My 12 year old son has been complaining about pain on his front thigh (quadriceps), since he was 3 years old for both 2 legs. It happens to him after playing and doing activities like sports and after school. It happens to him at least once a week. and it lasts between 12 hours – 72 hours. some time he feels clicking on front quadriceps and he feel relief after clicking. Sometimes he says it is burning and stinging.
Sometimes he needs rest to get rid of the pain. sometimes it is saviour and he can’t walk even for a day and need pain killers. I could say it is always with him. This isssue has affected his running, sport and activities. He is always the last person in all sports activities. Mean he is too slow. we visited many doctors and different x rays and blood tests and many physios. But nothing has been diagnosed. I need help to know what to do and what is his problem. His health and life has been affected because of this issue and he has lost his confidence as he is always looser in all activity games.
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This presentation of symptoms are more likely arteries related.. Claudication is possible as the blood vessels are insufficient to supply the muscles with the nutrients and oxygen ..
Although it is very rare in children but you need to check it with a cardiovascular doctor.. Duplex may show it..
Potassium and calcium deficiency is also a possible cause.
You should do a nerve conduction study to test for rare conduction problems
Like Meralgia paresthetica
or piriformis syndrome
sometimes hip pain is radiated to the thighs and knees. get his MRI hip and thigh done to rule out diseases like perthes disease,avascular necrosis etc.
THIS MAY BE A NEUROPATHIC PAIN DISORDER. QUITE COMMON AT THIS AGE DUE TO VITAMIN B6 AND B12 DEFICIENCY.
GET NERVE CONDUCTION STUDIES DONE FOR THE AFFECTED LOWER LIMB. CONSULT A NEUROLOGIST
this may occur due to carnitine deficiency causing weak muscles or this may be early signs of muscular dystrophy.
get creatine phosphokinase and alkaline phosphatase investigations done.