510(k) Report

510(k) · Cleared

Cleared

CD Horizon Spinal System

K961633510(k) TraditionalCleared Dec 5, 1996220-day reviewClass II21 CFR 888.3050

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Sofamor Danek USA,Inc. · KWP Appliance, Fixation, Spinal Interlaminal

Cleared on Dec 5, 1996 after a 220-day review. The FDA summary names no predicate by number. 1 of the 380 devices in its family, counting itself, has a Class I recall. 379 later devices descend from it.

Decided
Dec 5, 1996
Review
220 days
Class
Class II
Product code
KWP
Recalls
None
Predicates
0

379 later devices descend from it, 11 citing it directly. 1 of the 380 devices in this family, counting this one, has a Class I recall.

Descendants, by year cleared 2012: 9 descendants cleared2014: 16 descendants cleared1998: 2 descendants cleared2009: 2 descendants cleared2010: 3 descendants cleared2007: 3 descendants cleared2015: 20 descendants cleared2016: 17 descendants cleared2013: 9 descendants cleared2022: 23 descendants cleared2020: 23 descendants cleared2023: 31 descendants cleared2017: 20 descendants cleared2018: 20 descendants cleared2026: 41 descendants cleared2000: 1 descendant cleared1999: 2 descendants cleared2011: 4 descendants cleared2024: 47 descendants cleared2025: 38 descendants cleared2021: 19 descendants cleared, 1 with a Class I recall12019: 18 descendants cleared2005: 1 descendant cleared2004: 5 descendants cleared2002: 1 descendant cleared2006: 2 descendants cleared2001: 1 descendant cleared2008: 1 descendant cleared1995200020052010201520202025
  1. This deviceK961633 CD Horizon Spinal SystemSofamor Danek USA,Inc. · 1996
  2. Descendant · cites it directly · 251 of its ownK982914 Aesculap Spine System Evolution: Additional ComponentsAesculap, Inc. · 1998
  3. Descendant · cites it directly · 251 of its ownK980484 Aesculap Spine System EvolutionAesculap, Inc. · 1998
  4. Descendant · 2 generations on · 250 of its ownK990118 Isobar Spinal SystemScien'Tx USA, Inc. · 1999
  5. Descendant · 3 generations on · 131 of its ownK061162 Bar Pedicle Screw Spinal Fixation System, Model 2020Applied Spine Technologies, Inc. · 2006
  6. Descendant · 4 generations on · 130 of its ownK092624 Firebird Spinal Fixation SystemBlackstone Medical, Inc. · 2009 · Recalled

Showing 5 of 379 descendants. See all descendants

Descendants cleared per year

1998: 21999: 22000: 12001: 12002: 12004: 52005: 12006: 22007: 32008: 12009: 22010: 32011: 42012: 92013: 92014: 162015: 202016: 172017: 202018: 202019: 182020: 232021: 192022: 232023: 312024: 472025: 382026: 41
1998high 47 (2024) · low 0 (2003)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 379 · See all
  • K982914Aesculap Spine System Evolution: Additional ComponentsAesculap, Inc. · 1998 · cites it directly251descendants
  • K980484Aesculap Spine System EvolutionAesculap, Inc. · 1998 · cites it directly251descendants
  • K990118Isobar Spinal SystemScien'Tx USA, Inc. · 1999 · 2 generations on250descendants
  • K061162Bar Pedicle Screw Spinal Fixation System, Model 2020Applied Spine Technologies, Inc. · 2006 · 3 generations on131descendants
  • K092624Firebird Spinal Fixation SystemBlackstone Medical, Inc. · 2009 · 4 generations on130descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K961633CD Horizon Spinal SystemSofamor Danek USA,Inc.1996—
+1K982914Aesculap Spine System Evolution: Additional ComponentsAesculap, Inc.1998—
+1K980484Aesculap Spine System EvolutionAesculap, Inc.1998—
+2K990118Isobar Spinal SystemScien'Tx USA, Inc.1999—
+3K061162Bar Pedicle Screw Spinal Fixation System, Model 2020Applied Spine Technologies, Inc.2006—
+4K092624Firebird Spinal Fixation SystemBlackstone Medical, Inc.20091

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199820
199920
200010
200110
200210
200450
200510
200620
200730
200810
200920
201030
201140
201290
201390
2014160
2015200
2016170
2017200
2018200
2019180
2020230
2021191
2022230
2023310
2024470
2025380
2026410
FIG. 1 — Lineage of K961633, 1996–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

1 device in this family has a Class I recall. A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
Get a 510(k) Report

What was it cleared against?

The FDA summary names no predicate by number.

What descends from it? (379)

See all 379

11 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K982914Aesculap Spine System Evolution: Additional ComponentsAesculap, Inc.1998251
K980484Aesculap Spine System EvolutionAesculap, Inc.1998251
K133350Revere Stabilization SystemGlobus Medical, Inc.201493
K121764CD Horizon Spinal SystemMedtronic Sofamor Danek, Inc.201245
K140529Everest Spinal SystemK2m, LLC201431
K143569CD HORIZON Spinal SystemMedtronic Sofamor Danek USA, Inc.201515
K081978Reliance Spinal Screw SystemReliance Medical Systems, LLC20098
K101112Reliance Spinal Screw SystemReliance Medical Systems20107
K110896Reliance Spinal Screw SystemReliance Medical Systems, LLC20125
K141147Range Spinal SystemK2m, Inc.20141

Has anything in its family been recalled? (1 Class I)

No FDA recall names this device.

Relatives with a Class I recall

Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.

  • K211616ExcelsiusHubGlobus Medical, Inc. · 2021 · 3 generations on · ◆ in the 2021 descendants bar of FIG. 11 Class I recall

What does this lineage say?

  • Of its descendants, K982914 (Aesculap, Inc., 1998) has gone furthest, with 251 descendants of its own.

How does its category compare?

All KWP devices

KWP Appliance, Fixation, Spinal Interlaminal: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · KWP

9in 2015

2007: 142008: 132009: 122010: 142011: 122012: 182013: 122014: 132015: 9
2007high 18 (2012) · low 0 (2016)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · KWP

113in 2015

2007: 96 days median2008: 50 days median2009: 89 days median2010: 186 days median2011: 67 days median2012: 112 days median2013: 99 days median2014: 138 days median2015: 113 days median
2007high 186 (2010) · low 50 (2008)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · KWP

2in 2022

2007: 22008: 12009: 232010: 22011: 62012: 12013: 32015: 12016: 32018: 12019: 22022: 2
2007high 23 (2009) · low 0 (2014)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · KWP

494in 2025

2007: 2102008: 5942009: 6822010: 4742011: 7922012: 9182013: 1,0902014: 1,0222015: 1,3482016: 1,3792017: 8642018: 6572019: 5182020: 7962021: 5252022: 3352023: 3322024: 4362025: 494
2007high 1,379 (2016) · low 210 (2007)2025

MAUDE reports naming product code KWP, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
200714962210
200813501594
2009128923682
2010141862474
201112676792
2012181121918
2013129931,090
20141313801,022
2015911311,348
20160—31,379
20170—0864
20180—1657
20190—2518
20200—0796
20210—0525
20220—2335
20230—0332
20240—0436
20250—0494
20260—0—

What is it indicated for?

The CD HORIZON™ Spinal System is intended to provide temporary stabilization and to help augment the development of a solid spinal fusion. Except for situations using pedicle screws in patients, (a) having severe spondylolisthesis (Grades 3 and 4) of 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 (L3 and…

Read the full statement (373 words)

The CD HORIZON™ Spinal System is intended to provide temporary stabilization and to help augment the development of a solid spinal fusion. Except for situations using pedicle screws in patients, (a) having severe spondylolisthesis (Grades 3 and 4) of 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 (L3 and below); and (d) who are having the device removed after the development of a solid fusion mass, the specific indications for the CD HORIZON™ Spinal System are the following:

1. Degenerative disc disease (as defined by back pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies).

Pseudoarthrosis

Stenosis

Spondylolisthesis

Spinal deformities: scoliosis, kyphosis, and lordosis

Fracture

Unsuccessful previous attempts at spinal fusion

Tumor resection

The CD HORIZON™ Spinal System is intended for use only in the thoracic, lumbar, and/or sacral levels of the posterior spine. The CD HORIZON™ Spinal System is limited to non-cervical use. The CD HORIZON™ Screws, TSRH® Variable Angle Screws, LIBERTY® screws, and/or DYNA-LOK® bolts, when used as pedicle screws with the CD HORIZON™ Spinal System, are intended only for patients: (a) having severe spondylolisthesis (Grades 3 and 4) of 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 for pedicle screw fixation as described above, the screws are indicated only for insertion no higher than L3 and not lower than the sacrum. Otherwise the CD HORIZON™ screws, TSRH® Variable Angle Screws, LIBERTY® screws, and/or DYNA-LOK® bolts, when used with the CD HORIZON™ Spinal System, are intended for sacroiliac attachment only. The CCD™ Screw for Sacral Block and CCD™ Conical Fixation Screws are intended for sacroiliac attachment only. All of the CD HORIZON™ hooks are intended for thoracic and/or lumbar attachment only. GDLH™ CROSSLINK® Bars, CD HORIZON™ Low Profile CROSSLINK® plates, and TSRH® CROSSLINK® plates are intended for posterior thoracic, lumbar, and/or sacral use only.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K961633: CD Horizon Spinal System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K961633

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026