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The Freedom® Total Knee System is indicated for the following: - Severe knee joint pain, loss of mobility, and disability due to: rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis. - Correction of functional deformities. - Post-traumatic loss of knee joint contour, particularly when there is patellofemoral erosion, dysfunction, or prior patellectomy. - Moderate valgus, varus, or flexion trauma. - Knee fractures untreatable by other methods. - Revision surgery where sufficient bone stock and soft tissue integrity are present (For PCK Components and Primary PCK Components only). The Freedom® Total Knee System – Titanium Tibial Base Plate is intended for cemented and single use only.

The Freedom® Total Knee System is comprised of a femoral component, all-poly tibial component, patellar component, tibial base plate and tibial articular surface. The Freedom® Total Knee System's Femoral Component is offered as different versions such as stemmed PCK design, primary PCK, cruciate retaining, posterior stabilizing. The Freedom® Total Knee System's Tibial Base Plate is offered with stemmed design and without stemmed design. The Freedom® Total Knee System was originally cleared under the 510(k) number K082019. Later on, several modifications were made and were cleared under 510(k)s K091280, K192148, K090411, K182574, K131481, K111785 and K200912 respectively. The primary purpose of this special 510(k) Device Modification to the Freedom® Metal Backed Tibial Component (K090411) is to notify the FDA of the change in materials used to manufacture the tibial base plate from CoCrMo to Wrought Titanium-6Aluminium-4Vanadium ELI Alloy (Ti6Al4V ELI, ASTM F136-13) as an alternative material option for the tibial base plate. The Titanium Tibial Base Plate is fabricated from Titanium alloy Ti-6Al-4V ELI, compliant with ASTM F136 and is intended for cemented application to replace the articulating surface of the proximal tibia in a measured resection technique. The Titanium Tibial Base Plates are available in 8 different sizes (1 to 8) based on Anterior/Posterior (A/P) and Medial/Lateral (M/L) dimensions.

The NextStep Arthropedix Total Knee System is indicated in knee arthroplasty for reduction or relief of pain and/or improved knee function in skeletally mature patients with severe knee pain and disability due to rheumatoid arthritis, osteoarthritis, primary and secondary traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral condyle or pseudogout, posttraumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy, moderate valgus, varus, or flexion deformities. The NextStep Arthropedix Total Knee System may also be indicated in the salvage of previously failed surgical attempts if the knee can be satisfactorily balanced and stabilized at the time of surgery. The NextStep Arthropedix Total Knee System is designed for cemented use only.

The subject device submission includes a combination of devices based on previously cleared devices (K142649 and K150783) and devices with new designs. This submission will include several identical devices reviewed in K142649 and K150783, new devices not yet reviewed by FDA, and new cleaning, packaging, and sterilization validations for all implants. The subject device submission includes 2 system options for total knee replacement: - Option 1 – Posterior Stabilized (PS), Cruciate Retaining (CR), and Ultra Congruent Cruciate Retaining (UC-CR) patellofemorotibial total knee replacement system that is based on the Progressive Orthopedic Total Knee System cleared in K142694 and K150783 - Includes additional femoral component sizes, additional vitamin E UHMWPE material option for the symmetrical tibial inserts, and manufacturing patellar components from vitamin E UHMWPE only. - Option 2 – Medial Pivot Total Knee System, including cruciate retaining (MP-CR) and cruciate substituting (MP-CS) tibiofemoral articulation

EXULT Knee Replacement System is indicated for the treatment of diseases as follows: - Painful, disabling joint disease of the knee resulting from non-inflammatory degenerative joint disease (including osteoarthritis, traumatic arthritis or avascular necrosis) or rheumatoid arthritis; - Post-traumatic loss of knee joint configuration and function; - Moderate varus, valgus, or flexion deformity in which the ligamentous structures can be returned to adequate function and stability; - Correction or revision of unsuccessful osteotomy, arthrodesis, or failure of previous arthroplasty procedure. The EXULT Knee Replacement System is intended for cemented use only.

The purpose of this submission is to introduce EXULT Tibial Insert UCR (Ultra Congruent & Cruciate Retaining) which is a line extension to the EXULT Knee Replacement System. The EXULT Tibial Insert UCR is a modification to the PCL (Posterior Cruciate Ligament) notch of the EXULT Tibial Insert UC (K242046). This change allows the EXULT Tibial Insert UC to be used by surgeons who do not resect the PCL when implanting an EXULT Tibial Insert UC. Tibial Insert is used at both right and left knee. It is only used in combination with the same Femoral component and Tibial baseplate of the predicate device.

- Rheumatoid arthritis; - Post-traumatic arthritis, osteoarthritis, or degenerative arthritis; - Posterior stabilized and constrained knee systems are also indicated for the treatment of unicompartmental replacement or total knee replacement; - Posterior stabilized knee systems are designed for use in patients in primary and revision surgery, where the anterior and posterior cruciate ligaments are incompetent and the collateral ligaments remain intact. - Constrained knee systems are designed for use in patients in primary and revision surgery, where the posterior cruciate ligament and one or both of the collateral ligaments (i.e. medial collateral and/or lateral collateral ligament) are incompetent.

The subject insert is a line addition to the LEGION Inserts with JOURNEY Lock (K200407) and has undergone design modifications to provide a new articulating surface that incorporates a flatter lateral plateau and extended medial geometry to match the asymmetry of the tibial baseplate, while maintaining the JOURNEY locking mechanism. The subject LEGION Medial Stabilized Inserts with JOURNEY Lock have a size range of 1-2, 3-4, 5-6, and 7-8mm with thicknesses of 9, 10, 11, 12, 13, 15, 18mm, and come in both left (LT) and right (RT) configurations. The LEGION Medial Stabilized XLPE Inserts with JOURNEY Lock are provided sterile via Ethylene Oxide sterilization and are intended for single use only. The subject inserts are intended to be used with compatible knee systems for total knee arthroplasty in skeletally mature patients with or without bone cement.

The Klassic® Knee System is intended for prosthetic replacement of the following: - · Patient conditions of non-inflammatory degenerative joint disease (NID); avascular necrosis and osteoarthritis - · Patient conditions of inflammatory joint disease (IJD): rheumatoid arthritis - · Patients with failed previous surgery where pain, deformity, or dysfunction persists - · Correctable varus-valgus deformity and moderate flexion contracture - · Revision of a previously failed knee arthroplasty - · Patients who require a total knee replacement The Klassic® Knee System is indicated for cemented use only, except for the Klassic Femur, with Cobalt 3D®, the Klassic Tibial Baseplate with Ti-Coat®, and the Universal™ Cones with Ti-Coat® which are also indicated for cementless use.

The Klassic® Tibial Baseplate, Revision (Ti6Al4V) is being introduced as a line extension for use with the Klassic® Knee System during total knee arthroplasty.

- Severe knee joint pain, loss of mobility, and disability due to: rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis. - Correction of functional deformities. - Post-traumatic loss of knee joint contour, particularly when there is patellofemoral erosion, dysfunction, or prior patellectomy. - Moderate valgus, varus, or flexion trauma. - Knee fractures untreatable by other methods. - Revision surgery where sufficient bone stock and soft tissue integrity are present (For PCK Components and Primary PCK Components only). The Freedom Total Knee System, Freedom Stemmed Tibial Components and Freedom PCK Components are indicated for cemented fixation

The Freedom Total Knee System All-Poly Tibial Plate implants have been developed with the desire to expand upon the already clinically successful Freedom® Total Knee System, melding together the best design features of various sub-systems into one. The implants will retain the key benefits of the All-Poly Tibial implant system while leveraging some of the modular, metal-backed systems (K090411, K182574, K243277). Using the All-Poly design, the articular surface, tibial baseplate, and stem are manufactured from a single component. This eliming from modularity, reduces the overall weight and subsidence risk, adds full radiolucency to the tibial implants, and comes at a reduced cost. Like the original All-Poly Implants, these new versions will be manufactured from GUR 1020 (Type 1) UHMWPE per ASTM F648. To enhance the existing All-Poly Implant designs, the stem of these implants is being upgraded to the larger, finned stem/keel design from the modular Freedom® Total Knee System (K090411). This will provide the new All-Poly Tibial implanted stability post-operatively and allow surgeons to use the same instruments/surgical technique as the modular, metal-backed system. This will improve the harmony between the various Freedom® systems and ensure all produce the same strong clinical results.

This device is indicated for patients with severe knee pain and disability due to: -Rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis. -Collagen disorders, and/or avascular necrosis of the femoral condyle. -Post-traumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy. -Moderate valgus, varus, or flexion deformities. -The salvage of previously failed surgical attempts or for a knee in which satisfactory stability in flexion cannot be obtained at the time of surgery. Porous components may be used cemented or uncemented (biological fixation). Augments may be attached via bone cement or screw to the tibial plates and/or femoral components. Splined stem extension components are intended to be used press-fit (uncemented). All other femoral component, tibial plate, stem extension, and femoral and tibial augment components are indicated for cemented use only.

The purpose of this submission is to add a new component to the Persona Revision Knee System, the component is the Persona Revision SoluTion Femoral Components. The addition of these components do not change the intended use or fundamental scientific technology of the device system. The Persona Revision Knee System is a semiconstrained modular knee prosthesis designed to resurface of the femoral and tibial bones. With this submission a new Ti-6Al-4V femoral component will be added to the system. These femoral components articulate against an articular surface of the tibial component, as well as, a pat of a total knee system. The new femoral components are compatible with a variety of augments, cones, and stem extent of sizes to match the needs of a patient's anatomy when performing total knee arthroplasty. These components are provided sterile and single use.