← Product Code [LPH](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/LPH) · K983834

# ECHELON HIP STEM (K983834)

_Smith & Nephew, Inc. · LPH · Feb 24, 1999 · Orthopedic · SESE_

**Canonical URL:** https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/LPH/K983834

## Device Facts

- **Applicant:** Smith & Nephew, Inc.
- **Product Code:** [LPH](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/LPH.md)
- **Decision Date:** Feb 24, 1999
- **Decision:** SESE
- **Submission Type:** Abbreviated
- **Regulation:** 21 CFR 888.3358
- **Device Class:** Class 2
- **Review Panel:** Orthopedic
- **Attributes:** Therapeutic

## Intended Use

Total hip components are indicated for individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis; avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainagefree period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity. The Echelon Hip Stems are designed for single use only.

## Device Story

Echelon Hip Stems are prosthetic femoral components for total hip arthroplasty; manufactured from cobalt chrome (CoCr) via forging or casting; designed for use with modular cobalt chrome or ceramic femoral heads via 12/14 taper. Device intended for implantation by orthopedic surgeons in clinical settings to replace damaged hip joints. Provides structural support and articulation for patients failing conservative treatments. Single-use device.

## Clinical Evidence

No clinical data provided; substantial equivalence supported by bench testing and design comparison to legally marketed predicate devices.

## Technological Characteristics

Materials: Cobalt chrome (CoCr), forged or cast. Design: Modular femoral stem with 12/14 taper for use with cobalt chrome or ceramic heads. Intended for uncemented, porous-coated application. Single-use.

## Regulatory Identification

A hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis is a device intended to be implanted to replace a hip joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across the joint. This generic type of device has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy or a titanium-aluminum-vanadium (Ti-6Al-4V) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The femoral stem and acetabular shell have a porous coating made of, in the case of Co-Cr-Mo substrates, beads of the same alloy, and in the case of Ti-6Al-4V substrates, fibers of commercially pure titanium or Ti-6Al-4V alloy. The porous coating has a volume porosity between 30 and 70 percent, an average pore size between 100 and 1,000 microns, interconnecting porosity, and a porous coating thickness between 500 and 1,500 microns. The generic type of device has a design to achieve biological fixation to bone without the use of bone cement.

## Predicate Devices

- Echelon Revision Hip Stem (Smith & Nephew)
- DePuy AML® Hip Stem (DePuy)
- DePuy Replica™ Hip Stem (DePuy)

## Submission Summary (Full Text)

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2/24/99

Submitter's name: Submitter's address: Submitter's telephone number: Contact person: Date summary prepared: Trade or proprietary device name: Common or usual name:

Classification name:

K983834

#### 510(k) Summary

Smith & Nephew, Inc. 1450 Brooks Road, Memphis, TN 38116 901-399-5861 JoAnn Kuhne September 28, 1998 Echelon Hip Stems Prosthetic Hip Joint - Porous Hip Stem

21 CFR 888.3358 hip joint metal/polymer/metal semiconstrained porous coated uncemented prosthesis-Class II

21 CFR 888.3353 hip joint metal/ceramic/polymer semiconstrained porous coated uncemented prosthesis- Class II

## Substantially Equivalent Legally Marketed Devices

- Echelon Revision Hip Stem Smith & Nephew .
- . DePuy AML® Hip Stem - DePuy
- DePuy Replica™ Hip Stem DePuy .

#### Device Description

The Echelon Hip Stems are manufactured from cobalt chrome (CoCr) material, either forged or cast and are designed for use with existing cobalt chrome or ceramic modular femoral heads with a 12/14 taper.

#### Device Intended Use

Total hip components are indicated for individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis; avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainagefree period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity.

The Echelon Hip Stems are designed for single use only.

#### Technological characteristics:

The Echelon Hip Stems are similar to the legally marketed devices listed above. All of these devices are indicated for total hip replacement, are similar in design to the Echelon Hip Stems and have the same technological characteristics.

### Performance characteristics:

Data indicate that the Echelon Hip Stems are substantially equivalent to legally marketed devices.

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Image /page/1/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular, with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. In the center of the seal is an abstract image of an eagle with its wings spread. The eagle is composed of three curved lines, and it is facing to the right.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

FEB 2 4 1999

Mr. David Henley Requlatory Affairs Specialist Smith & Nephew, Inc. 1450 Brooks Road 38116 Memphis, Tennessee

K983834 Re: Echelon Hip Stems Trade Name: Requlatory Class: II Product Codes: LPH and JDI Dated: January 15, 1999 Received: January 19, 1999

Dear Mr. Henley:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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, Druq, and Cosmetic Act (Act). You may, therefore, market the device, subject to the general controls provisions The general controls provisions of the Act 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 (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Requlations, Title 21, Parts 800 to 895. ਉ substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory In addition, FDA may publish further announcements action. concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.

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This letter will allow you to begin marketing your device as described in your 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 and additionally 809.10 for in vitro diaqnostic devices), please contact the Office of Compliance at (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

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

Enclosure

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# Indications Statement Echelon Hip Stems

Total hip components are indicated for individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis; avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainage-free period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity.

prescaption use Yes

OVER the county Use M

docote

(Division Sign-Off)
Division of General Restorative Devices

510(k) Number K983834

CONFIDENTIAL

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