Universal Locking Trochanter Stabilization Plate

The Universal Locking Trochanter Stabilization Plate is intended to treat stable and unstable intertrochanteric, subtrochanteric, pertrochanteric, and basilar neck fractures when used in conjunction with the Dynamic Hip Screw (DHS) or the LCP Dynamic Helical Hip System (DHHS) side plates with 4 or more holes.

Using the plate limits the possibility of varus deformation of the proximal fragment, with cut out of the screws and medialization of the distal femoral fragment, without impairing function and dynamization capacity of the DHS.

The Universal Locking Trochanter Stabilization Plate limits diaphyseal medialization by fastening onto the greater trochanter relief. The additional proximal internal fixation can be achieved by using 3.5 mm locking head screws. Cerclage is still possible.

With the introduction of the DHHS and the combination holes, the existing Locking Trochanter Stabilization Plate designed for use with the DHS only, had to be adapted.

The changes of the Universal Locking Trochanter Stabilization Plate are:

  • In the proximal hole of the plate shaft the size of the slot/cut out was enlarged to allow for placement of the DHHS compression screw, which is bigger than the DHS compression screw.
  • The second most distal hole was enlarged to accommodate screw placement in both DHS and DHHS.
  • The most distal hole was changed to a double hole for affixing the plate to the bone through both the DHS and DHHS, which enlarges the plate.

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.