The Cemented Hip System includes a family of Modular Straight Cemented Femoral Stems designed for use as part of Hip Arthroplasty Systems based on Cemented Femoral Fixation. The range provides multiple stem sizes and lengths to accommodate different requirements during Femoral Reconstruction.
The product family consists of two main categories: the Modular Straight Stem Cemented in standard lengths and the Cemented Modular Long Straight Stem in extended lengths reaching up to 240 mm.
The standard Modular Straight Stem lengths range from 137 to 152 mm, with sizes from 7.5 to 15. The Long Straight Stem range is available in four main lengths: 180, 200, 220, and 240 mm, with each length offered in four stem sizes: 7.5, 10.0, 12.5, and 15.0.
This variety provides the surgeon with an organized range of Stem Diameter / Size and Stem Length options, supporting Preoperative Templating and Intraoperative Implant Selection according to femoral anatomy, Femoral Canal dimensions, Bone Stock, and reconstruction requirements.
As part of a Cemented Hip System, the Femoral Stem is fixed within the femoral canal using Bone Cement in accordance with the approved Surgical Technique. The stem can also be used with compatible femoral components to complete the Femoral Construct and artificial hip joint.
All configurations carry individual AMS Product Codes, facilitating Implant Identification, Surgical Set Preparation, Procurement, Stock Control, and orthopedic implant inventory management.
What Is a Cemented Modular Straight Stem?
The Cemented Modular Straight Stem is a Femoral Implant Component inserted into the Femoral Canal to form the femoral component of an artificial hip joint.
This type of stem is based on the Cemented Fixation concept, meaning that the stem is secured within the femur using Orthopedic Bone Cement in accordance with the approved surgical technique.
The product family includes two main types:
Modular Straight Stem Cemented
A standard stem with size-related lengths ranging from 137 mm to 152 mm.
Cemented Modular Long Straight Stem
A longer stem intended for cases requiring greater stem length within the system, available in:
180 mm – 200 mm – 220 mm – 240 mm
Product Design and Components
- Proximal Stem Section
The proximal portion of the Femoral Stem, designed to connect with compatible femoral components within the Hip System.
- Modular Connection Interface
The proximal connection interface that allows the stem to be combined with compatible Modular Femoral Components according to the system design.
The exact taper type and dimensions are not specified in the supplied data. Therefore, the approved Technical Datasheet should be consulted for confirmation.
- Stem Body
The main body of the implant extending within the Femoral Canal, available in multiple sizes and lengths to accommodate variations in bone anatomy.
- Distal Stem Section
The distal portion of the stem, which becomes particularly significant in the Long Stem Configurations, where lengths extend up to 240 mm.
- Cement–Implant Interface
The external surface of the stem that functions within a Cemented Fixation System, where the implant is secured inside the femoral canal using Bone Cement.
Specific characteristics related to the Surface Finish or Cement Mantle Design are not provided in the supplied product table.
Product Application
The Cemented Modular Straight & Long Straight Femoral Stems are used within Cemented Hip Arthroplasty Systems when the surgeon determines that fixation using Bone Cement is appropriate for the surgical plan.
They may be used as part of:
- Total Hip Arthroplasty (THA)
- Hip Reconstruction within the compatible system
- Femoral Component Reconstruction
- Cases requiring a Standard Femoral Stem
- Cases requiring a Long Femoral Stem, according to the surgeon’s assessment
Selection between a Standard Stem and a Long Stem depends on factors including:
- Femoral Anatomy
- Femoral Canal Dimensions
- Bone Stock
- Required level of Femoral Reconstruction
- Preoperative Templating
- Implant Stability Requirements
- Intraoperative Assessment
Final selection of the Stem Size and Stem Length should be made by a Qualified Orthopedic Surgeon in accordance with the approved IFU and Surgical Technique.
Key Benefits
Wide Stem Length Range
The product family offers a broad range of lengths from:
137 mm up to 240 mm
providing both standard and long stem options within the same product family.
Standard & Long Stem Configurations
The availability of standard stems together with 180 / 200 / 220 / 240 mm Long Stems provides greater flexibility during Femoral Reconstruction.
Multiple Stem Sizes
The Long Stem range is available in four sizes:
7.5 – 10.0 – 12.5 – 15.0
providing the surgical team with multiple options when selecting the appropriate stem.
Cemented Fixation
The product is designed for use within a Cemented Femoral Fixation System utilizing Bone Cement.
Flexible Implant Selection
The combination of multiple length and size options provides a broad range of configurations suitable for Preoperative Planning and Intraoperative Selection.
Clear Product Coding
Each stem configuration has an individual AMS Product Code, supporting:
- Implant Identification
- Surgical Set Preparation
- Inventory Management
- Procurement
- Stock Control
Technical Specifications
- Modular Straight Stem Cemented
| Product Code | Stem Size | Total Length |
| AMS 161.075.137 | 7.5 | 137 mm |
| AMS 161.010.142 | 10 | 142 mm |
| AMS 161.125.147 | 12.5 | 147 mm |
| AMS 161.015.152 | 15 | 152 mm |
- Cemented Modular Long Straight Stem – 180 MM
| Product Code | Stem Size | Total Length |
| AMS 164.180.075 | 7.5 | 180 mm |
| AMS 164.180.010 | 10.0 | 180 mm |
| AMS 164.180.125 | 12.5 | 180 mm |
| AMS 164.180.015 | 15.0 | 180 mm |
- Cemented Modular Long Straight Stem – 200 MM
| Product Code | Stem Size | Total Length |
| AMS 166.200.075 | 7.5 | 200 mm |
| AMS 166.200.010 | 10.0 | 200 mm |
| AMS 166.200.125 | 12.5 | 200 mm |
| AMS 166.200.015 | 15.0 | 200 mm |
- Cemented Modular Long Straight Stem – 220 MM
| Product Code | Stem Size | Total Length |
| AMS 170.220.075 | 7.5 | 220 mm |
| AMS 170.220.010 | 10.0 | 220 mm |
| AMS 170.220.125 | 12.5 | 220 mm |
| AMS 170.220.015 | 15.0 | 220 mm |
- Cemented Modular Long Straight Stem – 240 MM
| Product Code | Stem Size | Total Length |
| AMS 170.240.075 | 7.5 | 240 mm |
| AMS 170.240.010 | 10.0 | 240 mm |
| AMS 170.240.125 | 12.5 | 240 mm |
| AMS 170.240.015 | 15.0 | 240 mm |
Technical Overview
System: Cemented Hip System
Product Family: Modular Straight & Long Straight Femoral Stems
Component Type: Cemented Femoral Stem
Fixation Concept: Cemented Fixation
Application: Hip Arthroplasty / Femoral Reconstruction
Stem Design: Straight Stem
Standard Stem Sizes: 7.5 / 10 / 12.5 / 15
Standard Length Range: 137–152 mm
Long Stem Sizes: 7.5 / 10.0 / 12.5 / 15.0
Long Stem Lengths: 180 / 200 / 220 / 240 mm
Overall Length Range: 137–240 mm
Total Configurations: 20
Identification: Individual AMS Product Code for each configuration
Product Features
- Part of the Cemented Hip System
- Straight Femoral Stem Geometry
- Standard and Long Stem options within the same Product Family
- Broad Overall Length Range from 137 to 240 mm
- Four Standard Stem Configurations
- Four Long Stem Sizes for each available length
- Long Stem options of 180, 200, 220, and 240 mm
- A total of 20 Stem Configurations
- Designed for Cemented Femoral Fixation
- Supports Preoperative Templating
- Provides multiple options during Intraoperative Stem Selection
- Allows selection of Stem Length according to Femoral Reconstruction requirements
- Allows selection of Stem Size according to Femoral Canal dimensions
- Modular Proximal Concept for use with compatible components
- Individual Product Code for each size and length
- Facilitates Implant Identification and Surgical Set Preparation
- Suitable for Implant Inventory, Procurement, and Stock Control management
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