ZIMMER PATIENT SPECIFIC INSTRUMENTS SYSTEM, ZIMMER PATIENT SPECIFIC INSTRUMENTS, ZIMMER PATIENT SPECIFIC INSTRUMENTS PLA
Device Facts
| Record ID | K133162 |
|---|---|
| Device Name | ZIMMER PATIENT SPECIFIC INSTRUMENTS SYSTEM, ZIMMER PATIENT SPECIFIC INSTRUMENTS, ZIMMER PATIENT SPECIFIC INSTRUMENTS PLA |
| Applicant | Materialise NV |
| Product Code | JWH · Orthopedic |
| Decision Date | Feb 25, 2014 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 888.3560 |
| Device Class | Class 2 |
Indications for Use
Total Knee Replacement The Zimmer® Patient Specific Instruments System is intended to be used as a surgical instrument to assist in the positioning of Total Knee Replacement components intra-operatively and in guiding the marking of bone before cutting provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. The Zimmer Patient Specific Instruments System is to be used with Zimmer NexGen CR-Flex fixed bearing, Zimmer NexGen CR fixed bearing, Zimmer NexGen LPS-Flex fixed bearing, Zimmer NexGen LPS fixed bearing, Zimmer Gender Solutions Natural – Knee Flex fixed bearing, Zimmer Persona™ CR fixed bearing, Zimmer Persona™ PS fixed bearing and Zimmer Persona™ Trabecular Metal™ prostheses families only. Unicompartmental Knee Replacement The Zimmer® Patient Specific Instruments System is intended to be used as a surgical instrument to assist in the positioning of Unicompartmental Knee Replacement components intra-operatively and in guiding the marking of bone before cutting and to guide cutting of the bone provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. The Zimmer Patient Specific Instruments System is to be used with Zimmer Unicompartmental High Flex Knee System prostheses families only. The Zimmer® Patient Specific Instruments are intended for single use only.
Device Story
System consists of Zimmer Patient Specific Instruments Planner (software) and Zimmer Patient Specific Instruments (hardware). Inputs: MRI image data sets. Process: Surgeon uses software to inspect, fine-tune, and approve pre-surgical plan; patient-specific templates are then manufactured. Output: Patient-specific templates used intra-operatively by surgeons to guide bone marking/cutting and position knee replacement components. Benefit: Assists in accurate positioning and alignment of total/unicompartmental knee replacement components. Used in clinical settings by surgeons.
Clinical Evidence
Bench testing only. Non-clinical tests using saw bones were performed to assess safety and effectiveness. Software verification and validation testing demonstrated performance substantially equivalent to the predicate device.
Technological Characteristics
System comprises software (Planner) and patient-specific hardware templates. Connectivity: Not specified. Sterilization: Single-use. Materials: Not specified. Software: Patient-specific planning and template design.
Indications for Use
Indicated for patients undergoing total or unicompartmental knee replacement surgery where anatomic landmarks for implant alignment are identifiable on patient imaging scans. Contraindicated if necessary anatomic landmarks are not identifiable.
Regulatory Classification
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).
Predicate Devices
- Zimmer® Patient Specific Instruments System 5.0 (K121640)
Reference Devices
- Zimmer® Personalized Knee System Trabecular Metal™ components (K122745)
- Zimmer® Personalized Knee System Trabecular Metal™ components (K121771)