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KMID : 0361020000430060593
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Korean Journal of Otolaryngology - Head and Neck Surgery
2000 Volume.43 No. 6 p.593 ~ p.597
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Healing of Bony Labyrinth after Transection and Occlusion of Lateral Semicircular Canal
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1남부현/1Boo Hyun Nam
1양종호/1박찬일/2정태건/1Jong Ho Yang/1Chan Il Park/2Tae Kun Jung
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Abstract
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-Abstract-
Background and Objectives : Occlusion of semicircular canal has been used for otoneurologic and skull
base surgery with preservation of postoperative hearing. However, research on healing process of the
occluded semicircular canal is scarce. Materials and Methods : We transected and occluded the lateral
semicircular canal of guinea pigs using a surgical drill. Histopathologic changes of the temporal bones
were observed up to the eighth postoperative week. Results : The temporal bone specimens showed that
osteogenic cells proliferated from the perilymphatic fibrous mesh formed a new bone in the occluded
portion of the lateral semicircular canal. Periosteal cells of the endosteum produced a compact bone layer
lining the bony semicircular canal lumen. Periosteal layer produced a woven bone at the surgical defect of
the lateral semicircular canal. Conclusion : This study shows that the perilymphatic fibrous mesh, the
endosteum and the periosteal layer participated in osteogenesis in healing of the bony lateral semicircular
canal after transection and occlusion.
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KEYWORD
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