# K253948: Momentum Acetabular Cup System

- Pathway: 510(k) (Traditional)
- Applicant: United Orthopedic Corporation
- Decided: Sep 2, 2026 after 266 days
- Product code: LZO (Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous, Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3353
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 14 generations back to K810258 (1981). 346 ancestors in all.
No later device cites it as a predicate yet.
0 of 346 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K170359: Trinity™ Dual Mobility System, Corin U.S.A. Limited (2017) Summary page 5.
- K150522: G7 Dual Mobility System, Biomet, Inc. (2015) Summary page 5.
- K190656: Dual Mobility - Longevity and Vivacit-E Polyethylene Hip Bearings, Zimmer, Inc. (2019) Summary page 5.
- K190660: G7 Acetabular System Longevity Highly Crosslinked Polyethylene, G7 Acetabular System Vivacit-E Vitamin E Highly Crosslinked Polyethylene, Zimmer, Inc. (2019) Summary page 5.
- K140669: G7 Osseoti Acetublar Shells, Biomet, Inc. (2014) Summary page 5.
- K121874: G7 Acetabular System, Biomet Manufacturing Corp (2012) Summary page 5.
- K130128: Trinity Acetabular System, Corin Medical (2013) Summary page 5.
- K050262: U2 Acetabular Component, United Orthopedic Corp. (2005) Summary page 5.
- K983382: Osteonics HA Generation II Acetabular Component System, Osteonics Corp. (1998) Summary page 5.
- K221149: U-Motion II Acetabular System-Extension line, United Orthopedic Corporation (2023) Summary page 5.
- K221636: EMPHASYS Acetabular System, Depuy Ireland UC (2022) Summary page 5.
- K220959: OR3O Dual Mobility System, Smith & Nephew, Inc. (2022) Summary page 5.

## Indications for use
The Momentum Acetabular Cup System is intended for use in total hip arthroplasty in skeletally mature patients for the following conditions: 1. Non-inflammatory degenerative joint disease, including osteoarthritis and avascular necrosis. 2. Rheumatoid arthritis. 3. Correction of functional deformity. 4, Treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques. 5. Revision of previously failed total hip arthroplasty. 6. Dislocation risks. The Momentum Acetabular Cup System implants are single use implants intended for cementless use only.

Source page: https://510kreport.com/device/K253948
Methodology: https://510kreport.com/methodology