Below is an educational, technical answer to a question many patients and clinicians ask. Joint reconstruction encompasses hip and knee prostheses and arthroscopy systems, extending the portfolio beyond acute fracture care into reconstructive surgery. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Fracture Fixation and Joint Reconstruction
Internal fixation includes intramedullary nails placed within the medullary canal of long bones, as well as plates and screws applied to the bone surface, while external fixators stabilize from outside the limb. Which implant and technique are appropriate depends on the fracture type, bone quality, and patient factors, and is determined by the treating orthopedic surgeon. Locking plates have threaded holes that lock screws at a fixed angle to create angular stability, which the site FAQ notes is particularly relevant for osteoporotic bone, whereas non-locking plates rely on friction between the plate and bone.
What is the difference between a locking and a non-locking plate?
A locking plate has threaded holes that lock the screws to the plate at a fixed angle, creating angular stability that does not depend on pressing the plate against the bone. A non-locking plate relies on friction between the plate and the bone surface, which the screws generate by compressing the plate onto the bone. As the site FAQ notes, the fixed-angle stability of locking plates is particularly useful in osteoporotic bone where screw purchase may be reduced. Which plate type is appropriate is determined by the surgeon based on the fracture and bone quality.
What This Means in Practice
Nail diameter and length, plate contour, and screw configuration are selected to match the individual anatomy. Fracture location and pattern strongly influence the choice among intramedullary nailing, plating, and screw fixation. Manufacturer statements about the CytroFIX range, including the 35+ implant variants figure, reflect the company's product information rather than guaranteed clinical outcomes.
Key Considerations
- All INVAMED orthopedic implants are intended for use by trained surgeons and in accordance with the IFU and applicable regulatory approvals.
- Nail diameter and length, plate contour, and screw configuration are selected to match the individual anatomy.
- Manufacturer statements about the CytroFIX range, including the 35+ implant variants figure, reflect the company's product information rather than guaranteed clinical outcomes.
Frequently Asked Questions
What about regulatory status and availability?
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
What material are CytroFIX implants made from?
INVAMED describes CytroFIX implants as medical-grade titanium (Ti-6Al-4V ELI), selected for high strength, corrosion resistance, and biocompatibility, with an anatomical design and interlocking options.
Who decides which implant is used?
A qualified orthopedic surgeon selects the implant based on the fracture, bone quality, and patient factors; this article is educational and not a treatment recommendation.
Clinical and Technical Context
The lengthening protocol, rate, and endpoint are determined by the treating surgeon for each patient. Internal fixation includes intramedullary nails placed within the medullary canal of long bones, as well as plates and screws applied to the bone surface, while external fixators stabilize from outside the limb. INVAMED's CytroFIX Intramedullary Femoral Nail is built from Ti-6Al-4V medical-grade titanium; per invamed.com content surfaced via the search index, the intramedullary nail range covers femoral (9 to 13 mm diameter), tibial, and humeral fractures within a system of 35+ implant variants. Nail diameter and length, plate contour, and screw configuration are selected to match the individual anatomy.
Related on INVAMED
- Orthopedic & Trauma Solutions — product category
- CytroFIX Intramedullary Tibia Nail: What Clinicians and Buyers Should Know
- Inside the CytroFIX Distal Tibia Medial Plate: Design and Applications
- Do orthopedic implants need to be removed?
Important Disclaimer
This article is intended for general educational and technical information about medical device technologies. It is not medical advice, a diagnosis, or a treatment recommendation, and it does not replace consultation with a qualified healthcare professional. Any decision about diagnosis or treatment should be made by a licensed clinician based on an individual assessment. INVAMED devices are intended for use by trained healthcare professionals in accordance with the applicable Instructions for Use (IFU) and local regulatory approvals. Product availability and indications vary by country.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.