510(k) Report

FDA product code · Orthopedic

Prosthesis, Toe, Constrained, Polymer

KWHClass II21 CFR 888.3720510(k) required21 decisions since 19782 recalls

21 FDA decisions since 1978. 2 recalls name this code, 0 of them Class I. The most-cited predicate is K981194, named by 2 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 KWH 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 · KWH

1in 2020

2011: 12016: 12018: 12019: 12020: 1
2007high 1 (2011) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · KWH

Too few KWH 510(k)s in any year since 2007 to give a median.

Recalls per year · KWH

2in 2009

2009: 2
2007high 2 (2009) · low 0 (2007)2026

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

Adverse event reports per year · KWH

8in 2025

2007: 22008: 42009: 52010: 32011: 22012: 62013: 52014: 62015: 62016: 62017: 32018: 72019: 152020: 82021: 52022: 52023: 62024: 22025: 8
2007high 15 (2019) · low 2 (2007)2025

MAUDE reports naming product code KWH, 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
20070—02
20080—04
20090—25
20100—03
20111—02
20120—06
20130—05
20140—06
20150—06
20161—06
20170—03
20181—07
20191—015
20201—08
20210—05
20220—05
20230—06
20240—02
20250—08
20260—0—
FIG. 1 — KWH by year, 2007–2026Sources: FDA decision databases, recall and enforcement reports, MAUDE · Data through Oct 25, 2026

Planning a device in KWH? 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