- Recent controversies with specific devices highlight ethical and regulatory gaps.
Purpose of the Study:
- To discuss the scientific and ethical challenges in developing, testing, and introducing novel medical devices.
- To identify improvements for regulatory frameworks governing medical device innovation.
- To use spinal implants as a case study for these challenges and solutions.
Main Methods:
- Analysis of scientific and ethical challenges in medical device innovation.
- Review of regulatory frameworks and their limitations.
- Case study focusing on the introduction of spinal implants.
- Identification of feasible short-term improvement measures.
Main Results:
- Novel medical devices are often introduced with limited evidence of quality and oversight.
- Safety, efficacy, and long-term impacts of devices are frequently not well-understood at approval.
- Spinal implants exemplify the challenges in device innovation and regulation.
Conclusions:
- Prospective studies prior to device introduction are crucial.
- Registries are essential for monitoring and evaluating new medical devices.
- Improving regulatory frameworks is necessary to ensure ethical innovation and patient safety.

