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Tibial tray

The component that replaces / resurfaces the upper tibia can be modular (more than one piece and accepts an insert, monobloc (one piece), preassembled (the insert and tibial tray are assembled by the manufacturer but can be separated) or prefixed (where the tibial tray and insert are assembled by the manufacturer and cannot be separated).

Total hip arthroplasty (acronym: THA)

Orthopaedic implant intended to replace a hip joint within the body. In contrast to a hemiarthroplasty, a total hip arthroplasty replaces the entire joint.

Total knee arthroplasty (acronym: TKA)

A knee arthroplasty replacing all three compartments of the knee joint (medial and lateral compartment of the tibiofemoral joint, and the patellofemoral compartment). Current practice in knee arthroplasty in Germany rarely includes patellar resurfacing. Strictly speaking, these cases should therefore not be classified as total knee arthroplasties, but rather as bicompartmental arthroplasties. However, the term “total knee arthroplasty” for bicompartmental knee arthroplasties is used widely in Germany.

Tribological bearing

Describes the materials of the two surfaces that move against one another in a joint replacement. Examples are: metal-on-polyethylene, metal-on-metal, ceramic-on-polyethylene, ceramic-on-ceramic. In this report, the material listed first always refers to the femoral component of the articulation.

Tumour stem

Primarily modular stem system, which can be implanted as reconstruction option in extensive bony defects after femoral tumour resection or repeated revision surgery.

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