Prediction of Enophthalmos by Computer-Based Volume Measurement of Orbital Fractures in a Korean Population

Purpose: To estimate posttraumatic enophthalmos using computer-based volume measurement of the orbital fracture to provide information on surgical guidelines. Methods: The fracture volume of orbital wall fractures in 35 patients who did not undergo surgery was measured using a Rapidia work station system. Hertel ophthalmometry, diplopia, and ocular motility were investigated. The fracture volume measurements relative to the intact contralateral orbit were correlated with enophthalmos, diplopia, and ocular motility. Patients were examined at the initial visit, then at 1 week, 1 month, and 3 months. Results: There was a correlation between the fracture volume and enophthalmos. Late enophthalmos increased in size in proportion to the volume of the fractured site. The predicted orbital fracture volume with an enophthalmos measurement of 2 mm or more was 2.30 ml. Conclusions: Computer-based measurements of orbital fracture volume can be used to predict overall enophthalmos and provide useful information to surgeons.

[1]  B. Smith,et al.  Blow-out fracture of the orbit; mechanism and correction of internal orbital fracture. , 1957, American journal of ophthalmology.

[2]  R. Tadmor,et al.  Orbital fracture evaluation by coronal computed tomography. , 1978, American journal of ophthalmology.

[3]  G Forbes,et al.  Volume measurements of normal orbital structures by computed tomographic analysis. , 1985, AJR. American journal of roentgenology.

[4]  M. Mafee,et al.  Orbital blowout fractures. The prognostic significance of computed tomography. , 1985, Ophthalmology.

[5]  U. Bite,et al.  Orbital Volume Measurements in Enophthalmos Using Three‐Dimensional CT Imaging , 1985, Plastic and reconstructive surgery.

[6]  L. Saint-Louis,et al.  Advanced diagnostic imaging techniques in ophthalmology. , 1987, Advances in ophthalmic plastic and reconstructive surgery.

[7]  R. Mathog,et al.  Orbital wall and volume relationships. , 1988, Archives of otolaryngology--head & neck surgery.

[8]  Osguthorpe Jd.  Orbital wall fractures: evaluation and management. , 1991 .

[9]  J. D. Osguthorpe.  Orbital Wall Fractures: Evaluation and Management , 1991, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

[10]  J. Dutton.  Management of blow-out fractures of the orbital floor. , 1991, Survey of ophthalmology.

[11]  Dutton Jj.  Management of blow-out fractures of the orbital floor. , 1991 .

[12]  R. Whitehouse,et al.  Prediction of enophthalmos by computed tomography after 'blow out' orbital fracture. , 1994, The British journal of ophthalmology.

[13]  P. Rubin,et al.  Blunt Orbital Trauma , 1995, International ophthalmology clinics.

[14]  A. Millman,et al.  Prediction of late enophthalmos by volumetric analysis of orbital fractures. , 1998, Ophthalmic plastic and reconstructive surgery.

[15]  S. Oh,et al.  Pure orbital blowout fracture: new concepts and importance of medial orbital blowout fracture. , 1999, Plastic and reconstructive surgery.

[16]  C. Czerny,et al.  Evaluation of computer-based area and volume measurement from coronal computed tomography scans in isolated blowout fractures of the orbital floor. , 2002, Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons.

[17]  M. Burnstine,et al.  Clinical recommendations for repair of isolated orbital floor fractures: an evidence-based analysis. , 2002, Ophthalmology.

[18]  Xianqun Fan,et al.  Computer-Assisted Orbital Volume Measurement in the Surgical Correction of Late Enophthalmos Caused by Blowout Fractures , 2003, Ophthalmic plastic and reconstructive surgery.