K Number
K043403
Device Name
CEMEX SYSTEM GENTA FAST BONE CEMENT
Manufacturer
Date Cleared
2004-12-28

(18 days)

Product Code
Regulation Number
888.3027
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Cemex System Genta Fast Bone Cement is indicated for the fixation of prostheses to living bone in the second stage of a two-stage revision for total joint arthroplasty after the initial infection has been cleared.
Device Description
The individual chemical constituents in Cemex System Genta Fast bone cement are identical to those in the predicate Centa / Cemex System Genta bone cement (#K033596). The liquid component contains methylmethacrylate, N-N dimethyl p-toluidine, and hydroquinone. The dry powder component contains polymethylmethacrylate, barium sulphate, benzoyl peroxide and gentamicin sulphate. The only difference is that the predicate Cemex Genta / Cemex Genta System has a 2.7:1 powder-to-liquid ratio compared to the 2.4:1 ratio the new Cemex System Genta Fast product. The powder-to-liquid ratio reduction results in a quicker setting time to accommodate various application techniques. Use of Cemex System Genta Fast bone cement takes place in two consecutive stages. During the first stage, the glass ampoule containing the liquid monomer is broken to allow the component to flow into the chamber containing the powdered constituents. The device is then used as a closed manual mixing device. Mixing is accomplished by firmly striking the device against the palm of the hand and mating at each strike. In re second stage, the container is attached to an application gun device and used as a syringe while the cement is still in a semi-fluid state.
More Information

No
The device description focuses on the chemical composition and physical properties of bone cement, with no mention of AI or ML technologies. The performance studies are based on material properties and drug release, not algorithmic performance.

Yes.
The device is indicated for the fixation of prostheses to living bone, which directly treats a medical condition by providing structural support and aiding in the healing process during joint replacement surgery.

No

Explanation: The device is a bone cement used for the fixation of prostheses. Its function is to facilitate the physical attachment of a prosthesis, not to diagnose a medical condition or disease.

No

The device description clearly outlines a physical bone cement product composed of chemical constituents and used with a manual mixing device and application gun. There is no mention of software.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use is for the "fixation of prostheses to living bone in the second stage of a two-stage revision for total joint arthroplasty." This is a surgical procedure performed directly on a patient's body.
  • Device Description: The device is a bone cement, a material used to physically attach implants to bone. It is mixed and applied during surgery.
  • Lack of IVD Characteristics: There is no mention of the device being used to examine specimens derived from the human body (like blood, urine, tissue samples, etc.) to provide information for diagnosis, monitoring, or screening.

IVD devices are used in vitro (outside the body) to analyze biological samples. This device is used in vivo (inside the body) during a surgical procedure.

N/A

Intended Use / Indications for Use

Cemex System Genta Fast Bone Cement is indicated for the fixation of prostheses to living bone in the second stage of a two-stage revision for total joint arthroplasty after the initial infection has been cleared.

Product codes

LOD

Device Description

The individual chemical constituents in Cemex System Genta Fast bone cement are identical to those in the predicate Centa / Cemex System Genta bone cement (#K033596). The liquid component contains methylmethacrylate, N-N dimethyl p-toluidine, and hydroquinone. The dry powder component contains polymethylmethacrylate, barium sulphate, benzoyl peroxide and gentamicin sulphate.

The only difference is that the predicate Cemex Genta / Cemex Genta System has a 2.7:1 powder-to-liquid ratio compared to the 2.4:1 ratio the new Cemex System Genta Fast product. The powder-to-liquid ratio reduction results in a quicker setting time to accommodate various application techniques,

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

living bone

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Performance testing shows that the proposed device is equivalent to the predicate and meet the requirements of ISO 5833 and ASTM 451-99. Performance testing shows that the rate of gentamicin release is within the safety range and comparable to the predicate Cemex Genta.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

#K033596

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 888.3027 Polymethylmethacrylate (PMMA) bone cement.

(a)
Identification. Polymethylmethacrylate (PMMA) bone cement is a device intended to be implanted that is made from methylmethacrylate, polymethylmethacrylate, esters of methacrylic acid, or copolymers containing polymethylmethacrylate and polystyrene. The device is intended for use in arthroplastic procedures of the hip, knee, and other joints for the fixation of polymer or metallic prosthetic implants to living bone.(b)
Classification. Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance Document: Polymethylmethacrylate (PMMA) Bone Cement.”

0

K043403.

2320 NW 66TH COURI GAINESVILIE, FL 32653

352-377-1140 FAX 352-378-2617

Tecres Cemex® System Genta Fast bone cement Special 510(k)

DEC: 2 8 2004

Summary of Safety and Effectiveness

Trade Names:Cemex System Genta Fast bone cement
Common Name:Bone Cement
Classification Name:Polymethylmethacrylate (PMMA)
Bone Cement

:

Legally Marketed Device for Substantial Equivalence Comparison:

ModelManufacturer510(k) Number
Cemex Genta
Cemex System GentaTecres, S.p.A.#K033596

INDICATIONS FOR USE

Cemex System Genta Fast Bone Cement is indicated for the fixation of prostheses to living bone in the second stage of a two-stage revision for total joint arthroplasty after the initial infection has been cleared.

CONTRAINDICATIONS

Cemex System Genta Fast Bone Cement is contraindicated in primary orthopaedic musculoskeletal surgical procedures.

Cemex System Genta Fast Bone Cement is contraindicated in patients who are allergic or sensitive to any of its components, including Gentamicin Sulphate.

If the patient has a history of hypersensitivity or serious toxic reactions to aminoglycosides, the use of any other aminoglycosides may also be contraindicated due to the known cross-sensitivity of patients to drugs in this class.

Cemex System Genta Fast Bone Cement is contraindicated in the presence of active or incompletely treated infection, at the site where the bone cement is to be applied.

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Section 4 Page 2 of 4

1

Tecres Cemex® System Genta Fast bone cement Special 510(k)

352 377-1140 י FAX 352-378-26 ד

Summary of Safety and Effectiveness

Cemex System Genta Fast Bone Cement is contraindicated where the loss of musculature or neuromuscular compromise in the affected limb would render the surgical procedure unjustifiable.

Cemex System Genta Fast Bone Cement must be considered carefully in the presence of mvastenia gravis.

There may be increased risk of oto:oxicity from gentamicin, if other ototoxic drugs such as cisplatin (an antineoplatic agent) and vancomycin (another antibiotic) are given at the same time. There also appears to be a synergistic effect of loop diuretics, such as furosemide or ethacrynic acid, and also loud noise, when combined with gentamicin.

GENERAL DESCRIPTION - Substantial Equivalency Information

The individual chemical constituents in Cemex System Genta Fast bone cement are identical to those in the predicate Centa / Cemex System Genta bone cement (#K033596). The liquid component contains methylmethacrylate, N-N dimethyl p-toluidine, and hydroquinone. The dry powder component contains polymethylmethacrylate, barium sulphate, benzoyl peroxide and gentamicin sulphate.

The only difference is that the predicate Cemex Genta / Cemex Genta System has a 2.7:1 powder-to-liquid ratio compared to the 2.4:1 ratio the new Cemex System Genta Fast product. The powder-to-liquid ratio reduction results in a quicker setting time to accommodate various application techniques,

Performance testing shows that the proposed device is equivalent to the predicate and meet the requirements of ISO 5833 and ASTM 451-99. Performance testing shows that the rate of gentamicin release is within the safety range and comparable to the predicate Cemex Genta.

PACKAGING

Cemex System Genta Fast bone cement is packaged similarly to the predicate Cemex System Genta bone cement. The device is contained into the same double blister pack used for the predicate. The blisters are sealed with Tyvek® lids. The double blister pack is positioned inside an aluminum bag. The outer packaging is a heavy weight cardboard box.

MIXING & APPLICATION

Use of Cemex System Genta Fast bone cement takes place in two consecutive stages. During the first stage, the glass ampoule containing the liquid monomer is broken to allow the component to flow into the chamber containing the powdered constituents. The device is then

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Section 4 Page 3 of 4

2

Tecres Cemex® System Genta Fast bone cement Special 510(k)

Summary of Safety and Effectiveness

used as a closed manual mixing device. Mixing is accomplished by firmly striking the device against the palm of the hand and mating at each strike. Because no direct contact is made between the components and the use , volitile release into the local environment and possibility of contamination is minimized. In re second stage, the container is attached to an application gun device and used as a syringe while the cement is still in a semi-fluid state. The transparency of the mixing device provides for preliminary inspection of the suitability of the cement components and the visualization of he mixing and application stages as required by ISO 5833. Detailed instructions for use and pr >aution/warning information is outlined in the instruction leaflet provided with the product.

STERILITY ASSURANCE

The powdered component is steriliz. d by ethylene oxide (EO) to a Sterility Assurance Level (SAL) of 10 °. The liquid component is sterilized by a membrane filtration technique to a SAL of 10-3.

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Section 4 Page 4 of 4

3

Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract symbol resembling a stylized eagle or bird in flight, composed of three curved lines.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

DEC 2 8 2004

Ms. Lisa Simpson Sr. Regulatory Representative Exactech, Inc. 2320 NW 66th Court Gainesville, Florida 32653

Re: K043403

Trade Name: Cemex System Genta Fast Bone Cement Regulation Number: 21 CFR 888.3027 Regulation Name: Polymethylmethacrylate (PMMA) bone cement Regulatory Class: II Product Code: LOD Dated: December 16, 2004 Received: December 20, 2004

Dear Ms. Simpson:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

4

This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html

Sincerely yours,
b. Mark A. Melkman

Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

5

Tecres Cemex® System Genta Fast Bone Cement Indications for Use

510(k) Number:

K043403

Device Names:

Cemex System Genta Fast Bone Cement

INDICATIONS FOR USE

Cemex System Genta Fast Bone Cement is indicated for the fixation of prostheses to living bone in the second stage of a two-stage revision for total joint arthroplasty after the initial infection has been cleared.

CONTRAINDICATIONS

Cemex System Genta Fast Bone Cement is contraindicated in primary orthopaedic musculoskeletal surgical procedures.

Cemex System Genta Fast Bone Cement is contraindicated in patients who are allergic or sensitive to any of its components, including Gentamicin Sulphate.

If the patient has a history of hypersensitivity or serious toxic reactions to aminoglycosides, the use of any other aminoglycosides may also be contraindicated due to the known cross-sensitivity of patients to drugs in this class.

Cemex System Genta Fast Bone Cement is contraindicated in the presence of active or incompletely treated infection, at the site where the bone cement is to be applied.

Cemex System Genta Fast Bone Cement is contraindicated where the loss of musculature or neuromuscular compromise in the affected limb would render the surgical procedure unjustifiable.

Cemex System Genta Fast Bone Cement must be considered carefully in the presence of myastenia gravis.

There may be increased risk of ototoxicity from gentamicin, if other ototoxic drugs such as cisplatin (an antineoplatic agent) and vancomycin (another antibiotic) are given at the same time. There also appears to be a synergistic effect of loop diuretics, such as furosemide or ethactynic acid, and also loud noise, when combined with gentamicin.

X Over the Counter Use Prescription Use Or

Please do not write below this line - use another page if needed.

Concurrence of CDRH, Office of Device Evaluation (ODE)

(Division Sign-Off)

Division of General, Restorative,
and Neurological Devices

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510(k) Number K043403