Change in Radiation Sterilization Process from Gamma Ray to X-ray

Area of Science:

• Biomaterials Science
• Sterilization Technologies
• Orthopedic Device Manufacturing

Background:

• Terminal sterilization of orthopedic implants impacts material properties and packaging.
• Gamma sterilization is established but X-ray sterilization offers potential technical and business advantages.
• Understanding X-ray sterilization's effects is crucial for new process implementation.

Purpose of the Study:

• To establish X-ray sterilization as an additional process for metallic hip and shoulder implants.
• To compare material and functional changes induced by X-ray sterilization versus gamma sterilization.
• To highlight key steps in transitioning from gamma to X-ray sterilization.

Main Methods:

• Focused on a narrow product range of metallic hip and shoulder implants.
• Described the project journey for establishing X-ray sterilization.
• Evaluated changes in material properties and functionality post-sterilization.

Main Results:

• X-ray sterilization is a technically and commercially promising alternative.
• Key steps and considerations for transitioning sterilization methods were identified.
• Understanding material and functional changes is critical for successful implementation.

Conclusions:

• X-ray sterilization offers a viable alternative to gamma sterilization for orthopedic implants.
• Careful evaluation of material and functional changes is necessary during the transition.
• This project provides a roadmap for implementing new sterilization technologies.