Treatment Design 1.0 (TKA, THA)
Executive Summary
As the sole UX designer on this Stryker program, I replaced a costly third-party segmentation tool with an in-house workflow purpose-built for Mako-assisted TKA and THA planning. The key tradeoff was balancing automation against surgeon trust, validating each automated step before removing it from the manual workflow. The result: surgical segmentation time dropped 75%, from roughly 60 minutes to 15 minutes per case.
Purpose
The Treatment Design Application 1.0 is a software application that aids the user in performing the pre-operative planning process for Mako-assisted TKA and THA procedures. As the sole UX designer on this program, I owned the end-to-end design strategy, replacing a costly third-party segmentation tool and reducing surgical segmentation time by 75%, from approximately 60 minutes to 15 minutes per case.
Key Details: Check Scan Quality, Compute segmentation and generate 3D model
Role: Senior Staff UX Designer
Timeline: 2 Years
Team: 2 System Engineers, 5 Developers, 1 Usability Engineer, 1 Advanced Ops Lead, 1 SQA Engineer, 1 Strategic Marketing
The Problem to Solve
Background: Computed Segmentation of CT scan images to generate the patient specific 3D model of the anatomy
Eliminate dependency on third-party software tool (Mimics)
Reduce risk of use errors
Reduce manual effort and time for planning by 40%
Research & Insights
Understand the needs, workflows, and pain points of the end-users, including surgeons, the segmentation team, and Makoplasty specialists, through direct engagement and workflow observation.
User Group
Segmentation Team, Segmentation Team Manager, Makoplasty Specialist
Demographics
70% Female - 15-55 years old
Use Environment
Office Setting
Project Cost
$1,409,000
Product Needs
Access patient imaging data and case information from network database
Generate the patient specific 3D models and anatomic landmarks
Review and revise the segmentation results in order to generate a 3D model
Current PAIN POINTS
Tedious and time consuming
Many steps can be automated
3rd party application high cost / basic support
