Cortical Reorganization Is Associated with Surgical Decompression of Cervical Spondylotic Myelopathy

Figure 3

Schematic diagram depicting motor output mapping of a patient in Group A. In the preoperative grid, sMEP is 1.7 mV as sum total of 10 stimulation positions eliciting an MEP (). Postoperatively, sMEP was reduced to 0.7 mV and to 5. sMEP, sum of MEP amplitudes in mV.

(a)

(b)