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Relation between preoperative paresis and deterioration in motor function just after the operation. Cases with preoperative paresis showed significant deterioration of motor function just after operation (Chi-square test, p = 0.012).
| Deterioration of motor function just after operation | ||
|---|---|---|
| (+) | (–) | |
| Paresis before operation (+) | 6 | 1 |
| Paresis before operation (–) | 2 | 7 |
