Research Article

Corticospinal Tract Wiring and Brain Lesion Characteristics in Unilateral Cerebral Palsy: Determinants of Upper Limb Motor and Sensory Function

Table 3

Descriptive statistics of the sensory function ((a) stereognosis (number of correctly recognized objects), (b) two-point discrimination, and (c) touch sensation) according to each of the variables significantly contributing to each prediction model.
(a)

Stereognosis (number of correctly guessed objects)
0123456

Lesion timing
 PV (%)0 (0%)0 (0%)1 (25%)0 (0%)5 (71%)6 (67%)17 (44%)
 CSC (%)5 (100%)2 (100%)3 (75%)1 (100%)2 (29%)3 (33%)1 (6%)
CST wiring
 Contralateral (%)0 (0%)0 (0%)1 (25%)0 (0%)0 (0%)1 (11%)13 (72%)
 Bilateral (%)4 (80%)0 (0%)2 (50%)0 (0%)3 (43%)3 (33%)3 (17%)
 Ipsilateral (%)1 (20%)2 (100%)1 (25%)1 (100%)4 (57%)5 (56%)2 (11%)
Lesion extent
 IpsilesionalMe (IQR)13 (2.07)13 (—)10 (3.88)6 (3.50)6 (5.25)5.25 (3.75)

(b)

Two-point discrimination
Normal (≤4 mm)Impaired (>5 mm)

Lesion timing
 PV (%)26 (93%)3 (17%)
 CSC (%)2 (7%)15 (83%)
Lesion extent
 IpsilesionalMe (IQR)5.25 (3.88)12 (5.25)

(c)

Threshold of touch sensation
NormalDiminished light touchDiminished protective sensationLoss of protective sensationUntestable

Lesion extent
 IpsilesionalMe (IQR)6 (4.50)10.50 (11.25)13 (2.41)12.50 (—)

PV: periventricular lesion; CSC: corticosubcortical lesion; CST: corticospinal tract; : number of cases; Me: median; IQR: interquartile range.