CLASS II Device recall · Reported 26 Mar 2014 · FDA Enforcement Report

Natural-Knee¿ II System Ultra Cong Ins LT Sza/ Ultra Cong recalled

Zimmer is recalling Natural-Knee¿ II System Ultra Cong Ins LT Sza/ Ultra Cong Ins LT Sza/13M Ultra Cong Ins, distributed nationwide in the US. The recall was initiated on 25 Feb 2014 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesItem Number 625001609 625001613 625001619 625001709 625001711 625001713 625001719 625002613 625002616 625002719 625002722 630809510 630811410 630811510 630813410 630813510 630816210 630816410 630816510 630819010 630819110 630819210 630819310 630819410 630819510 635000009 635001009 635001011 635001111 635001116 635002009 635002011 635002109 635002111 635002113 635003009 635003011 635003013 635003016 635003109 635003113 635003116 635004009 635004011 635004016 635004111 635004113 635004119 635005013 635005019 635005111 635005116 635006109 670501916 670501919 670503819 670503911 670503916
Quantity recalled3638 units

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-1255-2014
FDA event ID
67503
Recalling firm
Zimmer, Warsaw, IN
Classification
Class II
Status
Terminated
Recall initiated
25 Feb 2014
FDA classified
20 Mar 2014
Reported
26 Mar 2014
Type
Voluntary: Firm initiated
Reason category
Sterility

Timeline

25 Feb 2014Recall initiated by company
20 Mar 2014Classified by FDA+23 days
26 Mar 2014Published in enforcement report+6 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

A complaint was received for a discolored All Poly Tibia. Root cause analysis found that the discoloration was the result of free radical oxidation. The oxidation process was advanced prematurely as a result of the machined component being stored in a transparent container exposed to artificial light for six years prior to inert packaging and sterilization of the device.

A sterility recall means a product that must be sterile, such as an injection or eye drop, may be contaminated. Using a non-sterile product can cause serious infection.

Product as listed by the FDA

Natural-Knee¿ II System ULTRA CONG INS LT SZA/9MM ULTRA CONG INS LT SZA/13M ULTRA CONG INS LT SZA/19M ULTRA CONG INS RT SZA/9MM ULTRA CONG INS RT SZA/11M ULTRA CONG INS RT SZA/13M ULTRA CONG INS RT SZA/19M ULTRA CONG INS LT SZB/13M ULTRA CONG INS LT SZB/16M ULTRA CONG INS RT SZB/19M ULTRA CONG INS RT SZB/22M NKII ROT PLTFM U/C INS, 9 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 NKII ROT PLTFM U/C INS, 1 ALL POLY CONG TIB LT SZ00 ALL POLY CONG TIB LT SZ0/ ALL POLY CONG TIB LT SZ0/ ALL POLY CONG TIB RT SZ0/ ALL POLY CONG TIB RT SZ0/ ALL POLY CONG TIB LT SZ1/ ALL POLY CONG TIB LT SZ1/ ALL POLY CONG TIB RT SZ1/ ALL POLY CONG TIB RT SZ1/ ALL POLY CONG TIB RT SZ1/ ALL POLY CONG TIB LT SZ2/ ALL POLY CONG TIB LT SZ2/ ALL POLY CONG TIB LT SZ2/ ALL POLY CONG TIB LT SZ2/ ALL POLY CONG TIB RT SZ2/ ALL POLY CONG TIB RT SZ2/ ALL POLY CONG TIB RT SZ2/ ALL POLY CONG TIB LT SZ3/ ALL POLY CONG TIB LT SZ3/ ALL POLY CONG TIB LT SZ3/ ALL POLY CONG TIB RT SZ3/ ALL POLY CONG TIB RT SZ3/ ALL POLY CONG TIB RT SZ3/ ALL POLY CONG TIB LT SZ4/ ALL POLY CONG TIB LT SZ4/ ALL POLY CONG TIB RT SZ4/ ALL POLY CONG TIB RT SZ4/ ALL POLY CONG TIB RT SZ5/ PS TIB INS RT SZ1/2 16MM PS TIB INS RT SZ1/2 19MM PS TIB INS LT SZ00/0 19MM PS TIB INS RT SZ00/0 11MM PS TIB INS RT SZ00/0 16MM

Where it was distributed

Worldwide Distribution-USA (nationwide) including DC and the states of AK, AL, AR, AZ, CA, CO, CT, FL, IL, IN, KS, LA, ME, MI, MO, MS, NC, ND, NE, NJ, NY, OH, OK, OR, PA, TN, TX, UT, VA, WA, and WI, and the countries of Canada, Australia, India, Austria, Japan, Czech Republic, Seoul Korea, France, Venezuela, Germany, Luxembourg, Spain, and Switzerland.

Nationwide AlaskaAlabamaArkansasArizonaCaliforniaColoradoConnecticutDistrict of ColumbiaFloridaIllinoisIndianaKansasLouisianaMaineMichiganMissouriMississippiNorth CarolinaNorth DakotaNebraska

Questions about this recall

Is Natural-Knee¿ II System Ultra Cong Ins LT Sza/ Ultra Cong Ins LT Sza/13M Ultra Cong Ins recalled?

Yes. Zimmer recalled Natural-Knee¿ II System Ultra Cong Ins LT Sza/ Ultra Cong Ins LT Sza/13M Ultra Cong Ins on 25 Feb 2014. The recall is Class II and its status is Terminated. Recall number Z-1255-2014.

Why was it recalled?

A complaint was received for a discolored All Poly Tibia. Root cause analysis found that the discoloration was the result of free radical oxidation. The oxidation process was advanced prematurely as a result of the machined component being stored in a transparent container exposed to artificial light for six years prior to inert packaging and sterilization of the device.

Which lots are affected?

Item Number 625001609 625001613 625001619 625001709 625001711 625001713 625001719 625002613 625002616 625002719 625002722 630809510 630811410 630811510 630813410 630813510 630816210 630816410 630816510 630819010 630819110 630819210 630819310 630819410 630819510 635000009 635001009 635001011 635001111 635001116 635002009 635002011 635002109 635002111 635002113 635003009 635003011 635003013 635003016 635003109 635003113 635003116 635004009 635004011 635004016 635004111 635004113 635004119 635005013 635005019 635005111 635005116 635006109 670501916 670501919 670503819 670503911 670503916

Where was it sold?

Worldwide Distribution-USA (nationwide) including DC and the states of AK, AL, AR, AZ, CA, CO, CT, FL, IL, IN, KS, LA, ME, MI, MO, MS, NC, ND, NE, NJ, NY, OH, OK, OR, PA, TN, TX, UT, VA, WA, and WI, and the countries of Canada, Australia, India, Austria, Japan, Czech Republic, Seoul Korea, France, Venezuela, Germany, Luxembourg, Spain, and Switzerland.

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 21 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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