Bicep atrophy due to C5 nerve root compression
Has anyone noticed bicep atrophy due to issues at C5? My son has craniocervical instability (C1-C2) but also has bulging discs at C4-5-6. He has been saying that his left bicep is getting smaller as well as his left thigh muscles. Last night I measured them and they are significantly smaller than his right bicep and thigh muscles, and smaller than the last time I measured them.
He rarely has tingling or numbness in his hand. He does feel fatigue and weakness in his left arm and hand. He is a professional guitarist and this is very alarming.