# MorpholoKnee — Knee Phenotype Calculator

> Knee Phenotype Calculator (iPhone/iPad app by Marion Todtling.)

- Source: https://appshunter.io/ios/app/morpholoknee/id6752960967 (this page in markdown: same URL + `.md`)
- Developer: [Marion Todtling](https://appshunter.io/developer/1841958818)
- Category: Productivity, Medical
- Price: Free
- Age rating: 17+
- Requires: iOS 13.0 · 17 MB
- Languages: American English
- Released: 2025-09-29
- Data updated: 2026-07-25
- User reviews in markdown: https://appshunter.io/ios/app/morpholoknee/id6752960967/reviews.md

## What is MorpholoKnee?

MorpholoKnee – Knee Phenotype Calculator

MorpholoKnee is an innovative tool for the scientific and educational visualisation of knee alignment phenotypes.
Based on the concepts of MacDessi et al. (CPAK classification; MacDessi SJ et al. Bone Joint J. 2021;103-B(2):329–337) and Hirschmann et al. (Functional Knee Phenotypes; Hirschmann MT et al. Knee Surg Sports Traumatol Arthrosc. 2019;27(5):1394–1402), users can understand the different alignments and types of the knee joint with just a few inputs.

Functions:
• Calculation of aHKA and JLO based on LDFA & MPTA
• Automatic classification into CPAK types I–IX
• Display of associated prevalence data (healthy & OA)
• Visualisation of functional knee phenotypes
• Intuitive user interface – optimised for iPhone and iPad

Area of application:
• Scientific and didactic use
• Illustration of axes & phenotypes
• Aid for study, research and lectures

Important note:
MorpholoKnee is not a medical device.
The app is not intended for diagnosis, therapy planning or decision-making in everyday clinical practice.


## Version history (last 5 releases)

### 1.0.6+1 — 2026-01-16

Added Hirschmann phenotype categories.

### 1.0.5 — 2025-12-09

Minor improvements and bug fixes.

### 1.0.3 — 2025-10-14

Bug fixes and performance improvements

### 1.0.1 — 2025-10-08

Improved user interface and minor bug fixes.

### 1.0 — 2025-09-29

No release notes.

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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 2026-07-25.*