Cementless Protruded Cup Insert [Polyethylene]

Cementless Protruded Cup Insert [Polyethylene]

Polyethylene Protruded Acetabular Liner | 28 mm | Cup Sizes 46–60 mm

The Cementless Protruded Cup Insert [Polyethylene] is a Protruded Acetabular Liner made of Polyethylene, designed for use within a Cementless Acetabular Cup as part of Total Hip Arthroplasty systems. It features a Protruded Rim Design and is available for cup sizes ranging from 46 to 60 mm, with all listed configurations associated with a 28 mm size according to the product data.

• Protruded Liner Design with an elevated rim providing a specific geometry within the Acetabular Construct.
• Available for 8 Cup Sizes ranging from 46 to 60 mm, with a specified internal size of 28 mm according to the product data.
• Made of Polyethylene for use as a Bearing Insert within a Cementless Acetabular Cup System.
• A Dedicated AMS Product Code is assigned to each size to facilitate Implant Identification, ordering, and inventory management.

The Cementless Protruded Cup Insert [Polyethylene] is a component of the Acetabular System used in Total Hip Arthroplasty (THA) procedures. It functions as a Polyethylene Acetabular Liner installed inside the compatible Cementless Acetabular Cup, forming the bearing surface that articulates with the Femoral Head.

The product features a Protruded Liner Design, in which the liner geometry includes a raised or extended portion beyond the conventional rim. This type of design is used within Hip Arthroplasty Systems when the surgeon determines the need for an Elevated / Protruded Rim Configuration based on the anatomical condition, cup orientation, preoperative planning, and Intraoperative Assessment.

According to the product table, the Protruded Cup Inserts are available in 8 Cup Sizes, ranging from 46 mm to 60 mm in 2 mm increments, and all are specified for use with a 28 mm size. Each configuration has a separate AMS Product Code, facilitating accurate implant identification during Implant Set preparation, inventory management, and procurement.

The Polyethylene Insert functions as part of the Acetabular Bearing Couple within the system, while final selection of the Cup Size and Liner Configuration depends on Preoperative Templating, clinical evaluation, and the approved Surgical Technique of the system being used.

What Is a Cementless Protruded Cup Insert?

The Cementless Protruded Cup Insert is a Polyethylene Acetabular Liner / Insert designed to be installed inside a compatible Cementless Acetabular Shell or Cup as part of a hip replacement system.

After the Acetabular Cup is fixed within the Acetabulum, the liner is inserted into the cup to function as one of the articulating surfaces of the artificial joint.

The internal surface of the liner articulates with the compatible Femoral Head, together forming the Articulation / Bearing Surface of the prosthetic hip joint.

This particular model is characterized by a Protruded Rim, meaning that a portion of the liner rim extends further than the standard liner geometry.

Product Components and Design

1. Polyethylene Liner Body

The main body of the insert, manufactured from Polyethylene according to the product data, forming the Bearing Surface within the Acetabular Component.

2. Internal Articulating Surface

The concave internal surface designed to accommodate the compatible Femoral Head.

According to the supplied size table, all configurations are listed with:

28 mm

3. Protruded / Elevated Rim

The elevated portion of the liner rim that distinguishes this product from a Standard Cup Insert.

4. Cup Interface

The external surface of the liner designed to fit inside the compatible Cementless Acetabular Cup of the specified size.

5. Engagement / Locking Features

The insert design includes geometric features intended to secure it within the cup. However, the exact type and mechanism of the Locking Mechanism are not specified in the provided table. The approved system Technical Documentation should therefore be consulted for confirmation.

Product Application

The Cementless Protruded Cup Insert [Polyethylene] is used as a component on the acetabular side of Total Hip Replacement / Total Hip Arthroplasty systems.

It is used within the general Acetabular Reconstruction sequence as follows:

1. The Acetabulum is prepared according to the approved Surgical Technique.
2. The appropriate Cementless Acetabular Cup is selected and implanted.
3. The compatible Protruded Polyethylene Liner is selected according to the cup size.
4. The liner is installed inside the Acetabular Shell.
5. The liner articulates with the compatible Femoral Head to form the Hip Bearing Couple.

The use of a Protruded Liner Configuration depends on the surgeon’s assessment of component positioning, Soft-Tissue Balance, Hip Stability, and the anatomical requirements of the individual case.

Key Benefits

Protruded Rim Geometry

The Protruded Rim Design provides an additional option compared with a Standard Liner, allowing a different geometry to be selected according to the requirements of the Acetabular Reconstruction.

Multiple Cup Sizes

The range is available in 8 Cup Sizes, accommodating a variety of Acetabular Cup Dimensions.

28 mm Configuration

All sizes listed in the product table are specified with a 28 mm Configuration, providing a clearly defined option when selecting components of the Bearing System.

Polyethylene Bearing Insert

The Polyethylene Liner functions as one of the articulating surfaces within the Artificial Hip Articulation.

Implant Selection Flexibility

The availability of multiple cup sizes combined with the Protruded Configuration provides additional options during Preoperative Planning and Intraoperative Implant Selection.

Clear Implant Identification

Each configuration has an individual AMS Product Code, facilitating:

• Implant Identification
• Inventory Management
• Surgical Set Preparation
• Procurement
• Stock Control

Technical Specifications

Product Code	Description	Cup Size	Associated Size
AMS 130.028.046	Protruded Liner Cup for Size 46 × 28	46 mm	28 mm
AMS 130.028.048	Protruded Liner Cup for Size 48 × 28	48 mm	28 mm
AMS 130.028.050	Protruded Liner Cup for Size 50 × 28	50 mm	28 mm
AMS 130.028.052	Protruded Liner Cup for Size 52 × 28	52 mm	28 mm
AMS 130.028.054	Protruded Liner Cup for Size 54 × 28	54 mm	28 mm
AMS 130.028.056	Protruded Liner Cup for Size 56 × 28	56 mm	28 mm
AMS 130.028.058	Protruded Liner Cup for Size 58 × 28	58 mm	28 mm
AMS 130.028.060	Protruded Liner Cup for Size 60 × 28	60 mm	28 mm

Technical Overview

Product Name: Cementless Protruded Cup Insert
Component Type: Acetabular Liner / Cup Insert
Material: Polyethylene
Design: Protruded Liner
Application: Cementless Acetabular System
Cup Size Range: 46–60 mm
Size Increment: 2 mm
Associated Internal Size: 28 mm
Number of Available Configurations: 8
Product Identification: Individual AMS Code for each size

Product Features

• Protruded Acetabular Liner Geometry
• Made of Polyethylene according to the product data
• Designed for use within a compatible Cementless Acetabular Cup System
• Available in 8 Configurations
• Cup Size Range: 46–60 mm
• Consistent 2 mm increments between available cup sizes
• All listed sizes are associated with a 28 mm Configuration
• Provides a Protruded / Elevated Rim option within the acetabular liner range
• Designed to function as part of the Hip Bearing Couple
• Individual Product Code for each size
• Facilitates implant selection and Surgical Set preparation
• Supports clear classification within Inventory Management Systems and the Product Catalogue
• Supports a variety of Implant Configurations within the compatible Hip Arthroplasty System