Injury occurring to a nerve intraoperatively is usually due to compression or stretching of the nerve.
手术当中出现的神经损伤多为压迫或牵拉所致。
2
Lacrimal gland enlargement may be seen. CT and MRI may also show "stretching" and apical crowding of the optic nerve with an enlarged superior ophthalmic vein.
泪腺增大也可以出现，CT和MRI可能表现为“拉胀”，视神经尖端拥挤，眼上静脉扩张。
3
Conclusion:The rushing force of dislocated radial head, and the contusion, compression, stretching and adhesion of the nerve are all contributory factors of the nerve injury.