# K091577: Extremity Medical Midfoot Screw System, Charcx, Intramedullary Screw System

- Pathway: 510(k) (Traditional)
- Applicant: Extremity Medical, LLC
- Decided: Jul 24, 2009 after 52 days
- Product code: HWC (Screw, Fixation, Bone)
- Device class: 2
- Regulation: 21 CFR 888.3040
- 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 K962823 (1996). 15 ancestors in all.
4 later devices descend from it; 2 cite it directly.
0 of 20 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K082934: Extremity Medical Midfoot Screw System, Extremity Medical, LLC (2009) Summary page 1.
- K050683: Synthes (Usa) 3.5MM Conical Screws, Synthes (Usa) (2005) Summary page 1.

## Most influential descendants
- K093770: Extremity Medical Screw System (2010), 3 descendants of its own
- K121417: XMCP, Hallux, Tarsx, Extremity Medical Screw System (2012), 2 descendants of its own
- K200124: InCore MPJ System (2020), 0 descendants of its own
- K130120: Extremity Medical IP Fusion System (2013), 0 descendants of its own

## Indications for use
The Extremity Medical Midfoot Screw System is intended for fixation arthrodesis of the metatarsal-cuneiform, navicular-cuneiform, metatarsal-cuboid, talonavicular, calcaneocuboid, and metatarsal-phalangeal joints.

Source page: https://510kreport.com/device/K091577
Methodology: https://510kreport.com/methodology