Document Detail

Status of the internal orbit after reduction of zygomaticomaxillary complex fractures.
MedLine Citation:
PMID:  15015156     Owner:  NLM     Status:  MEDLINE    
PURPOSE: We sought to determine the status of the internal orbit before and after reduction of zygomaticomaxillary complex (ZMC) fractures when treated without internal orbital reconstruction. PATIENTS AND METHODS: We conducted a retrospective study of preoperative and postoperative computed tomography (CT) scans in 65 patients with unilateral ZMC fractures who were treated by reduction of the ZMC complex without internal orbital reconstruction. The size and location of the internal orbital defects, orbital soft tissue displacement, and orbital volume were assessed in the preoperative and postoperative CT scans. RESULTS: Reduction in the ZMC fractures was considered ideal in 58 of the 65 patients. Only minor malpositions occurred in the remaining 7 patients. The size of the internal orbital defects increased slightly with ZMC reduction but the internal orbital fractures were realigned, and few had increases in orbital volume or soft tissue sagging into the sinuses. Examination of follow-up CT scans in several patients taken weeks to months later showed that the residual defects became smaller and that none of these patients had an increase in orbital volume or soft tissue sagging. CONCLUSION: The preoperative CT scan can be used to assess the amount of internal orbital disruption for purposes of developing a treatment plan in patients with ZMC fractures. When there is minimal or no soft tissue herniation and minimal disruption of the internal orbit, ZMC reduction is adequate treatment.
Edward Ellis; Likith Reddy
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons     Volume:  62     ISSN:  0278-2391     ISO Abbreviation:  J. Oral Maxillofac. Surg.     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2004-03-11     Completed Date:  2004-04-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8206428     Medline TA:  J Oral Maxillofac Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  275-83     Citation Subset:  AIM; D; IM    
Oral and Maxillofacial Surgery, University of Texas Southwestern Medical Center, Dallas 75390-9109, USA.
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MeSH Terms
Aged, 80 and over
Bone Screws
Dislocations / radiography
Follow-Up Studies
Fracture Fixation
Hernia / radiography
Matched-Pair Analysis
Maxillary Fractures / radiography,  surgery*
Maxillary Sinus / radiography
Middle Aged
Orbit / radiography*
Orbital Fractures / radiography,  surgery
Retrospective Studies
Tomography, X-Ray Computed
Zygomatic Fractures / radiography,  surgery*
Comment In:
J Oral Maxillofac Surg. 2004 Jul;62(7):907   [PMID:  15244004 ]

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