Spine Impairment
AMA Guides 5th & GEPI 2
Free · Designed for iPad. Not verified for macOS.
Spine Impairment Calculator is a professional reference tool for calculating permanent impairment of the spine under the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition (Chapter 15), with an optional overlay for the Queensland GEPI 2nd Edition.
Built for orthopaedic surgeons, occupational physicians and medico-legal assessors, it covers both AMA methods and shows its working at every stage, including the jurisdiction-correct rule for each region.
METHODS COVERED
• Diagnosis-Related Estimates (DRE) — cervical, thoracic and lumbar (Tables 15-3 / 15-4 / 15-5), with ADL adjustment (GEPI §4.35)
• Range of Motion (ROM) method — inclinometer-based, with diagnosis (Table 15-7) and spinal nerve deficits (§15.8d)
• Corticospinal tract impairment (Table 15-6, sub-tables a–g)
• Surgery modifiers (GEPI Table 4.2)
• Pelvis
JURISDICTION MODES
• AMA 5 · International — AMA Guides 5th Edition (DRE and ROM)
• Queensland — DRE method only, with the GEPI 2nd Edition overrides
Queensland uses the DRE method exclusively (GEPI §4.1); the selected basis is recorded on every report.
TRANSPARENT AND DETERMINISTIC
• Per-region and whole-person totals update live
• Within a region the highest impairment governs; regions combine via the Combined Values Chart (§4.32)
• The full step-by-step derivation can be exported as a report
PRIVATE BY DESIGN
All calculations run on your device. No account, no sign-in, and no data leaves your phone.
IMPORTANT
This app is a calculation aid intended for use by registered health practitioners. It does not diagnose, provide medical advice, or replace professional assessment. All values should be verified against the source tables, and the examining clinician is responsible for the final assessment.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
AMA5 and Queensland GEPI accuracy and reliability update.
Corrected spinal nerve combination and ankylosis calculations, and Queensland DRE/ADL allocation. Improved pelvic options, exact-value validation, assessment separation and local report dates. Added checks to prevent counting the same injury-related ADL increase more than once.
This update continues to cover AMA5 and Queensland GEPI only.
The developer, david melsom, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- david melsom
- Size
- 1.9 MB
- Category
- Medical
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 David Melsom