# K223441: SpaceFlex Acetabular Cup

- Pathway: 510(k) (Traditional)
- Applicant: G21, S.R.L.
- Decided: Mar 23, 2023 after 129 days
- Product code: KWY (Prosthesis, Hip, Hemi-, Femoral, Metal/Polymer, Cemented Or Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3390
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 8 generations back to K936159 (1995). 22 ancestors in all.
No later device cites it as a predicate yet.
0 of 23 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K191981: REMEDY Acetabular Cup, Osteoremedies, LLC (2019) Summary page 5.

## Indications for use
The SpaceFlex Acetabular Cup consists of disposable cement spacer molds indicated for use to mold a temporary Acetabular cup replacement for skeletally mature patients undergoing a two-stage procedure due to a septic process. The temporary prosthesis is molded using low viscosity antibiotic polymethylmethacrylate bone cement (G3A 40 bone cement) and positioned into the acetabular cavity following removal of the existing acetabular and femoral components and radical debridement. The molded acetabular cup is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection). The molded temporary Acetabular cup prosthesis is indicated for an implantation period of 180 days or less. Because of inherent mechanical limitations of the device material (Bone Cement), the molded temporary prosthesis is only indicated for patients who will consistently use traditional mobility assist devices (e.g., crutches, walkers) throughout the implant period.

Source page: https://510kreport.com/device/K223441
Methodology: https://510kreport.com/methodology