What are the considerations for a biomaterial which is to be used as an orthopedic implant?
An ideal orthopedic biomaterial is expected to mimic the architectural complexity as well as the physical and mechanical properties of the bone. These are the primary requirements to withstand loading during movement without introducing bone resorption caused by the stress shielding effect.
What are orthopedic implants made of?
The metals that are used in orthopedic implants are stainless steel, cobalt-based alloys, and titanium. Stainless steel is often used to replace structures that have naturally degraded or have incurred trauma. One example is replacing bone tissue that has worn down due to osteoporosis.
What materials have been suggested for use in making of drug release orthopedic implants?
Metals used in orthopedic implants include surgical grade stainless steel (commonly 316L), cobalt-chromium (Co-Cr) alloys and pure commercial titanium (Ti) or titanium alloys.
Which of the following can be used in orthopedic implants?
Titanium is a common metal used for implantation in orthopedic surgery. While titanium is a metallic element, the majority of orthopedic “titanium implants” are, in fact, alloys. These alloys are typically proprietary blends – differing from manufacturer to manufacturer.
What are examples of biomaterials?
Examples of biomaterials include metals, ceramics, glass, and polymers. These biomaterials can be found in things such as contact lenses, pacemakers, heart valves, orthopedic devices, and much more.
What are the side effects of titanium implants?
You may experience pain, numbness, and a tingling feeling in your mouth, from your teeth to your lips, gums and even chin. This could be caused by the damage of your nerves or the surrounding structures of the titanium implant during the surgery.
What metal is used in medical implants?
Aluminum is used as a major alloying element with titanium for orthopedic applications. The ceramics used in orthopedic implants also contain aluminum oxide and calcium phosphates. Chromium is used in cobalt-chromium-molybdenum alloys. It is known for imparting corrosion resistance to the alloy.
Why are there no porous stainless steel implants?
Note: Stainless steel is not commonly used in porous form since it is not as corrosive resistant as Ti, Co-Cr and their alloys (Simske et al., 1997). … The extent to which a textured or porous material can influence the host tissue response is related to pore size and porosity.
Why titanium is used in implants?
Titanium is stronger and lighter in weight compared to stainless steel. Titanium has a large resistance to repeated loads making it ideal for its application as an implant. Titanium has greater superior strength under repeated load stresses, making this metal capable of withstanding strain during internal fixation.
Which drugs used in implants?
- Silicon Dioxide.
- Drug Release.
What material is used in artificial joints?
It is generally accepted that artificial joint materials include metal, polymer and bioceramics. Ultra-high-molecular-weight polyethylene (UHMWPE) is the main polymer used for joints, and it is widely used as acetabular cup material due to its superior biocompatibility, high impact strength and non-toxicity.
What are the types of implants?
Types of Dental Implants
- Endosteal Implants. Endosteal implants are the most common type of dental implant. …
- Subperiosteal Implants. Another type of dental implant is Subperiosteal Implants. …
- Zygomatic Implants. …
- Bone Augmentation. …
- Sinus Lift. …
- Ridge Expansion.
What metal is used for joint replacement?
The three alloy metals currently used are stainless steel, cobalt-chromium and titanium alloys. The main characteristics and mechanical properties of these alloys are explored in this chapter. Tantalum trabecular metal is also discussed owing to its attractive qualities of corrosion resistance and biocompatibility.