title: [Recovery of infraorbital nerve iujury after middle facial fracture].
abstract: OBJECTIVE
  To evaluate the recovery of infraorbital nerve injury after middle facial fracture.
  
  
  METHODS
  28 patients with infraorbital nerve injury were examined in l month, 3 months, 6 months and 12 months after operation by using sharp-blunt test, two-point discrimination,electric pain response test. The data were analyzed with SPSS12.0 software package for Student's t test.
  
  
  RESULTS
  25 cases (25 of 28) with injured nerve recovered normally.The average time of recovery was 25 weeks. The injured nerve didnot recover in 3 of 28. No chronic neuropathic pain was found.
  
  
  CONCLUSIONS
  Most nerve dysfunctions following middle facial fracture are reversible and temporary,very few are permanent. If the injured nerve doesn't recover within 6 months, infraorbital nerve decompression may be selected to promote the recovery of the nerve function.
authors.affiliation: Department of Stomatology, Provincial Hospital affiliated to Shandong University, Jinan 250021, Shangdong Province, China.
authors.forename: Hong-bo
authors.initials: HB
authors.lastname: Zhao
authors.forename: Shi-zhou
authors.initials: SZ
authors.lastname: Zhang
authors.forename: Dong-sheng
authors.initials: DS
authors.lastname: Zhang
authors.forename: Shu-zheng
authors.initials: SZ
authors.lastname: Sun
authors.forename: Jun-jie
authors.initials: JJ
authors.lastname: Liu
mesh_terms: D019299:Decompression, Surgical; D005147:Facial Bones / Q000293:injuries*; D020220:Facial Nerve Injuries / Q000628:therapy*; D050723:Fractures, Bone / Q000150:complications* / Q000628:therapy*; D006801:Humans