# K201023: iTotal® Identity Posterior Stabilized Knee Replacement System

- Pathway: 510(k) (Traditional)
- Applicant: Conformis, Inc.
- Decided: Jun 16, 2020 after 57 days
- Product code: JWH (Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer)
- Device class: 2
- Regulation: 21 CFR 888.3560
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 17 generations back to K810258 (1981). 176 ancestors in all.
14 later devices descend from it; 4 cite it directly.
0 of 191 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K161668: ConforMIS iTotal (R) Posterior Stabilized (PS) Knee Replacement System (iTotal PS), Conformis, Inc. (2016) Summary page 4.
- K193105: iUni Unicondylar Knee Replacement System, iDuo Bicompartmental Knee Repair System, iTotal CR Knee Replacement System, iTotal PS Knee Replacement System, Conformis, Inc. (2020) Summary page 4.
- K190562: iTotal Identity Cruciate Retaining Knee Replacement System, Conformis, Inc. (2019) Summary page 4.
- K952830: Darwin Knee System (TC3), Johnson & Johnson Professionals, Inc. (1996) Summary page 4.
- K060515: Depuy PFC Sigma Knee Prosthesis, DePuy Orthopaedics, Inc. (2006) Summary page 4.

## Most influential descendants
- K203447: iTotal Identity Cruciate Retaining (CR) Total Knee Replacement, iTotal Identity Posterior Stabilizing (PS) Total Knee Replacement (2020), 12 descendants of its own
- K210191: Identity Imprint Knee Replacement System (2021), 10 descendants of its own
- K212411: Identity Imprint Knee Replacement System (including Identity Imprint Posterior Stabilized (PS) KRS and Identity Imprint Cruciate Retaining (CR) KRS) (2021), 9 descendants of its own
- K213389: Identity Imprint Cruciate Retaining (CR) Knee Replacement System and Identity Imprint Posterior Stabilized (PS) Knee Replacement System (2021), 8 descendants of its own
- K221059: Identity Imprint Knee Replacement System (including Identity Imprint Posterior Stabilized (PS) KRS and Identity Imprint Cruciate Retaining (CR) KRS) (2022), 7 descendants of its own

## Indications for use
The iTotal Identity Posterior Stabilized Knee Replacement System is intended for use as a total knee replacement in patients with knee joint pain and disability whose conditions cannot be solely addressed by the use of a prosthetic device that treats only one or two of the three knee compartments, such as a unicondylar, patellofemoral or bicompartmental prosthesis. The Indications for Use include: • Painful joint disease due to osteoarthritis, traumatic arthritis, rheumatoid arthritis, polyarthritis or osteonecrosis of the knee. • Post traumatic loss of joint function. • Moderate varus, valgus or flexion deformity. • Failed osteotomies, hemiarthroplasties, and unicondylar, patellofemoral or bicompartmental implants. • Revision procedures provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. This implant is intended for cemented use only.

Source page: https://510kreport.com/device/K201023
Methodology: https://510kreport.com/methodology