# K120148: Aos Solid Locking Lag Screw, Aos Telescoping Lag Screw

- Pathway: 510(k) (Traditional)
- Applicant: Advanced Orthopaedic Solutions, Inc.
- Decided: Oct 2, 2012 after 258 days
- Product code: HSB (Rod, Fixation, Intramedullary And Accessories)
- Device class: 2
- Regulation: 21 CFR 888.3020
- 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 K970097 (1997). 16 ancestors in all.
6 later devices descend from it; 2 cite it directly.
0 of 23 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K021008: Advanced Orthopaedic Solutions Trochanteric Nail, Advanced Orthopaedic Solutions, Inc. (2002) Summary page 1.
- K103533: ES Trochanteric Nail, Left and Right, 10MM, Advanced Orthopaedic Solutions, Inc. (2011) Summary page 1.
- K050118: Ebi Trochanteric Nail System, Ebi, L.P. (2005) Summary page 1.

## Most influential descendants
- K202099: AOS Galileo™ Trochanteric Nail System (2020), 4 descendants of its own
- K133081: Trochanteric Nails and ES Trochanteric Nails, Humeral Naisl, Tibial Nails, Antegrade Femoral Nails, Retrograde Femoral N (2013), 2 descendants of its own
- K230257: Arthrex Intramedullary Nails (2023), 1 descendant of its own
- K252025: Active Intramedullary (AIM) Tibial Nail System (2026), 0 descendants of its own
- K252826: ARIX Femur Nail System (2025), 0 descendants of its own

## Indications for use
The AOS Trochanteric Nail is intended to treat stable and unstable proximal fractures of the femur including pertrochanteric, intertrochanteric and high subtrochanteric fractures and combinations of these fractures. The long trochanteric nail is additionally indicated for subtrochanteric fractures, pertrochanteric fractures associated with shaft fractures, pathologic fractures (including prophylactic use) in osteoporotic bone of the trochanteric and diaphyseal areas, long subtrochanteric fracture, ipsilateral femoral fractures, proximal and distal non-unions and malunions and revisions procedures.

Source page: https://510kreport.com/device/K120148
Methodology: https://510kreport.com/methodology