Posterior-stabilized knee is a design type used in total knee replacement implants. It is intended to improve knee stability and motion when a key ligament is not preserved. It is most commonly discussed in the context of knee arthritis and knee arthroplasty planning. It uses a mechanical feature inside the implant to help guide the knee as it bends.

Hybrid fixation TKA is a total knee arthroplasty (knee replacement) technique that uses more than one fixation method to secure the implant. Most commonly, one major component is fixed with bone cement while another is designed for cementless “press-fit” fixation. It is used in knee replacement surgery for arthritis and other conditions that damage the knee joint surfaces. The goal is a stable implant now, with durable attachment to bone over time.

Cementless TKA is a type of total knee arthroplasty (total knee replacement) that uses implants designed to attach to bone without bone cement. It relies on bone growing onto or into a porous implant surface for long-term fixation. It is commonly used for knee arthritis and other joint conditions when a full joint replacement is indicated. It is performed in hospitals and surgical centers by orthopedic surgeons.

Cemented TKA is a type of total knee arthroplasty where the implant is fixed to bone using surgical “bone cement.” It is used to replace damaged knee joint surfaces to improve function and reduce symptoms from advanced joint disease. It is commonly performed for knee arthritis when other options no longer provide adequate relief. The “cement” is typically a medical-grade acrylic material that hardens quickly to secure the components.

PSI guides are patient-specific surgical guides made to match an individual person’s bone shape. They are most commonly used in knee surgery, especially knee replacement and some realignment procedures. They are planned using preoperative imaging (often CT or MRI) and then manufactured to fit the patient. Their goal is to help the surgeon place instruments and bone cuts in the intended position.

Patient-specific instrumentation is a set of custom-made surgical guides designed for one individual patient. It is most commonly used in knee replacement and knee realignment surgeries to help position bone cuts and implants. The guides are created from preoperative imaging, such as CT or MRI scans, combined with digital surgical planning. The goal is to match the instruments to a person’s anatomy rather than relying only on standard, “one-size” tools.

Navigation-assisted TKA is a form of total knee arthroplasty (total knee replacement) that uses a computerized guidance system during surgery. It helps the surgical team plan and verify bone cuts and implant positioning in real time. It is commonly used in operating rooms for knee arthritis and other end-stage knee joint problems. It is best understood as “standard knee replacement with added digital measurement and alignment tools.”

Computer-assisted TKA is a form of total knee arthroplasty (knee replacement) that uses digital guidance to help plan and place knee implant components. It combines standard knee replacement steps with a navigation system, sensors, or robotic assistance. It is commonly used in hospitals and surgical centers that perform joint replacement surgery.

Robotic-assisted TKA is a form of total knee arthroplasty (knee replacement) performed with computer guidance and a robotic system. It is used to help a surgeon plan bone cuts and implant positioning during knee replacement surgery. The surgeon remains in control, and the robotic technology supports precision and consistency. It is commonly used in hospitals and surgical centers that offer joint replacement care.

Complex primary TKA is a first-time total knee replacement that is more technically demanding than a routine case. It is performed when the knee has deformity, instability, bone loss, or other challenges that require additional planning and specialized implants. It is commonly used for advanced arthritis or post-traumatic knee damage when standard techniques may not provide reliable alignment or stability. Although it is “primary” (not a revision), it can use tools and implant features that overlap with revision surgery.