I would suggest you discuss your questions regarding your radial head fracture with your treating physiotherapist. Range of motion measurements can vary for an injury from day to day depending on a variety of factors such as the level of aggravation / swelling etc. in addition measurements will vary depending on the measuring method used (e.g. visual / goniometer etc.) and between practitioners based on anatomical land marks used. You may be interested in checking out the above link for detailed information on these injuries.

Hope that helps,

PhysioAdvisor
www.PhysioAdvisor.com.au