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Modular rod systems of external fixation are versatile, rigid, and adjustable orthopedic devices used to stabilize fractured bones or correct deformities by connecting percutaneous pins to external carbon fiber rods. These systems allow for customized, 3D construction—using pins, clamps, and rods—to fix long bones, pelvises, and small bones, often serving as temporary stabilization in high-energy trauma.
Key Components and Features
- Components: Threaded pins (half-pins), carbon fiber or metal rods, rod-to-pin clamps, and rod-to-rod connectors.
- Modularity: Allows for custom frame assembly (e.g., delta frames, bilateral frames) tailored to the injury.
- Adjustability: Frames can be adjusted in multiple planes for distraction, compression, or alignment (e.g., flexion/extension) after initial application.
- Radiolucency: Carbon fiber rods allow for better postoperative x-ray visualization of the fracture healing.
- Stability: Increased by using thicker pins, multiple pins per segment, or adding a second rod (neutralization rod).
Common Modular Systems
- AO Foundation Modular System: Available in four sizes (Large, Medium, Small, Mini) featuring multi-pin clamps.
- Hoffmann 3 and II: Widely used systems featuring Apex pins for stabilization.
- Citieffe X-Frame: Utilizes a patented double-locking mechanism to lock rods securely.
- Orthofix Galaxy: Designed for both temporary and definitive fixation in adults and children.
- Acumed Stableloc: Primarily used for complex distal radius fractures.
Indications for Use
Advantages
To help narrow down the best systems, are you looking for:
- Large bone (tibia/femur) or small bone (hand/wrist) applications?
- Temporary bridging (for later surgery) or definitive treatment?
Please specify if you want to know more about a specific manufacturer.
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Modular external fixation - AO Surgery Reference
AO Foundation Surgery Reference
https://surgeryreference.aofoundation.org › basic-techni...
AO Foundation Surgery Reference
https://surgeryreference.aofoundation.org › basic-techni...
The modular external fixator may be used for temporary or definitive stabilization. It is rapidly applied without need for intraoperative x-rays and can be ...
Large External Fixation System | Products| DePuy Synthes
J&J MedTech
https://www.jnjmedtech.com › en-US › product › large-...
J&J MedTech
https://www.jnjmedtech.com › en-US › product › large-...
The Large External Fixation System combines the line's Modular Knee Bridge and Pelvic Frame to externally stabilize extremities and pelvic fractures.
Hoffmann® 3 Modular External Fixation
Stryker
https://www.stryker.com › resources › H_ST_20
Stryker
https://www.stryker.com › resources › H_ST_20
PDF
Hoffmann 3 External Fixation System. Delta coupling, rod-to-rod. The rod-to-rod delta couplings can snap onto Ø5, Ø8 or Ø11mm connecting rods and Ø5mm Apex pins ...Read more
48 pages
External Fixation System
Acumed
https://www.acumed.net › Products › Hand & Wrist
Acumed
https://www.acumed.net › Products › Hand & Wrist
The Acumed External Fixation System provides innovative fracture management solutions for the upper extremities through a dedicated line of external fixators.Read more
Modular external fixation system Operative technique
Citieffe
https://www.citieffe.com › uploads › 2023/11
Citieffe
https://www.citieffe.com › uploads › 2023/11
PDF
The X-frame rod-to-rod clamp provides an easy and stable connection between two or more rods and features the patented double locking system that allows the ...Read more
24 pages
Large and Medium-Size External Fixators. Modular rod ...
Kalteq
https://www.kalteq.com › uploads › 2024/07 › L...
Kalteq
https://www.kalteq.com › uploads › 2024/07 › L...
PDF
A variety of proven forms of assembly can be used to externally stabilize long, tubular bones and pelvic ring fractures as well as arthrodesis and osteotomies.Read more
44 pages
The Mechanics of External Fixation - PMC - NIH
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC2504087
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC2504087
by AT Fragomen2006Cited by 318 — In this review, various types of external fixators and their common clinical applications are described with a focus on unilateral and circular frames.Read more
Galaxy Fixation
Orthofix
https://orthofix.com › complex-fracture-management
Orthofix
https://orthofix.com › complex-fracture-management
The Galaxyâ„¢ fixation system is a modular external fixation system for fracture treatments of lower and upper limbs.
External Fixation Modular Rod System ...
Double Medical
https://www.doublemedicalgp.com › Orthopaedics
Double Medical
https://www.doublemedicalgp.com › Orthopaedics
The design of the external fixed modular rod system has different clamps for clinical selection,. Features：.Read more
Hoffmann® II External Fixation System
Akın Global Medical
https://www.akinglobal.com.tr › subdir-187-4 › 3-...
Akın Global Medical
https://www.akinglobal.com.tr › subdir-187-4 › 3-...
PDF
The basic features of this system were its modular design and the ability to reduce fractures or to make post operative corrections to the alignment of ...Read more
24 pages
People also ask
What is a modular external fixator?
The modular external fixator may be used for temporary or definitive stabilization. It is rapidly applied without need for intraoperative x-rays and can be adjusted later. The fixator consists of two partial frames (a, b), one on each main fracture fragment.
Modular external fixation - AO Surgery Reference
AO Foundation Surgery Reference
https://surgeryreference.aofoundation.org › basic-techni...
AO Foundation Surgery Reference
https://surgeryreference.aofoundation.org › basic-techni...
What are the three types of external fixators?
Comparison of the mechanical performance of three types of external fixators: linear, circular and hybrid.
Comparison of the mechanical performance of three types of ...
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
Are rods removed after a bone heals?
Once the bone has fully healed, the rod/nail no longer serves a purpose and may be removed. This is typically done a year after the original surgery and can be an outpatient procedure (i.e., the patient does not stay in the hospital overnight after surgery).
Internal Fixation: Rods and Nails
International Center for Limb Lengthening
https://www.limblength.org › treatments › internal-fixati...
International Center for Limb Lengthening
https://www.limblength.org › treatments › internal-fixati...