# RI.HIP MODELER — RI.HIP MODELER

> Preoperative planning software for hip implant acetabular cup placement and rotational selection. (iPhone/iPad app by Smith & Nephew.)

- Source: https://appshunter.io/ios/app/rihip-modeler/id1545374190 (this page in markdown: same URL + `.md`)
- Developer: [Smith & Nephew](https://appshunter.io/developer/549124657)
- Category: Medical
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 17+
- Requires: iOS 17 · 190 MB
- Languages: American English, Dutch, Finnish, French (France), German (Germany), Greek, Italian, Norwegian Bokmål, Polish, European Portuguese and 3 more
- Released: 2022-03-31
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rihip-modeler/id1545374190/reviews.md

## What is RI.HIP MODELER?

RI.HIP is a non-invasive standalone Total Hip Arthroplasty (THA) planning software application designed to provide preoperative planning for hip implant acetabular cup rotational selection and placement. RI.HIP allows surgeons to visualize and perform analysis of digital images for assessment of spinopelvic mobility of the patient. The app is used to characterise patient conditions, manage patient performance expectations, and help surgeons determine acetabular cup placement based on spinopelvic mobility.
RI.HIP uses imported lateral sitting/standing X-rays to determine patient specific pelvic tilt. In addition to pelvic tilt, the algorithm considers typical patient activities and implants to enable a placement that is individually suited to the patient. The application accesses a simulation database which has been generated by the LifeMOD simulation platform. Hip kinematics and distance to impingement are calculated for each activity, given a set of implant specifications.

The software provides a baseline cup orientation recommendation intended to reduce incidences of impingement based on patient condition and implant specifications. The surgeon is reminded to verify and adjust the parameters based on their clinical judgment.

RI.HIP can be used preoperatively to plan implant placement using standing and sitting X-rays. Certain physiological characteristics may not be seen on a preoperative X-ray but may be observed in the OR. The surgeon can change the plan intraoperatively upon viewing the hip joint characteristics.

## Key features

- Total Hip Arthroplasty planning
- Acetabular cup rotational selection
- Spinopelvic mobility analysis
- Patient-specific pelvic tilt determination
- Simulation database integration
- Impingement reduction recommendations


## Frequently asked questions about RI.HIP MODELER

### What is RI.HIP MODELER used for?

RI.HIP MODELER is a standalone software application designed for preoperative planning of total hip arthroplasty (THA). It focuses on acetabular cup rotational selection and placement, utilizing patient imaging and spinopelvic mobility analysis.

### How does RI.HIP MODELER determine acetabular cup placement?

The application uses imported lateral sitting/standing X-rays to determine patient-specific pelvic tilt. It also considers typical patient activities and implant specifications, accessing a simulation database to calculate hip kinematics and distance to impingement.

### Can RI.HIP MODELER be used intraoperatively?

Yes, while primarily for preoperative planning, surgeons can change the plan intraoperatively based on direct observation of hip joint characteristics in the Operating Room.

### What is the age rating for RI.HIP MODELER?

RI.HIP MODELER has an age rating of 17+, indicating it is intended for adult users and professionals.

### What devices is RI.HIP MODELER supported on?

Currently, RI.HIP MODELER is supported on iPads, making it accessible for mobile surgical planning in clinical settings.

### How often is RI.HIP MODELER updated?

The latest version, 1.3.0.8, was updated on January 6, 2026. While this indicates a recent update, the frequency of future updates is not specified.

### Does RI.HIP MODELER have ads?

No, RI.HIP MODELER does not contain advertisements. It is a free application without any ad interruptions.

### What is the user rating for RI.HIP MODELER?

RI.HIP MODELER has a perfect rating of 5.0 stars based on one review, suggesting a highly positive initial user experience.

## Version history (last 5 releases)

### 1.3.0.8 — 2026-01-06

iPadOS18 Support
Update in application Terms of Use and Information Screen

### 1.2.0.2 — 2025-01-31

Updated interface for Help Screen. 
Improved performance and bug fixes.

### 1.1.3.30 — 2023-05-03

RI.HIP Modeler is enabled for iPadOS 16 support. This build include support for ANZ region and some defect fixes to enhance user experience.

### 1.1.2.45 — 2022-10-04

This version includes bug fixes and support for English, German, Spanish, Italian, Greek, Finnish, Portuguese, Turkish, Greek, Polish, Swedish, Norwegian, Dutch languages.

### 1.1.1.41 — 2022-03-31

No release notes.

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All apps by Smith & Nephew: https://appshunter.io/developer/549124657

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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 2026-06-01.*