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KMID : 0988420010130030279
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Journal of Dental Science (C.N.U.)
2001 Volume.13 No. 3 p.279 ~ p.291
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A clinicostatistical study on condylar fracture
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Abstract
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The present study was aimed to aid the diagnosis and choose the approrpiate treatment method of the fracture. This is the retrospective clinicostatistical study about 87 patients who were treated about condylar fractures for recent 4 years from Apr. 1, 1996 to Apr. 30, 2000 in Chonnam National University Hospital and can be followed up reguarly.
In the incidence of fractures, subjects in the twenties has highest incidence and male has 4.1 time higher prevalance than in female.
The fracture was at the highest incidence in September. The most common cause of the fracture was traffic accident (40.2%), and in case of middle facial concomitant injuries, laceration was 45.1% and the fracture of symphysis was 57.1% in lower facial injuries.
The most common site of the fracture was the condylar neck, followed by subcondye and condylar head in order. patients aged under 11 years were treated closed reduction which was 100% and for those aged over 19 years, open reduction (68%) was preferred.
Most of them were fixed with metal miniplate in case of open reduction. The average period of fixation was 9.8 days, of which was 11.8 days for closed reduction and 8.5 days for open reduction.
The average maximal mouth opening was lower in case of open reduction than in closed reduction in condylar head fracture. Closed reduction and direct fixation with Risdon showed better functional recovery than in SVRO cases.
The complications like fibrous ankylosis and bone resorption of TMJ was happened in the case of open reduction with SVRO. These results suggest that the condylar fracture will be treated with closed reduction if patients are growing children and the fractured condyle was not displaced, otherwise the open reduction will be preferred.
The closed reduction and the direct fixation with Risdon method showed better functional recovery than in SVRO method.
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