Titanium rods, as the core material of surgical implants, are widely used in orthopedics, spinal surgery, and wound repair due to their excellent biocompatibility, mechanical properties, and corrosion resistance.

1、 Core advantages

1. Biocompatibility: The titanium surface oxide film has no rejection reaction with human tissues, and the incidence of inflammation is less than 1%.

2. Mechanical adaptability: The elastic modulus is close to that of bones, reducing stress shielding effects and promoting bone integration.

3. Corrosion resistance: Stable in body fluids, no risk of metal ion precipitation during long-term use.

2、 Main application scenarios

1. Orthopedic fixation

Long bone fractures: Titanium rods are used for intramedullary nails or plates to provide stable support, and usually do not need to be removed after healing.

Spinal fusion: As an intervertebral fusion device or posterior fixation rod, the low magnetic susceptibility of titanium alloy has less interference with MRI examination.

2. Joint reconstruction

Artificial joint stem: The titanium rod is designed with a porous structure to promote bone ingrowth, and the loosening rate of the prosthesis is reduced by 30% compared to traditional materials.

3. Craniofacial repair

Titanium mesh bracket: used for repairing skull defects, 3D printing technology can customize complex geometric shapes, with a fitting degree of over 95%.

3、 Potential risks and countermeasures

1. Mechanical complications: About 0.5% -1% of patients may experience implant loosening or fracture, requiring a second surgery.

2. Image interference: Titanium alloy may affect local MRI imaging, and scanning parameters need to be adjusted.

3. Allergic reactions: A very small number of people who are sensitive to titanium need to replace the material.

4、 Technological progress

Surface modification: Hydroxyapatite coating can accelerate osseointegration and shorten the healing cycle.

Additive manufacturing: The porosity of titanium rods produced by SLM technology is controllable, combining lightweight and mechanical strength.