Puppe's Rule

 

In cases of Multiple Gun shot injuries sequence of shots may be deduced from Puppe's Rule. 

Puppe's rule states that an extending fracture line will cease if it meets a preexisting fracture or suture line.

Ref: Terminal ballistics: a text and atlas of gunshot wounds, By Malcolm John Dodd, Karen Byrne

Patrick sign

pain from hip disease may mimic pain of lumbar spine disease.Hip pain can be reproduced by internal and external rotation at the hip with the knee and hip in flexion(patrick sign) and by tapping the heel with the examiner's palm while the leg is extended.