Clinical Study

Cortical Reorganization Is Associated with Surgical Decompression of Cervical Spondylotic Myelopathy

Table 1

Summary of experimental results in all patients.

Preoperative PostoperativeSignificance

mJOA 12.7 (2.81) 13.81 (3.1)
sMEP 1.64 (1.88) 0.82 (0.89)
7.86 (3.93) 5.22 (2.58)

Group A B A B

sMEP2.03 (1.54)0.89 (0.55)1.01 (1.05)0.48 (0.31)Group A ()
Group B ()
9.07 (4.00)5.60 (2.80)5.87 (2.95)4.00 (1.41)Group A ()
Group B ()
Jebsen tests
Write 23.98 (25.49)12.11 (5.84)20.97 (20.08)11.71 (6.10)Group A ()  
Group B ()
Turn page9.56 (9.15)5.98 (2.22)7.19 (3.53)7.89 (4.86)Group A ()  
Group B ()
Lift small object11.43 (7.06)9.65 (4.26)9.19 (4.13)9.54 (6.10)Group A ()
Group B ()
Feed13.20 (6.74)13.06 (7.12)12.03 (5.89)11.38 (5.74)Group A ()
Group B ()
Stack5.64 (6.43)2.85 (2.17)4.00 (6.13)2.78 (1.07)Group A ()
Group B ()
Lift light can4.23 (3.88)4.69 (2.87)4.21 (3.91)4.56 (3.90)Group A ()
Group B ()
Lift heavy can5.18 (2.34)5.14 (3.34)4.87 (2.02)4.89 (3.33)Group A ()
Group B ()
Other tests
9-hole peg68.36 (41.78)52.63 (30.00)57.39 (28.63)59.77 (34.12)Group A ()
Group B ()
Tap68.63 (12.09)70.43 (10.83)69.79 (4.57)74.79 (8.13)Group A ()
Group B ()
Pinch grip strength15.55 (7.46)20.86 (3.8)17.87 (7.33)22.64 (4.68)Group A ()
Group B ()
Electrophysiology
CMCT
R UL10.77 (3.22)7.89 (2.34)9.88 (2.16)7.69 (2.87)Group A ()
Group B ()
L UL11.65 (3.45)7.99 (2.77)10.45 (2.98)7.62 (2.96)Group A ()
Group B ()
R LL18.34 (3.98)19.23 (4.11)17.97 (4.06)19.86 (4.68)Group A ()
Group B ()
L LL19.11 (4.07)19.25 (4.87)18.78 (4.39)20.12 (4.61)Group A ()
Group B ()

amplitude 1.22 (0.53)1.34 (0.45)1.21 (0.47)1.29 (0.51)Group A ()
Group B ()
0.82 (0.23)0.91 (0.22)0.77 (0.36)0.86 (0.28)Group A ()
Group B ()

Mean values are indicated (standard deviation).
All hand function test results are in seconds.
In healthy controls, mean sMEP was 0.51 (0.28) and was 3.36 (1.21).
CMCT: central motor conduction time (m/s); R: right; L: left; UL: upper limb; and LL: lower limb.
: amplitude (mV)/ amplitude (mV).
denotes statistical significance at .