Nanotechnology: current concepts in orthopaedic surgery and future directions

Area of Science:

• Materials Science
• Biomedical Engineering
• Nanotechnology

Background:

• Nanotechnology involves manipulating materials with grain sizes under 100 nm.
• At this scale, quantum mechanics govern material properties like conductivity and reactivity.
• A key feature is the increased surface area to volume ratio, enhancing cellular interactions.

Purpose of the Study:

• To explore the potential applications of nanotechnology in orthopaedic surgery.
• To investigate how nanophase materials can improve implant-host bone interactions.
• To review the use of nanophase materials in various orthopaedic treatments.

Main Methods:

• Review of basic science and translational research on nanophase materials.
• Analysis of nanophase material properties relevant to biological systems.
• Examination of specific applications such as osseointegration, antibacterial coatings, tumor reconstruction, wound healing, nerve repair, and anti-inflammatory effects.

Main Results:

• Nanophase materials improve osseointegration by matching native bone architecture.
• Nanophase coatings reduce bacterial adhesion on prostheses.
• Specific nanophase materials show promise in tumor reconstruction (selenium), wound management (silver), nerve injury (silver), and tendon inflammation (gold).

Conclusions:

• Nanotechnology presents significant potential for advancing orthopaedic surgery and treatments.
• Further research into health risks associated with nanophase devices is crucial before clinical approval.
• Nanophase materials offer improved implant performance and novel therapeutic applications.