GMRS PRESS FIT STEMS WITH PUREFIX HA

K031217 · Howmedica Osteonics · LZO · May 23, 2003 · Orthopedic

Device Facts

• Record ID: K031217
• Device Name: GMRS PRESS FIT STEMS WITH PUREFIX HA
• Applicant: Howmedica Osteonics
• Product Code: LZO · Orthopedic
• Decision Date: May 23, 2003
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 888.3353
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

The Global Modular Replacement System (referred to from this point on as the GMRS) Press Fit Stems with PureFix® HA Coating are intended to be used with components of the proximal femoral segment of the Howmedica Modular Replacement System in total hip arthroplasty. These devices are intended for use in total hip arthroplasty indicated as a result of extensive proximal femoral bone loss (from trauma, failed previous arthroplasty, or tumor resection). Adequate bone stock must be present to allow the use of the GMRS Press Fit Stems with PureFix® HA Coating.

Device Story

GMRS Press Fit Stems with PureFix® HA are modular orthopedic implants used in total hip arthroplasty for proximal femoral reconstruction. Device is implanted by orthopedic surgeons in clinical settings. This specific notification introduces a weight limitation (maximum 199 lbs) for the 11mm diameter stem variant to ensure structural integrity. The device functions as a mechanical replacement for bone loss; it is not an active device. Clinical benefit is the restoration of hip joint function in patients with significant bone loss.

Clinical Evidence

No clinical data provided. This is a labeling change notification based on engineering assessment of weight limitations for the 11mm stem size.

Technological Characteristics

Modular hip prosthesis stem with PureFix® HA (hydroxyapatite) coating. Designed for press-fit, uncemented fixation. 11mm diameter variant. Metallic construction consistent with 21 CFR 888.3353 classification for semi-constrained hip prostheses.

Indications for Use

Indicated for patients requiring proximal femoral reconstruction due to trauma, failed previous prosthesis, or tumor resection. Contraindicated in patients with overt infection, rapid disease progression, or inadequate bone stock for press fit stem fixation.

Regulatory Classification

Identification

A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.

Predicate Devices

• GMRS Press Fit Stems with PureFix® HA (K022403)

Submission Summary (Full Text)

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# MAY 2 3 2003

031217
page 1 of 2

## 11mm GMRS Press Fit Stem with PureFix® HA 510(k) Premarket Notification - Labeling Change Being Effected

#### 510(k) Summary

| Submission Information | |
|-----------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Name and Address of Sponsor: | Howmedica Osteonics Corp.<br>59 Route 17<br>Allendale, NJ 07401 |
| For Information contact: | Margaret F. Crowe<br>Regulatory Affairs Consultant<br>Howmedica Osteonics Corp.<br>59 Route 17<br>Allendale, NJ 07401 |
| Device Identification | |
| Proprietary Name: | GMRS Press Fit Stems with PureFix® HA |
| Common Name: | Modular Stem |
| Classification Name and Reference | 21 CFR 888.3353<br>Hip joint metal/ceramic/polymer semi-constrained<br>cemented or nonporous uncemented prosthesis {to<br>\\13 "Classification Name and Reference} |
| Proposed Regulatory Class: | Class II |
| Device Product Code: | OR(87) LZO |

#### Intended Use

The Global Modular Replacement System (referred to from this point on as the GMRS) Press Fit Stems with PureFix® HA Coating were found substantially equivalent in premarket notification K022403. These stems are intended to be used with components of the proximal femoral segment of the Howmedica Modular Replacement System (referred to from this point on as the MRS) in total hip arthroplasty. These devices are intended for use in total hip arthroplasty indicated as a result of extensive proximal femoral bone loss (from trauma, failed previous arthroplasty, or tumor resection).

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K031217
page 20fa

Adequate bone stock must be present to allow the use of the GMRS Pre PureFix® HA Coating.

#### Indications

Proximal femoral reconstruction secondary to:

- . Trauma
- Failed previous prosthesis .
- Tumor resection .

## Contraindications

- . Overt infection
- Rapid disease progression beyond an acceptable margin .

For the use of GMRS Press Fit stems with PureFix® HA Coating, the following additional contraindication should be noted:

- Inadequate bone stock to allow the use of a press fit stem .
The purpose of this premarket notification is to add a warning to the package label for the 11mm GMRS Press Fit Stems with PureFix HA. This warning puts a weight limitation on the patient in which the stem is being implanted. The package insert advises the user to refer to the package label for additional information.

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DEPARTMENT OF HEALTH & HUMAN SERVICES

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MAY 2 3 2003

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Ms. Margaret Crowe Regulatory Affairs Consultant Howmedica Osteonics Corp. 59 Route 17 South Allendale, NJ 07401

Re: K031217 Trade/Device Name: 11mm GMRS Press Fit Stem with PureFix® HA (Labeling Change Being Effected) Regulation Number: 21 CFR 888.3353 Regulation Name: Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis Regulatory Class: II Product Code: LZO Dated: April 16, 2003 Received: April 17, 2003

Dear Ms. Crowe:

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

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#### Page 2 -- Ms. Margaret Crowe

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.

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 [phone]. 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 [phone] or [phone] or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html

Sincerely yours,

Mark N. Melkerson

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

Enclosure

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## l 1 mm GMRS Press Fit Stem with PureFix® HA 510(k) Premarket Notification - Labeling Change Being Effected

510(k) Number (if known): K O 31117

Device Name:11mm diameter GMRS Press Fit Stems with PureFix® HA

#### Intended Use

The Global Modular Replacement System (referred to from this point on as the GMRS) Press Fit Stems with PureFix® HA Coating are intended to be used with components of the proximal femoral segment of the Howmedica Modular Replacement System in total hip arthroplasty. These devices are intended for use in total hip arthroplasty indicated as a result of extensive proximal femoral bone loss (from trauma, failed previous arthroplasty, or tumor resection). Adequate bone stock must be present to allow the use of the GMRS Press Fit Stems with PureFix® HA Coating.

The 11mm diameter GMRS Press Fit Stems with PureFix® HA will bear a weight limitation on the label. The 11mm stems will be limited to use in patients with a maximum weight of 199 lbs.

(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use 801.109)

Over-the Counter-Use

ﻷﺷﺘﻤﺮﺗ

Mark N Millman

Division of General, Restorative and Neurological Devices

510(k) Number K031217