PS and CR describe different knee implant design pathways. For procurement teams, the key task is to understand which femoral, tibial and insert combinations belong to each platform.
Understand the two configurations
PS systems use posterior-stabilized femoral and articular insert components. CR systems use cruciate-retaining components. Catalogue names should be checked against the actual component pairing rather than treated as interchangeable.
Match the complete component set
- Femoral component design and side options
- Tibial component size
- Articular insert design, size and thickness
- Patellar component option
- Instrumentation for the selected PS or CR technique
Confirm sizing logic
Ask how femoral sizes, tibial sizes and insert thicknesses correspond. Confirm whether left and right options exist and whether special sizes are available. The full configuration should be traceable to the catalogue.
Plan a focused launch range
For distributor launches, start with the common sizes and complete instrument coverage rather than ordering every component in equal quantity. Review replacement demand, tray capacity and market-specific documentation.
Document the platform clearly
The final quotation should identify PS or CR, side, size, insert thickness and related instruments. Clear naming reduces specification errors between the distributor, sales team and hospital.