What is the Mako Knee Replacement Made Of?
The Mako robotic-arm assisted knee replacement system itself isn't made of a single material but rather comprises various components working in concert. It's crucial to differentiate between the surgical robot and the knee implant because the question often conflates the two. Let's break it down:
What is the Mako Robotic Arm Made Of?
The Mako robotic arm, used by surgeons during the procedure, is a sophisticated piece of medical equipment. It's constructed from high-strength, lightweight materials designed for precision and durability. These materials likely include:
- High-grade metals: Such as stainless steel or titanium alloys, for structural strength and resistance to wear and tear during surgical use.
- Plastics and Composites: For housing, casing, and non-load-bearing components. These materials offer a good balance of strength, lightness, and ease of manufacturing.
- Electronic components: Including various sensors, motors, and control systems. These are crucial for the robot's precise movements and feedback mechanisms.
The exact composition of these materials is proprietary information held by Stryker, the company that manufactures the Mako system.
What are Mako Knee Implants Made Of?
This is the more pertinent question regarding the "Mako knee replacement." The Mako system assists in the implantation of a knee replacement; it doesn't manufacture the implant itself. The implants used with the Mako system are typically made of:
- Metal Alloys: Primarily cobalt-chromium (CoCr) alloys or titanium alloys. These metals are chosen for their biocompatibility (meaning they're tolerated well by the body), high strength, and resistance to corrosion and wear. The metal components form the femoral (thigh bone) and tibial (shin bone) components of the implant.
- Polyethylene: A high-molecular-weight polyethylene (UHMWPE) plastic forms the articulating surface of the implant, which interacts with the metal components to allow for smooth joint movement. This plastic is specifically formulated for its durability and low friction properties.
- Ceramics (sometimes): While less common, some Mako knee implants might incorporate ceramic components, particularly in the femoral head. Ceramics offer excellent wear resistance but require careful handling.
The specific materials and their configuration can vary depending on the patient's individual needs and the surgeon's preference within the range of implants compatible with the Mako system.
What are the Benefits of the Mako System?
The Mako system itself isn't a material; it's a surgical tool. Its benefits include:
- Improved Accuracy: The robotic arm allows for more precise bone cuts and implant placement, potentially leading to better implant fit and function.
- Personalized Planning: Pre-operative CT scans are used to create a 3D model of the patient's knee, allowing surgeons to plan the surgery precisely and customize the implant to individual anatomy.
- Reduced Soft Tissue Trauma: The robotic system's precision can minimize soft tissue damage during surgery.
Remember to consult with your surgeon or orthopedic specialist for personalized information regarding your specific knee replacement surgery and the components used. They will be the best source of information tailored to your situation.
