510(k) Report

FDA product code · Orthopedic

Prosthesis, Shoulder, Semi-Constrained, Metal/Polymer Cemented

KWSClass II21 CFR 888.3660510(k) required191 decisions since 1980107 recalls

191 FDA decisions since 1980. 510(k) reviews decided 2021–2025 took a median of 156 days (half between 99 and 216). 107 recalls name this code, 0 of them Class I. The most-cited predicate is K952928, named by 19 later devices.

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

FIG. A — Illustration, orthopedic panel

Twenty years of KWS at a glance: how often FDA decides these devices, how long 510(k) reviews take, how often they are recalled, and how many adverse event reports name the code.

FDA decisions per year · KWS

3in 2025

2007: 22008: 42009: 42010: 72011: 112012: 72013: 122014: 72015: 82016: 102017: 72018: 42019: 92020: 32021: 52022: 52023: 42024: 22025: 32026 (partial year): 2
2007high 12 (2013) · low 2 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · KWS

97in 2025

2008: 37 days median2009: 108 days median2010: 33 days median2011: 90 days median2012: 86 days median2013: 120 days median2014: 89 days median2015: 129 days median2016: 114 days median2017: 120 days median2018: 152 days median2019: 106 days median2020: 98 days median2021: 151 days median2022: 158 days median2023: 250 days median2025: 97 days median
2007high 250 (2023) · low 33 (2010)2026

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

Recalls per year · KWS

2in 2023

2007: 212008: 292010: 102011: 112012: 102014: 12016: 12017: 42018: 12019: 22020: 52023: 22026 (partial year): 1
2007high 29 (2008) · low 0 (2009)2026

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

Adverse event reports per year · KWS

2,281in 2025

2007: 1582008: 2382009: 2942010: 3932011: 4862012: 5422013: 8182014: 1,0662015: 1,1702016: 9702017: 1,6812018: 1,5452019: 1,7282020: 1,5672021: 1,3582022: 1,2682023: 1,7502024: 2,1222025: 2,281
2007high 2,281 (2025) · low 158 (2007)2025

MAUDE reports naming product code KWS, 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
20072—21158
200843729238
200941080294
201073310393
2011119011486
201278610542
2013121200818
201478911,066
2015812901,170
2016101141970
2017712041,681
2018415211,545
2019910621,728
202039851,567
2021515101,358
2022515801,268
2023425021,750
20242—02,122
202539702,281
20262—1—
FIG. 1 — KWS by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports, MAUDE · Data through Oct 25, 2026

Planning a device in KWS? A 510(k) Report ranks candidate predicates in this code by lineage, citations and recall history, with the review-time outlook.

See the 510(k) Report

Related product codes

Other codes under 21 CFR 888.3660.