Knee Goniometry? There’s an App for That.

Validation of a Novel Smartphone Accelerometer-Based Knee Goniometer Ockendon M & Gilbert RE.  J Knee Surg. 2012 Sep;25(4):341-5.  https://www.ncbi.nlm.nih.gov/pubmed/23150162 Measuring knee range of motion (ROM) is a common clinical practice among most...