title: Endoscopic Reconstruction of Isolated Orbital Floor Wall Fracture Considering Orbital Floor Slope.
abstract: OBJECTIVE
  To present a surgical technique for the reconstruction of the orbital floor slope in patients of isolated orbital floor fracture and to evaluate the effectiveness of this technique.
  
  
  METHODS
  The authors conducted a retrospective review of all patients who underwent reconstruction of isolated orbital floor wall fracture between June 2010 and July 2015. The authors reviewed patient demographics, degree of enophthalmos, ocular motility and diplopia test results, and surgical complications.
  
  
  RESULTS
  This study included 33 eyes from 33 patients. The mean time interval from trauma to surgery was 24.9 days (range, 5-360 days). The average postoperative follow-up period was 7.4 months (range, 3-28 months). The degree of enophthalmos preoperatively and 1 week, 1 month, and 3 months postoperatively was -1.55 mm (range, -3 to -0.5 mm), 0.22 mm (range, -0.5 to +1.0 mm), -0.06 mm (range, -1.0 to +1.0 mm), and -0.13 mm (range, -0.5 to +0.5 mm), respectively. The mean improvement in enophthalmos at postoperative 3 months was 1.41 mm compared with that in the preoperative data (P value <0.001). There were no patients with residual enophthalmos greater than 1 mm after reconstruction.
  
  
  CONCLUSIONS
  Endoscopic orbital floor slope reconstruction in isolated orbital floor wall fracture using a layered porous polyethylene barrier implant is a very useful surgical technique for safely identifying the posterior margin of a fracture and easily reconstructing the orbital floor slope. The demonstration of slight exophthalmos of the corrected side about 1 to 2 mm at the end of the operation was also necessary.
authors.affiliation: *Department of Ophthalmology, Korea University College of Medicine, Seoul †Department of Ophthalmology, Chungmu Hospital, Cheonan ‡Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang §Department of Ophthalmology, KEPCO Medical Center, Seoul, Korea.
authors.forename: Jinhwan
authors.initials: J
authors.lastname: Park
authors.forename: Sungwon
authors.initials: S
authors.lastname: Yang
authors.forename: Joonsik
authors.initials: J
authors.lastname: Lee
authors.forename: Minwook
authors.initials: M
authors.lastname: Chang
authors.forename: Hwa
authors.initials: H
authors.lastname: Lee
authors.forename: Minsoo
authors.initials: M
authors.lastname: Park
authors.forename: Sehyun
authors.initials: S
authors.lastname: Baek
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D015841:Enophthalmos / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009887:Ophthalmoscopy / Q000379:methods; D009915:Orbit / Q000601:surgery*; D009917:Orbital Fractures / Q000601:surgery*; D011095:Polyethylenes; D019736:Prostheses and Implants; D019651:Plastic Surgery Procedures / Q000379:methods*; D012189:Retrospective Studies; D055815:Young Adult
chemical_list: C084562:Medpor; D011095:Polyethylenes