510(k) Report

510(k) · Cleared

Cleared

Depuy C-Stem Amt Hip Prosthesis

K042959510(k) SpecialCleared Dec 22, 200456-day reviewClass II21 CFR 888.3350

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

DePuy Orthopaedics, Inc. · JDI Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Cemented

Cleared on Dec 22, 2004 as substantially equivalent to K001991 (DePuy Orthopaedics, Inc., 2000) and 1 other predicate after a 56-day review. Its family tree reaches back 5 generations to 1994. 23 later devices descend from it.

Decided
Dec 22, 2004
Review
56 days
Class
Class II
Product code
JDI
Recalls
None
Predicates
2

Its longest line of descent runs back 5 generations to K935452 (1994). 25 ancestors in all, the oldest K802627 (1980). 23 later devices descend from it, 5 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1998: 2 other ancestors1997: 1 other ancestor1996: 3 other ancestors1995: 3 other ancestors1994: 3 other ancestors1988: 1 other ancestor1980: 1 other ancestor1993: 1 other ancestor1989: 1 other ancestor1985: 1 other ancestor1992: 2 other ancestors1991: 1 other ancestor2023: 3 descendants cleared2022: 3 descendants cleared2016: 3 descendants cleared2024: 2 descendants cleared2008: 1 descendant cleared2026: 2 descendants cleared2025: 5 descendants cleared2020: 1 descendant cleared2019: 1 descendant cleared2017: 1 descendant cleared2021: 1 descendant clearedK935452 · P.F.C. 2 Total Hip System Porous Coated Modular Femoral Component · Johnson & Johnson Orthopaedics, Inc. · 1994×2: 2 generations cleared close together, K945518 (1996), K961939 (1996) K974331 · Uni-Rom Total Hip System Femoral Stem · Johnson & Johnson Professionals, Inc. · 1998K001991 · Titan Porocoat Hip Prosthesis · DePuy Orthopaedics, Inc. · 200019801990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor2 generations back: 9 other ancestors3 generations back: 6 other ancestors4 generations back: 4 other ancestors 1 generation forward: 5 descendants2 generations forward: 8 descendants3 generations forward: 10 descendants K001991 · Titan Porocoat Hip Prosthesis · DePuy Orthopaedics, Inc. · 2000K974331 · Uni-Rom Total Hip System Femoral Stem · Johnson & Johnson Professionals, Inc. · 1998K961939 · S-Rom Femoral Hip Stem (Sizes 12 X 06 X 115 and 12 X 07 X 115) · Johnson & Johnson Professionals, Inc. · 1996K945518 · P.F.C. 2 Total Hip System Porous Coated Modular Femoral Component · Johnson & Johnson Professionals, Inc. · 1996K935452 · P.F.C. 2 Total Hip System Porous Coated Modular Femoral Component · Johnson & Johnson Orthopaedics, Inc. · 1994−50
  1. Root · 5 generations backK935452 P.F.C. 2 Total Hip System Porous Coated Modular Femoral ComponentJohnson & Johnson Orthopaedics, Inc. · 1994
  2. 4 generations backK945518 P.F.C. 2 Total Hip System Porous Coated Modular Femoral ComponentJohnson & Johnson Professionals, Inc. · 1996
  3. 3 generations backK961939 S-Rom Femoral Hip Stem (Sizes 12 X 06 X 115 and 12 X 07 X 115)Johnson & Johnson Professionals, Inc. · 1996
  4. 2 generations backK974331 Uni-Rom Total Hip System Femoral StemJohnson & Johnson Professionals, Inc. · 1998
  5. 1 generation backK001991 Titan Porocoat Hip ProsthesisDePuy Orthopaedics, Inc. · 2000
  6. This deviceK042959 Depuy C-Stem Amt Hip ProsthesisDePuy Orthopaedics, Inc. · 2004
  7. Descendant · cites it directly · 14 of its ownK082239 Depuy C-Stem AmtDePuy Orthopaedics, Inc. · 2008
  8. Descendant · cites it directly · 8 of its ownK220216 C-Stem AMT LE ProsthesisDepuy Ireland UC · 2022
  9. Descendant · cites it directly · 7 of its ownK152084 Bencox M Stem (Bencox Hip System) and Bencox ID Cemented Stem (with…Corentec Co., Ltd. · 2016 · Recalled
  10. Descendant · 2 generations on · 6 of its ownK162127 Bencox M Stem Lateralized & Bencox Mirabo Cup SystemCorentec Co., Ltd. · 2016 · Recalled
  11. Descendant · cites it directly · 5 of its ownK231873 DePuy SUMMIT Porocoat Hip Prosthesis – MR Conditional, DePuy SUMMIT…Depuy Ireland UC · 2024

Showing 5 of 23 descendants. See all descendants

Descendants cleared per year

2008: 12016: 32017: 12019: 12020: 12021: 12022: 32023: 32024: 22025: 52026: 2
2008high 5 (2025) · low 0 (2009)2026

Most influential descendants

Showing 5 of 23 · See all
  • K082239Depuy C-Stem AmtDePuy Orthopaedics, Inc. · 2008 · cites it directly14descendants
  • K220216C-Stem AMT LE ProsthesisDepuy Ireland UC · 2022 · cites it directly8descendants
  • K152084Bencox M Stem (Bencox Hip System) and Bencox ID Cemented Stem (with Centralizer) &…Corentec Co., Ltd. · 2016 · cites it directly7descendants
  • K162127Bencox M Stem Lateralized & Bencox Mirabo Cup SystemCorentec Co., Ltd. · 2016 · 2 generations on6descendants
  • K231873DePuy SUMMIT Porocoat Hip Prosthesis – MR Conditional, DePuy SUMMIT DuoFix Hip…Depuy Ireland UC · 2024 · cites it directly5descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K935452P.F.C. 2 Total Hip System Porous Coated Modular Femoral ComponentJohnson & Johnson Orthopaedics, Inc.1994—
−4K945518P.F.C. 2 Total Hip System Porous Coated Modular Femoral ComponentJohnson & Johnson Professionals, Inc.1996—
−3K961939S-Rom Femoral Hip Stem (Sizes 12 X 06 X 115 and 12 X 07 X 115)Johnson & Johnson Professionals, Inc.1996—
−2K974331Uni-Rom Total Hip System Femoral StemJohnson & Johnson Professionals, Inc.1998—
−1K001991Titan Porocoat Hip ProsthesisDePuy Orthopaedics, Inc.2000—
0 (this device)K042959Depuy C-Stem Amt Hip ProsthesisDePuy Orthopaedics, Inc.2004—
+1K082239Depuy C-Stem AmtDePuy Orthopaedics, Inc.2008—
+1K220216C-Stem AMT LE ProsthesisDepuy Ireland UC2022—
+1K152084Bencox M Stem (Bencox Hip System) and Bencox ID Cemented Stem (with…Corentec Co., Ltd.20161
+2K162127Bencox M Stem Lateralized & Bencox Mirabo Cup SystemCorentec Co., Ltd.20161
+1K231873DePuy SUMMIT Porocoat Hip Prosthesis – MR Conditional, DePuy SUMMIT DuoFix Hip…Depuy Ireland UC2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198010
198510
198810
198910
199110
199220
199310
199430
199530
199630
199710
199820

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200810
201630
201710
201910
202010
202110
202230
202330
202420
202550
202620
FIG. 1 — Lineage of K042959, 1994–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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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.

Planning a device in JDI? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new JDI device

  1. #1 K253515 Zimmer Biomet OSS™ Orthopedic Salvage System…score 15.2 · 12 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (2)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K001991Titan Porocoat Hip Prosthesis
Summary page 1
…87JDI or 87LZO SUBSTANTIALLY C-stem (149829 18) cleared October 12, 1998 EQUIVALENT DEVICES: Titan hip (KO001991) cleared August 31, 2000 DEVICE DESCRIPTION: The C-Stem AMT hip is a collarless, tapered, press-fit femoral stem. It is manufact…
DePuy Orthopaedics, Inc.2000—
*K982918Depuy C-Stem System
Summary page 1
…gies of the DePuy C-Stemn AMT have changed from the legally marketed predicate devices, the DePuy Titan Porocoat® Hip Prosthesis (KOO 1991) and the DePuy C- Stem System (K9829 18). They have the same material, intended use, indications, sterilization method, packaging and method of manufacture. The design,…
DePuy Orthopaedics, Inc.1998—

Also cleared against K001991: 9 other devices →

What descends from it? (23)

See all 23

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

NumberDeviceApplicantDecidedDescendants
K082239Depuy C-Stem AmtDePuy Orthopaedics, Inc.200814
K220216C-Stem AMT LE ProsthesisDepuy Ireland UC20228
K152084Bencox M Stem (Bencox Hip System) and Bencox ID Cemented Stem (with Centralizer) &…Corentec Co., Ltd.20167
K231873DePuy SUMMIT Porocoat Hip Prosthesis – MR Conditional, DePuy SUMMIT DuoFix Hip…Depuy Ireland UC20245
K223745Novae® Dual Mobility System, Hype® Hip SystemSerf20231

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 10 years and passes through 3 companies; a new generation was cleared every 1.5 years on median.
  • 4 of the 25 ancestors have a recall of any class.
  • Of its descendants, K082239 (DePuy Orthopaedics, Inc., 2008) has gone furthest, with 14 descendants of its own.
  • 9 other devices also cite its predicate K001991.

How does its category compare?

All JDI devices

JDI Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Cemented: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JDI

1in 2025

2007: 32008: 52009: 32011: 22012: 42013: 32014: 32015: 32016: 42017: 12018: 12019: 22020: 72021: 32022: 32023: 22024: 32025: 12026 (partial year): 2
2007high 7 (2020) · low 0 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JDI

59in 2024

2007: 81 days median2008: 96 days median2009: 65 days median2012: 167 days median2013: 176 days median2014: 98 days median2015: 190 days median2016: 166 days median2020: 247 days median2021: 162 days median2022: 69 days median2024: 59 days median
2007high 247 (2020) · low 59 (2024)2026

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

Recalls per year · JDI

1in 2025

2007: 262008: 62009: 32010: 32011: 52012: 42013: 112014: 32015: 12016: 52017: 52018: 12019: 12020: 772025: 1
2007high 77 (2020) · low 0 (2021)2026

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

Adverse event reports per year · JDI

1,644in 2025

2007: 6962008: 8102009: 9642010: 2,0402011: 3,1602012: 5,1222013: 5,2062014: 4,9682015: 4,9062016: 3,9952017: 6,1352018: 6,7282019: 7,4072020: 4,0152021: 3,1702022: 1,9782023: 1,6352024: 1,8212025: 1,644
2007high 7,407 (2019) · low 696 (2007)2025

MAUDE reports naming product code JDI, 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
200738126696
20085966810
20093653964
20100—32,040
20112—53,160
2012416745,122
20133176115,206
201439834,968
2015319014,906
2016416653,995
20171—56,135
20181—16,728
20192—17,407
20207247774,015
2021316203,170
202236901,978
20232—01,635
202435901,821
20251—11,644
20262—0—

What is it indicated for?

Total hip arthroplasty is intended to provide increased patient mobility and reduce pain by replacing the damaged hip joint articulation in patients where there is evidence of sufficient sound bone to seat and support the components. Total hip replacement is indicated in the following conditions: 1. A severely painful and/or disabled joint from osteoarthritis, traumatic arthritis, rheumatoid arthritis, or congenital hip dysplasia. 2. Avascular necrosis…

Read the full statement (115 words)

Total hip arthroplasty is intended to provide increased patient mobility and reduce pain by replacing the damaged hip joint articulation in patients where there is evidence of sufficient sound bone to seat and support the components. Total hip replacement is indicated in the following conditions:

1. A severely painful and/or disabled joint from osteoarthritis, traumatic arthritis, rheumatoid arthritis, or congenital hip dysplasia.

2. Avascular necrosis of the femoral head.

3. Acute traumatic fracture of the femoral head or neck.

4. Failed previous hip surgery including joint reconstruction, internal fixation, arthrodesis, hemiarthroplasty, surface replacement arthroplasty, or total hip replacement.

5. Certain cases of ankylosis.

The DePuy® C-Stem AMT Hip Stem is indicated for cemented use only.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K042959: Depuy C-Stem Amt Hip Prosthesis.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K042959

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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