Devices descending from K111546
13 later devices reach U2 Hip System through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K221149 | U-Motion II Acetabular System-Extension line | United Orthopedic Corporation | 2023 | 1 | — |
| +1 | K172833 | E-XPE Acetabular Components and U-Motion II Acetabular Cup | United Orthopedic Corporation | 2018 | 2 | — |
| +1 | K162957 | U2 Femoral Head | United Orthopedic Corporation | 2017 | 1 | — |
| +1 | K163585 | Responsive Orthopedics Total Hip Arthroplasty System | Responsive Orthopedics, LLC | 2017 | 1 | — |
| +1 | K130149 | U2 Hip System, Expanded Indications for Use | United Orthopedic Corporation | 2013 | 0 | — |
| +1 | K122185 | U-Motion II Acetabular System | United Orthopedic Corp. | 2013 | 7 | — |
| +1 | K122504 | Femoral Heads, 2.5 and 7.5 MM Neck Length | United Orthopedic Corporation | 2012 | 3 | — |
| +2 | K253948 | Momentum Acetabular Cup System | United Orthopedic Corporation | 2026 | 0 | — |
| +2 | K221675 | United U2 femoral head, 22mm delta ceramic head | United Orthopedic Corporation | 2022 | 0 | — |
| +2 | K183129 | Medtronic Total Hip Arthroplasty System | Medtronic Advanced Energy | 2019 | 0 | — |
| +2 | K170089 | U-Motion II Acetabular System— Additional sizes | United Orthopedic Corporation | 2017 | 2 | — |
| +2 | K163441 | Locking Cage, Full XPE Cup | United Orthopedic Corporation | 2017 | 3 | — |
| +2 | K132455 | U-Motion II PS+ Cup | United Orthopedic Corp. | 2013 | 3 | — |