(56 days)
When a mechanical alignment approach is utilized, 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.
When a kinematic alignment approach is utilized, 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.
- Moderate valgus, varus, or flexion deformities.
The kinematic alignment (KA) surgical technique may only be used with Persona CR femoral components, Persona CR or UC articular surface components, and cemented nonporous Persona tibial components without a stem extension.
Porous coated components may be used cemented (biological fixation). All other femoral, tibial baseplate, and all-polyethylene (UHMWPE and VEHXPE) patella components are indicated for cemented use only.
The Persona Personalized Knee System is a semiconstrained modular knee prosthesis designed to resurface the articulating surface of the femoral, tibial and patellar bones. With this submission, femoral components made from Titanium alloy (ASTM F136) that undergo the Ti-Nidium nitriding surface hardening treatment are being added to the system. These femoral components articulate against tibial and patellar articular surfaces to form a total knee system. This design is available in multiple sizing options to accommodate a wide range of anatomies. "Narrow" femoral components have a smaller M/L dimension than the "Standard" femoral components. This femoral component, when used with a PS articular surface component, can accommodate a maximum active flexion of 155°, and when used with a Constrained Posterior Stabilized (CPS) articular surface, can accommodate a maximum active flexion of 135°. These femoral components are provided sterile and single use.
The provided document is a 510(k) premarket notification letter and summary for the Persona® Personalized Knee System. This document does not contain information about the acceptance criteria or a study proving that a device meets acceptance criteria for an AI/ML medical device.
Instead, it pertains to a knee prosthesis, which is a physical implant, not an AI/ML device. The document details the components of the knee system, its intended use, indications for use, and a summary of non-clinical tests performed to demonstrate substantial equivalence to predicate devices. There is no mention of an algorithm, AI, machine learning, or software performance in this context.
Therefore, I cannot fulfill your request for information about acceptance criteria and study proving device meets acceptance criteria for an AI/ML device based on this input. The information provided describes a traditional medical device (knee implant) and its regulatory clearance process, which involves different types of testing (e.g., mechanical, wear, MRI compatibility) and substantial equivalence arguments, rather than the performance metrics and study designs typically associated with AI/ML device validation.
§ 888.3560 Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis.
(a)
Identification. A knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a knee joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and a tibial component or components and a retropatellar resurfacing component made of ultra-high molecular weight polyethylene. This generic type of device is limited to those prostheses intended for use with bone cement (§ 888.3027).(b)
Classification. Class II.