title: Radiologic and facial morphologic long-term results in treatment of orbital floor fracture with flexible absorbable alloplastic material.
abstract: OBJECTIVE
  Although orbital floor fractures are frequently treated by the Ethisorb patch or polydioxanone foil, the utility of these treatments in extensive fractures remains controversial. The purpose of this study was to examine objectively the extent to which such flexible absorbable materials can restore orbital geometry in comminuted and defect fractures.
  
  
  METHODS
  Twenty-one patients with isolated comminuted or defect fractures of the orbital floor (mean, 4.32 cm(2)) were recruited for this retrospective study. Using an infraorbital approach, 15 patients received an Ethisorb patch, whereas polydioxanone foil (0.25 mm) was used in the remaining cases. Follow-up examinations with cone-beam computed tomography and 3-dimensional facial scanning occurred on average 27.4 months postoperatively. Orbital heights and volumes were measured on the fracture side and compared with the unaffected side. Based on 3-dimensional facial scan data, the ocular bulb position was assessed in the sagittal and vertical directions. For all parameters, the difference between the left and right sides was calculated, which was statistically significant compared with the side difference of an age- and gender-matched control group using unpaired t test (P < .05).
  
  
  RESULTS
  No statistically significant differences were observed in any variable between the surgical and control cohorts. A decreased diplopia rate of 38.14% was attained by the surgical intervention.
  
  
  CONCLUSIONS
  The reconstruction of moderate to extensive orbital floor fractures can be provided with polydioxanone foil or the Ethisorb patch without significant changes in orbital geometry.
authors: Department of Oral, Maxillofacial, and Plastic Facial Surgery, University Hospital of Aachen University, Aachen, Germany. Mgerressen@ukaachen.de
authors: Marcus
authors: M
authors: Gerressen
authors: Simone
authors: S
authors: Gillessen
authors: Dieter
authors: D
authors: Riediger
authors: Frank
authors: F
authors: Hölzle
authors: Ali
authors: A
authors: Modabber
authors: Alireza
authors: A
authors: Ghassemi
mesh_terms: D020341:Absorbable Implants; D000328:Adult; D001672:Biocompatible Materials / Q000737:chemistry*; D016022:Case-Control Studies; D002508:Cephalometry / Q000379:methods; D054893:Cone-Beam Computed Tomography / Q000379:methods; D004172:Diplopia / Q000601:surgery; D005123:Eye / Q000000981:diagnostic imaging / Q000473:pathology; D005145:Face / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005260:Female; D005500:Follow-Up Studies; D018460:Fractures, Comminuted / Q000601:surgery*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D008875:Middle Aged; D061848:Optical Imaging / Q000379:methods; D009915:Orbit / Q000000981:diagnostic imaging / Q000473:pathology; D009917:Orbital Fractures / Q000601:surgery*; D018583:Pliability; D016687:Polydioxanone / Q000737:chemistry*; D011100:Polyglycolic Acid / Q000737:chemistry*; D019651:Plastic Surgery Procedures / Q000295:instrumentation / Q000379:methods; D012189:Retrospective Studies; D055815:Young Adult
chemical_list: D001672:Biocompatible Materials; C460779:Ethisorb; D011100:Polyglycolic Acid; D016687:Polydioxanone