2.7/3.5 mm VA-LCP Anterior Clavicle

Norbert Südkamp, Martin Jaeger
Prior to this recent addition of the 2.7/3.5mm VA-LCP Anterior Clavicle plate, the LCP clavicle system has consisted primarily of implants which fixate on the superior aspect of the bone.  These implants include the superior anterior clavicle plate (which fits on the superior end laterally and twists midshaft to fit anteriorly on the medial aspect) and the superior clavicle plate with a lateral bow and flat superior design.

An anterior clavicle plate has been included in the set to

  • Decrease the potential of screw pullout, as positioning of the plate on the anterior side of the clavicle functions like a buttress and limits the pullout risk of the lateral/distal fragment [1]
  • Increase the safety of the technique as the risk of injury to the neurovascular structures is lower when drilling and screw placement is achieved from front to back, aiming away from subclavicular structures, compared to a superior to inferior direction [1]
  • Improve the fit of the plate for smaller (slimmer) patients and thereby decrease an irritation of the soft tissues [1]

The new precontoured 2.7/3.5 mm VA-LCP Anterior Clavicle plate comes in two versions: shaft/medial plates available in 6, 7, and 8 holes, and lateral extension plates available in 7, 9, 10, 11, and 12 holes. The combination holes accept 3.5 mm locking, 3.5 mm cortex, and 4.0 mm cancellous bone screws. The lateral extension plate accepts 2.7 mm variable angle and locking screws, 2.7 and 2.4 mm cortex screws. All plates have reconstruction plate segments and plate undercuts, and are available in stainless steel and titanium.

Biomechanical tests comparing plates with medial or lateral extensions on the basis of a 3.5 mm reconstruction plate have shown much higher strength in compressive bending in static and superior resistance in dynamic tests.

Reference
1 Kloen P, Sorkin AT, Rubel IF, et al (2002) Anteroinferior plating of midshaft clavicular nonunions. J Orthop Trauma; 16(6):425430

Fig 2: LCP Anterior Clavicle plate without extension

Hazards and labeling

Due to varying countries’ legal and regulatory approval requirements, consult the appropriate local product labeling for approved intended use of the products described on this website. All devices on this website are approved by the AO Technical Commission. For logistical reasons, these devices may not be available in all countries worldwide at the date of publication. 


Legal restrictions

This work was produced by AO Foundation, Switzerland. All rights reserved by AO Foundation. This publication, including all parts thereof, is legally protected by copyright.

Any use, exploitation or commercialization outside the narrow limits set forth by copyright legislation and the restrictions on use laid out below, without the publisher‘s consent, is illegal and liable to prosecution. This applies in particular to photostat reproduction, copying, scanning or duplication of any kind, translation, preparation of microfilms, electronic data processing, and storage such as making this publication available on Intranet or Internet.

Some of the products, names, instruments, treatments, logos, designs, etc referred to in this publication are also protected by patents, trademarks or by other intellectual property protection laws (eg, “AO” and the AO logo are subject to trademark applications/registrations) even though specific reference to this fact is not always made in the text. Therefore, the appearance of a name, instrument, etc without designation as proprietary is not to be construed as a representation by the publisher that it is in the public domain.

Restrictions on use: The rightful owner of an authorized copy of this work may use it for educational and research purposes only. Single images or illustrations may be copied for research or educational purposes only. The images or illustrations may not be altered in any way and need to carry the following statement of origin “Copyright by AO Foundation, Switzerland”.

Check www.aofoundation.org/disclaimer for more information.

 

If you have any comments or questions on the articles or the new devices, please do not hesitate to contact us


“approved by AO Technical Commission” and “approved by AO Foundation”
The brands and labels “approved by AO Technical Commission” and “approved by AO Foundation”, particularly "AO" and the AO logo, are AO Foundation's intellectual property and subject to trademark applications and registrations, respectively. The use of these brands and labels is regulated by licensing agreements between AO Foundation and the producers of innovation products obliged to use such labels to declare the products as AO Technical Commission or AO Foundation approved solutions. Any unauthorized or inadequate use of these trademarks may be subject to legal action.

AO ITC Innovations Magazine

Find all issues of the AO ITC Innovations Magazine for download here.

Meet the Experts

Directly learn about AO Approved Solutions from the Experts themselves.

Innovation Awards

Recognizing outstanding achievements in development and fostering excellence in surgical innovation.