Femoral nerve response

[troy503]

I was injured 2 years ago at work.Ihad to have 2 knee surgeries and developed atrophy in r. quad. had an emg done that showed s1 radiculopathy had another emg,nerve study done two weeks ago and now I have no response in right or left femoral motor nerves  and positive waves in right medial gastroc somebody please tell me what would cause this.

[troy503]

have had mri and mylogram and it only showed DDD

[PaulMD]

Hi there.

The loss of response from the bilateral femoral motor nerves may indicate a nerve root compression problem, or a primary nerve problem like ALS.   The lack of motor innervation can really cause the muscles the nerve supplies to shrink or atrophy.  The first sign of these events may be weakness of the involved muscle group.  The condition of the vertebral column should be assessed to rule out extrinsic compression.  This can be done through an MRI of the spine.  The MRI may also demonstrate if there is a primary nerve problem.  I suggest you discuss all of these options with your doctors.

Regards and God bless.