Client

Orthopy Health GmbH

Designing a Shoulder Rehabilitation Experience for a Digital App Supporting  Orthopedic Recovery

UX Design

UI Design

Healthcare

Prototyping

For Katharina Engl UX Design

June - August 2023

01 / 04

The opportunity

Orthopy is a DiGA, a certified digital health application (Medizinprodukt Klasse I) prescribed by doctors and reimbursed by health insurance providers in Germany. Until this project, Orthopy supported patients with knee injuries only. The opportunity was significant: extending the app to a second patient group, shoulder injuries, which meant designing for a fundamentally different anatomy, different surgical pathways, and a different set of movement restrictions.

The challenge concentrated in the onboarding. To support each patient with the right therapy content and training videos, the app needed to capture a precise picture of their medical situation upfront. Diagnosis, surgical status, orthotic devices, individual movement limits, load capacity. All without overwhelming patients who often start the app in pain, stress, and uncertainty about their own condition.

My contribution in this project was primarily conceptual. The visual design system was already in place, and I worked within the given design language, focusing on flow logic, branching decisions, and how patients move through the app. My conceptual work covered multiple areas and features such as the full shoulder onboarding as the main focus, gamification of training progress, the WORCI questionnaire and health score, and smaller features like the biometric login.

02 / 04

Personalized Onboarding for Shoulder Patients

The shoulder onboarding became the core of this project. I designed it end to end, from the conceptual flow logic to the final screens to a clickable prototype used for testing. The flow had to capture a complex medical picture in a sequence that patients could actually complete. Diagnosis selection (rotator cuff injury or impingement), affected side, surgical status with timing, current use of an abduction pillow or orthosis, specific movement restrictions in flexion and internal and external rotation, and load capacity. Each answer branched the path, and each combination led to a different personalized training concept across multiple rehabilitation phases.

A central design challenge was reducing cognitive load in a context where most patients are not medical experts. Every question needed clear medical language alongside accessible cues, plus a fallback to consult their doctor or physiotherapist when uncertain. The final flow handled eight distinct case paths and produced fully personalized training content from a single onboarding session.

03 / 04

Prototyping the onboarding for user testing

The branching complexity of the onboarding made it necessary to evaluate the concept in a user testing. I built a clickable prototype covering the possible use cases end to end, not as a visual reference for development but as a functional sequence patients could move through during user testing. The prototype let the team validate whether the medical questions felt accessible to non-medical patients and whether the personalization landed accurately at the end of the journey.

04 / 04

Gamification of Training Progress

Adherence is the central challenge in digital therapy. Patients who do not train consistently do not get better. I worked on the conceptual foundation for visualizing progress and rewarding consistent training, drawing on behavioral design and gamification principles to support sustained training across the recovery journey. The patterns had to work for the rhythm of rehabilitation, where progress is slow and deeply personal.

This part of the project also gave me more room to work visually. I designed the illustrations for the awards system, balancing warmth and reward with the visual restraint the established design language required.

01

What surprised me

How much of healthcare UX is medical translation work. Translating clinical decision trees into patient-readable flows without losing precision turned out to be a craft of its own, more linguistic than visual in many moments.

02

What challenged me

Designing an onboarding that captures clinical complexity without losing patients along the way. Eight branching paths needed to feel like one coherent flow from the patient side, even though the logic underneath was anything but linear.

03

What I would do different

Capacity constraints kept the existing design off the table for optimization, even where I saw clear potential. Next time, I would surface those opportunities earlier so addressing or deferring them becomes a conscious project decision.

04

What I am proud of

Contributing to a certified digital health product where the design directly affects whether patients adhere to therapy. In a Class I medical app, every interaction decision carries weight beyond pure usability. Knowing that the onboarding I designed is what guides a patient into a personalized recovery path makes this one of the most meaningful projects I have worked on.

Takeaways

Here's what I learned.

Learnings

Here's what I learned.

01

What surprised me

How much of healthcare UX is medical translation work. Translating clinical decision trees into patient-readable flows without losing precision turned out to be a craft of its own, more linguistic than visual in many moments.

02

What challenged me

Designing an onboarding that captures clinical complexity without losing patients along the way. Eight branching paths needed to feel like one coherent flow from the patient side, even though the logic underneath was anything but linear.

03

What I would do different

Capacity constraints kept the existing design off the table for optimization, even where I saw clear potential. Next time, I would surface those opportunities earlier so addressing or deferring them becomes a conscious project decision.

04

What I am proud of

Contributing to a certified digital health product where the design directly affects whether patients adhere to therapy. In a Class I medical app, every interaction decision carries weight beyond pure usability. Knowing that the onboarding I designed is what guides a patient into a personalized recovery path makes this one of the most meaningful projects I have worked on.

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