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Bone Ninja App for iPad

Practice analyzing deformities by measuring lengths/angles and creating osteotomies with the Bone Ninja app for iPad!

Download Bone Ninja from the App Store

Bone Ninja is an iPad app teaching tool developed by Dr. Shawn Standard and Dr. John Herzenberg at the International Center for Limb Lengthening. It is designed to help surgeons learn to analyze long bone deformities by drawing lines, measuring angles, measuring lengths, and manipulating bone fragments to make osteotomies.

Bone Ninja comes pre-loaded with radiographs of normal legs and deformed legs. You can analyze the provided cases or upload your own. Once your analysis is complete, you can then use the cut-out tool to try different osteotomy solutions. Suggested solutions for the provided cases are available for comparison.

The analysis of the radiographs is based on methodology taught for more than two decades at our annual Baltimore Limb Deformity Course. Bone Ninja is not presented as a clinical tool, but rather an educational tool. It will not “automatically” analyze deformities. The student must first learn the methodology of analyzing and planning deformity correction in order to use Bone Ninja. Bone Ninja is a 21st century mobile alternative to pencil, ruler, goniometer, and paper. Click here to view the Bone Ninja User Guide.

Video Tutorials

Screenshot of a video tutorial demonstrating how to use the Bone Ninja app for deformity correction

Screenshot of a video tutorial demonstrating how to use the Bone Ninja app for deformity correction

Screenshot of a video tutorial demonstrating how to use the Bone Ninja app for deformity correction

Privacy Policy: We respect the privacy of the people who use International Center for Limb Lengthening apps. The Bone Ninja app does not collect, use or distribute any data from the users.