# K123550: Utf Stem, Reduced

- Pathway: 510(k) (Traditional)
- Applicant: United Orthopedic Corporation
- Decided: May 1, 2013 after 163 days
- Product code: LPH (Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3358
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to P960047 (1997). 27 ancestors in all.
4 later devices descend from it; 3 cite it directly.
0 of 32 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K110245: United Utf Stem, United Orthopedic Corporation (2011) Summary page 3.

## Most influential descendants
- K132207: Utf Stem-Reduced, Additional Sizes (2013), 3 descendants of its own
- K163193: UTF Stem, reduced, #0, #00 (2017), 2 descendants of its own
- K172251: UTS Stem (2017), 1 descendant of its own
- K242315: Resolve Modular Revision Hip Stem (2025), 0 descendants of its own

## Indications for use
This device is indicated for use in total hip replacement or bipolar hip replacement undergoing primary and revision surgery for the following conditions: non-inflammatory degenerative joint disease such as osteoarthritis, avascular necrosis, ankylosis, protrusion acetabuli, and painful hip dysplasia; inflammatory degenerative joint disease such as rheumatoid arthritis; correction of functional deformity; treatment of non-union, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement, unmanageable using other techniques; revision procedures where other treatments or devices have failed. This device is designed for cementless use.

Source page: https://510kreport.com/device/K123550
Methodology: https://510kreport.com/methodology