What's New
iOS 4 Version
Complete rewrite!
Radically different approach and look.
Gone is the 'calibration' instead you 'Set' the instrument to zero each time you measure.
Extension/Flexion is indicated.
Separate 'Goniometer Arms' allow you to visualise what is being measured and calculated.
Full High Resolution icon set for the Retina Display of the iPhone 4 (remains compatible with earlier hardware).
Free update for all our existing customers - as always (thank you all so much for your support).
App Description
An accelerometer based knee goniometer. The application measures tibial inclination and then calculates the knee flexion angle using a trigonometric equation. See www.ockendon.net for details. Eliminates the difficulties of palpating boney landmarks in the femoral segment which result from the cross sectional anatomy. Key assumptions are (a) Morphologically typical adult patient (b) Horizontal supine posture (c) predictable ratio of length femure:tibia.
The application is dependant on a one-off calibration against any (fairly) flat surface.
The application is provided as-is without any waranty of any kind. The work to validate this against a convential goniometer is still in progress.
iPhone Screenshots
(click to enlarge)
App Changes
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