World Liner

K243162 · Signature Orthopaedics Pty, Ltd. · MEH · Nov 25, 2024 · Orthopedic

Device Facts

• Record ID: K243162
• Device Name: World Liner
• Applicant: Signature Orthopaedics Pty, Ltd.
• Product Code: MEH · Orthopedic
• Decision Date: Nov 25, 2024
• Decision: SESE
• Submission Type: Special
• Regulation: 21 CFR 888.3353
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

Components of the Signature Orthopaedics hip replacement range are intended to replace a hip joint where bone stock is sufficient to support the implant.

Device Story

World Liner is an acetabular hip implant component; functions as a bearing surface within an acetabular shell to articulate with a femoral head. Used in orthopedic hip replacement surgery; implanted by surgeons. Device provides a stable, wear-resistant interface for joint movement. Available in various geometric variants (neutral, hooded, lateralised, high wall, face changing, eccentric) and material options (crosslinked UHMWPE and Vitamin-E stabilized 100kGy crosslinked UHMWPE). Benefits patients by restoring hip joint function and mobility in cases of degenerative disease, trauma, or failed prior surgery.

Clinical Evidence

Bench testing only. Engineering evaluations and range of motion assessments per ISO 21535 were conducted to verify performance of new variants against predicate devices.

Technological Characteristics

Materials: Crosslinked UHMWPE (XLPE) and Vitamin-E stabilized 100kGy crosslinked UHMWPE (Vit-E HXLPE). Design: Acetabular liner variants (neutral, hooded, lateralised, high wall, face changing, eccentric). Sterilization: Sterile, SAL 10^-6. Connectivity: None. Sensing/Actuation: None (mechanical implant).

Indications for Use

Indicated for patients requiring hip joint replacement due to non-inflammatory degenerative joint disease (osteoarthritis, avascular necrosis), inflammatory joint disease (rheumatoid arthritis), functional deformity (congenital hip dysplasia), traumatic injury (traumatic arthritis, femoral head/neck fracture), or failed previous hip surgery (internal fixation, joint fusion, reconstruction, hemiarthroplasty, surface replacement, or total replacement). Intended for cementless fixation only.

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

• Signature Orthopaedics World Liner (K201278)
• Signature Orthopaedics World Liner (K241690)

Submission Summary (Full Text)

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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

November 25, 2024

Signature Orthopaedics Pty Ltd Declan Brazil Managing Director 7 Sirius Road Lane Cove West, NSW 2066 Australia

Re: K243162

Trade/Device Name: World Liner Regulation Number: 21 CFR 888.3353 Regulation Name: Hip Joint Metal/Ceramic/Polymer Semi-Constrained Cemented Or Nonporous Uncemented Prosthesis Regulatory Class: Class II Product Code: MEH, LPH Dated: October 31, 2024 Received: October 31, 2024

Dear Declan Brazil:

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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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.

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Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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); medical device reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-device-advicecomprehensive-regulatory-assistance/unique-device-identification-system-udi-system.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatory

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assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

# Limin Sun -S

Limin Sun, Ph.D. Assistant Director DHT6A: Division of Joint Arthroplasty Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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# Indications for Use

Submission Number (if known)

K243162

Device Name

World Liner

Indications for Use (Describe)

Components of the Signature Orthopaedics hip replacement range are intended to replace a hip joint where bone stock is sufficient to support the implant. When a surgeon has selected prosthetic replacement as the preferred treatment, the devices are indicated for:

· Non-inflammatory degenerative ioint disease including osteoarthritis or avascular necrosis

- · Inflammatory joint disease including rheumatoid arthritis
- · Correction of functional deformity including congenital hip dysplasia
- · Traumatic injury involving the hip joint including traumatic arthritis or femoral head or neck fracture

· Failed previous hip surgery including internal fixation or joint fusion, reconstruction, hemiarthroplasty, surface replacement, or total replacement

Signature Orthopaedics' World Cup components are intended for cementless fixation only.

Type of Use (Select one or both, as applicable)

Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use (21 CFR 801 Subpart C)

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# 510(k) SUMMARY

| Manufacturer: | Signature Orthopaedics Pty Ltd<br>7 Sirius Road<br>Lane Cove, NSW 2066<br>Australia |
|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Trade<br>Name: | World Liner |
| Common Name: | Prosthesis, Hip, Semi-Constrained, Uncemented, Metal/Polymer,<br>Non-Porous, Calcium Phosphate |
| Contact: | Dr. Declan Brazil<br>Managing Director, Signature Orthopaedics Pty Ltd |
| Prepared By: | Signature Orthopaedics Pty Ltd<br>7 Sirius Road<br>Lane Cove, NSW 2066<br>Australia<br>Phone: [phone]<br>Fax: [phone] |
| Date Prepared: | November 20th, 2024 |
| Classification: | Class II per 21 CFR 888.3353: Hip joint metal/ceramic/polymer<br>semi-constrained cemented or nonporous uncemented prosthesis<br>(MEH)<br>Class II per 21 CFR 888.3358: Hip joint metal/polymer/metal<br>semi-constrained porous-coated uncemented prosthesis (LPH) |
| Predicate Device: | Substantial equivalence to the following device is claimed,<br>• Signature Orthopaedics World Liner (K201278) - Primary<br>Predicate<br>• Signature Orthopaedics World Liner (K241690) -<br>Additional Predicate |

## Device Description:

The primary purpose of this Special 510(k) Device Modification to devices cleared as part of the World Cup System (K201278 and K241690) is to notify the FDA of additional geometrical variants of the World liner available in crosslinked UHMWPE (XLPE) and Vitamin-E Stabilized, 100kGy crosslinked UHMWPE (Vit-E HXLPE) material options.

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The World Liners are compatible with World Acetabular Cups and are available in neutral, and hooded, lateralised, high wall, face changing and eccentric variants. The liners are designed to sit within an acetabular shell and articulate with a femoral head.

# Indications for Use:

Components of the Signature Orthopaedics hip replacement range are intended to replace a hip joint where bone stock is sufficient to support the implant. When a surgeon has selected prosthetic replacement as the preferred treatment, the devices are indicated for:

- Non-inflammatory degenerative joint disease including osteoarthritis or avascular necrosis
- Inflammatory joint disease including rheumatoid arthritis
- Correction of functional deformity including congenital hip dysplasia ●
- Traumatic injury involving the hip joint including traumatic arthritis or femoral ● head or neck fracture
- . Failed previous hip surgery including internal fixation or joint fusion, reconstruction, hemiarthroplasty, surface replacement, or total replacement

Signature Orthopaedics' World Cup components are intended for cementless fixation only.

# Intended Use:

The intended use for the World Liner is identical to their previously cleared predicate devices (K201278 and K241690).

Components of the Signature Orthopaedics hip replacement range are intended to replace a hip joint where bone stock is sufficient to support the implant.

## Comparison of Technological Characteristics:

The World Hip liner described in this Special 510(k) Device Modification are similar to the primary predicate and reference devices cleared in K201278 and K241690, respectively. The technological characteristics that remain the same for the subject device systems are as follows:

- Clinical Indications for Use, Intended Use and Surgical Techniques for the Vit-E HXLPE Variants and the previously cleared UHMWPE components are identical.
- The manufacturing process of the XLPE and Vit-E HXLPE Variants in questions . have the same manufacturing processes as the previously cleared systems. This includes cleaning and passivation, packaging, transportation, and sterilization.
- The liner variants have similar geometry and fundamental design as the previously cleared predicate devices. All interconnections between components are the same.
- . All implants are provided sterile with SAL of 106 as seen in the predicate systems.

The differences between the subject and primary predicate devices are as follows:

- . Addition of lateralised, high wall, face changing and eccentric liner geometrical variants available in XLPE and Vit-E HXLPE material options.
## Performance Testing:

- Engineering evaluations were conducted to verify that the performance of World ● Hip system with additional variants are equal to and/or better than the predicate devices and therefore adequate for anticipated in-vivo use.
- . Range of Motion assessment per ISO 21535

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# Substantial Equivalence:

The results of the V&V testing, associated engineering review, risk analysis and design control activities demonstrated substantial equivalence of the subject device system to the primary predicate cited herein.