# K052181: Modification to Xia Spinal System

- Pathway: 510(k) (Special)
- Applicant: Stryker Spine
- Decided: Sep 8, 2005 after 29 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: 3 generations back to K984251 (1999). 11 ancestors in all.
202 later devices descend from it; 2 cite it directly.
0 of 214 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K013823: Xia Spinal System, Howmedica Osteonics Corp. (2001) Summary page 1.
- K013688: Modification to Xia Spinal System, Howmedica Osteonics Corp. (2001) Summary page 1.
- K002505: Xia Spine System, Howmedica Osteonics Corp. (2000) Summary page 1.
- K043473: Modification to Xia Spinal System, Stryker Spine (2005) Summary page 1.

## Most influential descendants
- K070631: Device Modification to Radius Spinal System (2007), 201 descendants of its own
- K082608: Radius Spinal System, Vitallium Rod #486613601 (2008), 200 descendants of its own
- K091291: Xia 3 Spinal System, Uniplanner/Reduction Screws & Vitallium Rod (2009), 169 descendants of its own
- K120270: Venus Spinal Fixation System (2012), 111 descendants of its own
- K092631: Mantis Redux Spinal System (2009), 110 descendants of its own

## Indications for use
The Xia ® Spinal System is intended for use in the noncervical spine. When used as a pedicle screw fixation system, the Xia ®' Spinal 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® Spinal 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® Spinal 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. The 6mm diameter rods from the DIAPASON TM Spinal System and OPUS TM Spinal System are intended to be used with the other components of the Xia® Titanium Spinal System. The Titanium Multi-Axial Cross Connectors are intended to be used with the other components of the Xia® Titanium Spinal System.

Source page: https://510kreport.com/device/K052181
Methodology: https://510kreport.com/methodology