Galeazzi Test or Allis Sign 

Galeazzi Test is also known as Allis Sign. It is a good screening test for limb length discrepancy.
It can be quickly done in outpatients and can give a fair idea about shortening related to femur and tibia.
This video demonstrates in detail, how to do this test properly. In this video there is demonstration of test in normal and patients with positive clinical findings.