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What is Which of the following movements is restricted in Perthe’s disease? and explain in detail?
There is limitation of abduction & internal rotation due spasm of muscles. 
Other signs : 

antalgic gait * muscle spasm detected by roll test 
* proximal thigh atrophy 
* short stature Symptoms: painless limp, mild pain in the hip or anterior thigh or knee ,onset of pain may be acute or insidious