Titanium sternal fixation plate systems are used to close and stabilize the sternum after median sternotomy, the most common access route for open-heart surgery. These systems provide an alternative or complement to traditional stainless steel sternal wire closure, offering rigid, plate-based fixation intended to support stable bone healing. This article explains how sternal fixation plates are designed and where they fit into cardiac surgical closure.
Why Does the Sternum Require Specialized Fixation After Surgery?
A median sternotomy involves dividing the sternum along its midline to access the heart and great vessels. After the procedure is complete, the two sternal halves must be securely reapproximated and stabilized to allow bone healing, support respiratory mechanics, and protect the underlying mediastinal structures during recovery. Inadequate fixation can be associated with complications such as sternal instability or wound-related issues, which is why closure technique and hardware selection are clinically significant considerations.
How Are Titanium Sternal Fixation Plates Designed?
Titanium sternal fixation plate systems typically consist of low-profile plates that span the sternotomy line, secured with screws into the sternal bone on each side of the midline. Design features generally include:
- Anatomically contoured plate shapes to conform to sternal geometry
- Multiple screw hole configurations to accommodate variations in bone quality and plate positioning
- Titanium construction, valued for its strength-to-weight ratio, corrosion resistance, and biocompatibility
- Low-profile design intended to minimize palpability and interference with surrounding soft tissue
Why Is Titanium Commonly Used for Sternal Fixation Hardware?
Titanium is widely used in sternal fixation systems because it combines mechanical strength with a favorable weight profile, allowing for rigid fixation without excessive hardware bulk. Titanium is also generally compatible with postoperative imaging modalities such as CT and MRI, producing comparatively less imaging artifact than certain other metal alloys, which can be relevant if a patient requires follow-up imaging of the chest.
How Does Plate Fixation Compare to Traditional Sternal Wire Closure?
Sternal wire closure, using stainless steel wires passed around or through the sternum, has long been a standard closure technique and remains widely used. Plate-based fixation systems are generally considered in situations where a surgeon determines that additional rigid stability may be beneficial, such as in patients with risk factors for sternal complications. The choice between wire closure, plate fixation, or a combination approach is a surgical decision based on individual patient factors and surgeon preference.
What Should Surgical Teams Consider During Selection?
Selection of a sternal closure method depends on factors including bone quality, patient risk factors for wound complications, and surgeon experience with a given fixation system. As with all implanted surgical hardware, plate fixation carries inherent procedural considerations, and appropriate use is guided by the operating surgeon in accordance with the device's Instructions for Use (IFU).
Frequently Asked Questions
Are titanium sternal plates used in every open-heart surgery?
No. Many sternotomy closures continue to use traditional stainless steel wire technique. Plate-based fixation is one option among several, and its use depends on surgeon judgment and individual patient factors.
Is titanium sternal fixation hardware removed after healing?
Removal of sternal fixation hardware is not routine in most cases and depends on individual clinical circumstances. Any decision about hardware removal is made by the treating physician based on the patient's specific situation.
Does titanium hardware interfere with future imaging?
Titanium is generally associated with less imaging artifact compared to some other metals, though any implanted hardware should be disclosed to imaging staff before a CT or MRI scan so appropriate protocols can be followed.
Related INVAMED Resources
- Cardiac Surgery Instruments Products
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- Contact INVAMED for More Information
Medical Disclaimer: This article is provided for general informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendation. It is not a substitute for consultation with a qualified healthcare professional. Product indications, availability, and regulatory status vary by country. Always refer to the official Instructions for Use (IFU) and consult a licensed physician for guidance specific to your situation. INVAMED devices are intended for use by trained healthcare professionals.