Fig. 4From: An unusual complication of sacral nerve root injury following bone marrow harvesting: a case reportMotor unit action potential (MUAP) on foot intrinsic muscles at 6 month (a. left adductor hallucis, b. left abductor digiti minimi) since symptom onset. Motor unit action potentials (MUAPs) of polyphasic pattern are observed, indicating recovery stateBack to article page