# K051973: Modification to:  Xia Stainless Steel System

- Pathway: 510(k) (Special)
- Applicant: Stryker Spine
- Decided: Aug 18, 2005 after 28 days
- Product code: KWP (Appliance, Fixation, Spinal Interlaminal)
- Device class: 2
- Regulation: 21 CFR 888.3050
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K012870 (2001). 2 ancestors in all.
No later device cites it as a predicate yet.
0 of 3 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K012870: Xia Stainless Steel System, Howmedica Osteonics Corp. (2001) Summary page 2.
- K031090: Modification to Xia Stainless Steel System, Howmedica Osteonics Corp. (2003) Summary page 2.

## Indications for use
The Xia Stainless Steel System is intended for use in the noncervical spine. When used as a pedicle screw fixation system, the Xia Stainless Steel System is intended for patients: (a) having severe spondylolisthesis (Grades 3 and 4) at the fifth lumbar - first sacral (L5-S1) vertebral joint; (b) who are receiving fusions using autogenous bone graft only; (c) who are having the device fixed or attached to the lumbar and sacral spine; and (d) who are having the device removed after the development of a solid fusion mass. When used as a pedicle screw fixation system, the Xia Stainless Steel System is also intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis). When used as an anterior screw fixation system or a posterior hook and sacral/iliac screw fixation system, the Xia Stainless Steel System is indicated for patients with degenerative disc disease which is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies, spondylolisthesis, fracture, spinal stenosis, spinal deformities such as scoliosis, kyphosis, lordosis, tumor, pseudoarthrosis or revision of failed fusion attempts.

Source page: https://510kreport.com/device/K051973
Methodology: https://510kreport.com/methodology