# AO Surgery Reference

> Online repository for surgical knowledge on fracture management. (iPhone/iPad app by AO Foundation.)

- Source: https://appshunter.io/ios/app/ao-surgery-reference/id403961165 (this page in markdown: same URL + `.md`)
- Developer: [AO Foundation](https://appshunter.io/developer/399757056)
- Category: Medical, Reference
- Price: Free
- Rating: 4.40/5 from 14 App Store ratings · 45 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 1 MB
- Languages: American English
- Released: 2010-11-19
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ao-surgery-reference/id403961165/reviews.md

## What is AO Surgery Reference?

QUICK ONLINE REFERENCE IN CLINICAL LIFE
 
Gain easy access to the award-winning AO Surgery Reference. AO Surgery Reference is an online repository for surgical knowledge. It describes the complete surgical management process from diagnosis to aftercare for all fractures of a given anatomical region, and also assembles relevant material that the AO has published before. It gives access to:
 
• aid in surgical decision making for 353 fracture types
• 172 approaches
• 1222 surgical procedures
• all richly illustrated with more than 30'000 Illustrations
 
and much more.
 
To ensure the quality of the content, it is authored, edited, and peer reviewed by experienced AO Faculty from all over the world, some of which are also well-known textbook authors/editors.

This is a relaunch of the AO Surgery Reference app utilizing the same responsive user interface that was released February 2020.

The highlights are:
• Consistent navigational logic and user experience on all screen sizes
• Inclusion of feline, canine, and equine fracture care
• Combination of Preparation – Approach – Reduction and Fixation – Aftercare into one step called treatment.
• Introduction of a powerful search function, allowing simplifications of the user interface as it replaces previous shortcuts.

## Key features

- 353 fracture types covered
- 172 surgical approaches
- 1222 surgical procedures
- Over 30,000 illustrations
- Feline, canine, and equine fracture care
- Powerful search function

## Recent user reviews (10 of 45)

All indexed reviews: https://appshunter.io/ios/app/ao-surgery-reference/id403961165/reviews.md

### 3/5 — App not working

*2026-06-28*

Great app but not working currently

### 5/5 — Please add landscape mode

*2025-02-22*

Love your app

### 4/5 — Impressive app for orthopaedic

*2023-10-16*

Good and informative

### 2/5 — Not optimised for the I pad

*2020-01-03*

Not working well,not suitable on I pad
Screen looks like using mobile

### 1/5 — The app is not opening

*2019-10-15*

I had been using the app earlier. But since past 2 months the app is not opening on iPhone X.

### 5/5 — Excellent Reference

*2019-02-09*

App is excellent for surgical approaches, both long bone and facial fractures. Recently, app had issues with new iPhone update, but these have been resolved. Very good reference, especially being free.

### 2/5 — Current app not optimized for iPad

*2019-01-27*

Kindly optimize the AOSR app for iPad ......

### 1/5 — App not working

*2019-01-22*

This is a great app when it’s working however, lately whenever I open it, nothing happens and I’m looking at a blank white screen.

### 5/5 — Aosr app not working

*2018-05-16*

I am using iphone X but since last 2 months app is not working on Vodafone cellular data but works on Bsnl wifi . 
Developers kindly sort out this

### 5/5 — Superb app for all trauma surgeons

*2017-08-08*

Beautifully designed excellent pictures

## Frequently asked questions about AO Surgery Reference

### What is AO Surgery Reference?

AO Surgery Reference is an online repository providing comprehensive surgical knowledge for managing fractures. It covers the complete process from diagnosis to aftercare for various fracture types, with detailed procedures and illustrations.

### What kind of surgical information does AO Surgery Reference offer?

It offers guidance on surgical decision-making for 353 fracture types, detailing 172 approaches and 1222 surgical procedures. The content is authored, edited, and peer-reviewed by experienced AO Faculty.

### Does AO Surgery Reference include veterinary fracture care?

Yes, AO Surgery Reference includes content for feline, canine, and equine fracture care, making it a valuable resource for both human and veterinary orthopedic surgeons.

### How is the content in AO Surgery Reference validated?

The quality of the content is ensured through authorship, editing, and peer review by experienced AO Faculty members, many of whom are also recognized textbook authors.

### What are the main highlights of the AO Surgery Reference app?

Key highlights include consistent navigation across devices, inclusion of veterinary fracture care, a unified 'treatment' step combining preparation to aftercare, and a powerful search function.

### Is AO Surgery Reference available on multiple devices?

Yes, AO Surgery Reference is supported on iPhone, iPad, and iPod, offering a consistent user experience across these Apple devices.

### How often is AO Surgery Reference updated?

The app was last updated on 2025-05-22, indicating ongoing maintenance and content refinement. The current version is 4.1.1.

### What is the age rating for AO Surgery Reference?

AO Surgery Reference has an age rating of 17+, reflecting the complex and professional nature of the surgical information it provides.

## Version history (last 5 releases)

### 4.1.1 — 2025-05-22

Bug Fixes and Improvements:
Various bug fixes to enhance stability and performance.
Adjustments for a smoother and more reliable app experience.
Thank you for your feedback — we're continuously working to improve your experience

### 4.1 — 2020-07-14

- Fixed sharing via iMessage and E-mail

### 4.0 — 2020-06-22

This is a relaunch of the AO Surgery Reference app utilizing the same responsive user interface that was released February 2020.

The highlights are:
• Consistent navigational logic and user experience on all screen sizes
• Inclusion of feline, canine, and equine fracture care
• Combination of Preparation – Approach – Reduction and Fixation – Aftercare into one step called treatment.
• Introduction of a powerful search function, allowing simplifications of the user interface as it replaces previous shortcuts.

### 3.0 — 2020-06-18

This is a relaunch of the AO Surgery Reference app utilizing the same responsive user interface that was released February 2020.

The highlights are:
• Consistent navigational logic and user experience on all screen sizes
• Inclusion of feline, canine, and equine fracture care
• Combination of Preparation – Approach – Reduction and Fixation – Aftercare into one step called treatment.
• Introduction of a powerful search function, allowing simplifications of the user interface as it replaces previous shortcuts.

### 2.0.1 — 2017-04-04

Usability improvements

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## More apps by AO Foundation

- [AO/OTA Fracture Classification](https://appshunter.io/ios/app/aoota-fracture-classification/id399757053)
- [AO Trauma Orthogeriatrics](https://appshunter.io/ios/app/ao-trauma-orthogeriatrics/id903074010)
- [AO Companion](https://appshunter.io/ios/app/ao-companion/id6657984229)
- [myAO 2.0](https://appshunter.io/ios/app/myao-20/id6749233945)

All apps by AO Foundation: https://appshunter.io/developer/399757056

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*