综合起来，传统健侧颈7移位组，只有正中神经支配的屈肌群恢复，而健侧颈7

In summary, in the traditional contralateral neck 7 transfer group, only the flexor group innervated by the median nerve recovers, while the contralateral neck 7 directly repairs the lower trunk group, and the flexor group innervated by the ulnar nerve and the median nerve has recovered. For the recovery of the flexor wrist flexor muscles, the direct displacement of the neck 7 to the lower trunk is better than the conventional neck 7 displacement.

Taken together, the traditional healthy side neck 7 shift group, only the positive nerve-dominated flexion group recovery, and the healthy side neck 7 direct repair of the lower dry group, the ruler nerve and the positive nerve-dominated flexion muscle group are restored, so, in terms of the condescensive muscle recovery, the neck 7 direct displacement under the dry than the conventional neck 7 shift effect is good.

To sum up, in the traditional contralateral C7 transfer group, only the flexors innervated by the median nerve recovered, while in the contralateral C7 direct repair group, both the ulnar nerve and the flexors innervated by the median nerve recovered. Therefore, in terms of the recovery of flexor carpi and flexor digitorum, the effect of C7 direct transfer of the lower trunk is better than that of the conventional C7 transfer.