Ideas for AO Surgery Reference

NOE Telecanthus Discription Incorrect

2026-04-23T17:29:43Z

I may be misunderstanding the figure, but I wanted to ask for clarification. In the illustration, the normal side appears to be on the right side of the text description’s example, and the affected side on the left. If the measured label represents the horizontal distance between the medial and lateral canthus, then the normal side labeled x seems as though it should be greater than the affected side, whereas the figure labels the affected side as >x. If the intention was instead to show that the distance of the medial canthus from the facial midline is increased on the affected side, that would match the written description. However, that is not clearly what is being measured in the current figure. Thank you for taking the time to review this. I may be interpreting it incorrectly, and I would be grateful for any clarification, as I am trying to learn from it.

App available in other languages

2026-03-18T15:17:06Z

would be nice to have the app available in other languages. I would personally really appreciate the app in German

Bilateral posterior arch injuries, one externally rotated, the other internally rotated (LC III)

2026-03-30T02:12:09Z

There is a typo in this part describing Posterior internal rotation injury. It currently reads "External rotation injury will be either:" while it is describing the injury for posterior internal rotation injury.

pedicle thoraic screw

2026-04-05T07:45:56Z

your text and picture in T4- T9 pedicle srew wrong descript

Error in Kocher-Langenbeck approach to the acetabulum

2026-01-27T09:34:08Z

In section 7. Quadratus femoris elevation for additional caudal exposure I was looking for an appropriate reference to send out to trainees for teaching purposes for their reference and came across an error. The picture shows incision of quad fem from its insertion not origin which would potentially cause injury to the medial circumflex vessels - probably worth removing / editing this as it is incorrect and whilst uncommonly needed it may confuse people who are not au fait with this and cause surgical errors.

Mistake in web site fracture patella

2025-10-20T11:32:46Z

There is mistake in AO surgery reference in section of ORIF for patellar fracture (Sagittal fractures

typographical error in "intraoperative imaging of the proximal tibia"

2026-01-14T19:34:27Z

https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/proximal-tibia/further-reading/intraoperative-imaging-of-the-knee-proximal-tibia#ap-view-of-the-proximal-tibia-with-10-cephalic-tilt in the section 6. Modified lateral view to evaluate the medial plateau there is an error, it says " the contour of the concave medial plateau is seen in the joint space cranially to the convex medial plateau." I believe it should say the convex lateral plateau :-)

Typographical error in "Intraoperative Imaging of the Ankle"

2025-09-11T13:30:55Z

There is a typo noted in the text on the topic mentioned above. Anteroposterio - I believe it should be anteroposterior. Thank you.

Proximal Humerus

2025-09-10T13:55:02Z

The description of fixation using the deltoid split approach limiting the skin incision is near impossible to achieve in a young adult with good musculature. It is quite unnecessary to limit the skin incision just because the nerve ( which is very deep inside) lies within 5 cms of the acromion. Why should a skin incision injure the nerve? I would argue that the skin incision can be of any length required to reduce the fracture and comfortably place the plate without endangering the nerve. It is also unnecessarily messy to pass the sutures of the tuberosities through the plate, before applying the plate to the bone. Much better to reduce the tuberosities first, fix the plate and then pass the tuberosity sutures through the relevant holes.

wrong labelling

2025-08-07T21:28:13Z

under classification of children's fractures, 2/4 (location), last diagram it was labelled epiphysis, metaphysis, diaphysis, epiphysis, metaphysis I think it should be epiphysis, metaphysis. diaphysis, metaphysis, epiphysis

Missing links to indications CMF midface

2025-08-04T06:00:10Z

I am not able to to move past the diagnosis into indications from the website nor the app in the CMF midface module.

The proximal tibia section requires extensive revision.

2025-07-25T07:33:19Z

Column classification should be added For multifragmentary fractures it is no longer standard of care to use a single plate on the lateral side Guidance on use of appropriate incisions required. Guidance on posterior incisions required How many incisions? How many plates? Guidance required on this too

Update of WHO Surgical Safety Checklist

2025-06-23T11:35:20Z

From Isabel Van Rie: Hi Thomas, I am currently working on updating some patient positioning slides for an IMN discussion of the Basic ORP Course. I try to always check the latest information on Surgery Reference to make sure we display aligned information. While doing this, I noticed that the pictures used in SR on the Surgical Safety Checklist from WHO is outdated. At least on page WHO Surgical Safety Checklist https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/further-reading/who-surgical-safety-checklist. The most recent checklist of WHO dates from 2009 (I know it is also a long time ago, but that is what they have currently on their website on https://www.who.int/teams/integrated-health-services/patient-safety/research/safe-surgery/tool-and-resources I have gone briefly gone through the pictures on SR and noticed at least in the "Before skin incision" stage an important change. Here they work now in teams.

Terrible triad

2025-06-15T14:13:26Z

The word “prostatic” is used instead of “prosthetic” in the section on approach.

Posterior approaches to the tibia

2025-06-15T14:08:14Z

It would be helpful to include approaches to the posterolateral surface of the tibia. Also combined approach to both the posterolateral and posteromedial surface.

A Correction for Distal Clavicle Section

2025-06-03T17:28:35Z

https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/clavicle-fractures/lateral-displaced-fracture-with-cc-disrupted-extraarticular/orif-pre-contoured-distal-plate#fixation at "application in compression mode", place of the screw for compression mode should be on opposite side of the plate hole.

Needs correctionin "follow up "section in hemiarthroplasty

2025-05-22T05:46:59Z

INSTRUCTIONS GIVEN FOR FOLLOW UP IS FRACTURE FIXATION NOT FOR ATHROPLASTY

Wedge, fragmentary, proximal 1/3 fractures wrong description

2025-05-21T00:45:57Z

https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/femoral-shaft/wedge-fragmentary-proximal-1-3-fractures/definition wrong description of fx currently (describes transverse femoral shaft fx when it's supposed to be prox 1/3 femur fragmentary wedge (subtroch) fx

Excel list format of surgery reference results

2025-05-16T09:06:50Z

I am routinely making literature appraisals and reports, thus it would be very beneficial if the search results could be downloaded to a excel or word format, for further analysis of the results. Thanks

Osteoporosis fractures

2025-05-11T12:52:20Z

Consider osteoporosis fractures and the relative OF Classification

correction of segond fracture definition

2025-04-08T16:20:14Z

Please correct this paragraph: Avulsion of the lateral collateral ligament from the distal femur is known as the “Segond” fracture. https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/distal-femur/extraarticular-fracture-avulsion/definition#33a1-1-lateral-epicondyle-avulsion-fracture

Feedback

2025-03-19T07:14:53Z

My regards to the developers of this website , I am studying omfs in India and your website and the diagrams and explainations are beyond praise they are just excellent to visualise and makes life so much easier and studies fun ; so thank you so much for that . I wish u all health, and lots of success in your future endeavours, keep rocking guys !

Correction in Kocher-Langenbeck approach

2025-03-02T13:49:10Z

I think there's an incorrect description of M. gluteus maximus and iliotibial tract on the image.

Change spelling on Surgery Reference homepage

2025-01-15T06:52:59Z

Hello, dear. I have got a notice! Nowadays I'm preparing a presentation on "pertrochanteric fractures" and I was reviewing your online content when I found something could be wrong and I need your confirmation. In your online AO Trauma reference topic about "proximal femur, trochanter" section on "Pertrochanteric, multifragmentary" the first case after the paragraph about "Additional coronal fragment" you mentioned that the plain radiography and subsequent 3D CT is "a 31A2.3 fracture (with two or more intermediate fragments)" and this is wrong in my opinion But the true it is "a 31A2.2 (not 3) fracture (with one (not two or more) intermediate fragments), isn't it? Here's the Link: https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/proximal-femur/trochanteric-fracture-multifragmentary-pertrochanteric-incompetent-lateral-wall/definition

Change name on Surgery Reference homepage

2025-01-07T09:14:20Z

From: yakov Hello! I have come to notice that in your article about coronoid process fractures, you have accidentally wrote Mayo classification instead of Regan Morrey. It is found here: https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/proximal-forearm/ulna-articular-coronoid/definition?searchurl=/searchresults Maybe you would like to know! Best regards, Dr. Yakov Gelman

addition of box for uploading xray

2025-01-04T12:44:38Z

Please add xrays with some box to upload xray of patient to get accurate diagnosis, then proceed

New surgical approach for tibia nailing

2024-12-16T03:38:00Z

I would like to suggest the addition of suprapatellar nailing approach in the tibia shaft fracture section since this approach has been around for some time and more surgeons are using this approach. Thank you.

more detail in approaches and step by step operation video

2024-11-02T15:34:45Z

approaches step by step video will provides tips and tricks for juniors

Mistake in content

2024-10-07T17:59:25Z

In surgical exposure of spine, bipolar cautery image named as monopolar cautery.

Error in Compression band wiring for Olecranon fractures

2024-07-11T14:03:18Z

Surgery reference suggests to use a 1.0mm Cerclage wire at the olecranon. In our opinion this size is too small, we universally use 1.25mm wires. Can you please check, what should be the best size?

Rib Trauma SSRF

2024-06-14T12:37:25Z

Surgical approaches for stabilization of rib fractures and chest wall injury management.

Distal humerus 13-E/4.2 Multifragmentary epi-/metaphyseal, SH IV

2024-04-15T10:34:36Z

Open reduction; screw and plate fixation: Main indications No comminution (sic!); Less mature children (sic!) But at the same time the description is: Indications - More comminuted fractures - Children close to skeletal maturity - More proximal meta-diaphyseal fractures There might be a mix up with the "open reduction; screw and K-wire fixation".

Manual of implants

2024-04-04T16:42:33Z

It would be good to have a resource like the old “Manual of Internal Fixation “ which describes the use of every new implant.

Español

2024-04-03T20:24:34Z

Otro idioma

Are the transsacral/sacroiliac tunnels mislabeled on the axial imaging.

2024-01-04T14:30:22Z

Could one of the content experts please check the fluoroscopic imaging section of the "safe corridors" on the lateral imaging? I believe it is mislabeled.

Pathological fractures

2023-12-03T19:49:46Z

There is a need for guidance for pathological fractures. I also want to volunteer to work for those sections.

Realization of AO Recon

2023-11-25T19:44:18Z

Our surgical community needs the realization of AO Recon with global recognised indications about joint replacement

Surgery references AO Vet

2023-10-27T07:54:11Z

I renewed my membership but I am unable to open the SR AO Vet. After asking me to log in it still wouldn't open but asks me to "become a member".

incorrect anatomic description

2023-10-13T18:55:15Z

https://media.aofoundation.org/-/jssmedia/surgery/61/61_a03_i120.png?w=665, In this image the posterior superior iliac spine is indicated as "inferior" observe for example this web image with the correct description or denimination: https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.earthslab.com%2Fanatomy%2Filiac-spine%2F&psig=AOvVaw3UMcmHGoS9J4o_TtDK-XrY&ust=1697309277565000&source=images&cd=vfe&opi=89978449&ved=0CBEQjRxqFwoTCKiLs_bX84EDFQAAAAAdAAAAABAE

To consider approach used for osteosynthesis of tibial plateau

2023-09-25T10:20:24Z

Dear Sir/Madam In the description of management of multifragmentary prox tibia fractures AO surgery suggest to use a parapatellar approach. Was the standard anterolateral approach meant here? Best regards Anatoly Fedosov https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/proximal-tibia/complete-articular-fracture-fragmentary-articular/orif-conventional-plates#%3Ca%3E%5Bobject%20Object%5D%3C/a%3E

Intraop imaging of calc, talus, and perc pelvis/acetab screws

2023-09-12T04:23:38Z

The intraoperative imaging section (https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/further-reading/compendium-of-intraoperative-imaging) could benefit from the following sections: Scapula Calcaneus Talus Percutaneous pelvis/acetabulum screws. E.g. LC2 screw, magic screw, etc

Poller Screw

2023-09-03T10:30:03Z

It would be great if there would be a section dedicated to the poller screw as reduction tool

Stay logged in on devices

2023-05-28T17:15:10Z

It would be great if the app allowed you to stay logged in on your devices, as it’s aggravating having to re login every time I want to open and use the app.

添加简体中文翻译

2023-04-29T04:05:12Z

希望能在软件中添加多语言系统，以适应不同国家医务工作者的需要，特别希望能添加简体中文系统，这样我就可以快速学习AO理念，让我的医疗水平更上一层楼，非常感谢您的审阅，如果因此耽误您宝贵的时间，我本人对您及您的团队表示抱歉！

Description of medial approach to the distal femur is missing

2023-04-17T07:58:53Z

Dear Sir/Madam! In the chapter about the distal femur double plating the description of the medial approach is missing: https://surgeryreference.aofoundation.org/orthopedic-trauma/adult-trauma/distal-femur/complete-articular-fracture-simple-articular-multifragmentary-metaphyseal/double-plating#principles Best regards, Anatoly Fedosov Hudiksvalls hospital, Sweden

Picture mix up

2023-03-26T19:41:46Z

In the orthognathic section, the vertical maxillary hypoplasia and hyperplasia picture thumbnails are switched. The hypoplasia thumbnail is on the hyperplasia description and visa versa

type on Assessment of elbow stability page

2023-02-24T14:28:37Z

under "5. After surgery: check stability" the paragraph reads as: "...test an unrepaired medical collateral ligament..." Medical should be medial

Please include peri- implant and peri prosthetic fractures

2022-12-21T19:07:51Z

Link the Classification app with AO Surgery Reference

2022-11-21T06:53:42Z

It is sometimes difficult to find a fracture by searching with a fracture code. Maybe consider introducing links from a fracture type in the AO/OTA Classification app to the respective page in AO Surgery Reference?

correction of the elbow medial approach page

2022-11-03T06:56:18Z

Dear Sir/Madam, I suppose that the coronoid (not olecranon) was meant in the beginning of descriptions of medial approaches to the elbow (FCU split, Hotchkiss, Taylor and Scham). However, there is "olecranon" in the text. The picture follows. Best regards Anatoly Fedosov