Results of mastoidoplasty according to histological examination and computed tomography
DOI: https://doi.org/10.29296/25877305-2020-07-14
Issue:
7
Year:
2020
Objective: to evaluate the status of an osteograft after mastoidoplasty according to temporal bone
histological examination and computed tomography (CT). Subjects and methods. Ninety-six patients diagnosed
with chronic epitympanic antral suppurative otitis media were operated on. Coarse bone meal was used in 51
(53%) cases; finely dispersed meal was employed in 45 (47%) cases. CT of the temporal bones and histological
examination of the graft were performed in the patients at 12 months after surgery. Results. Analysis of
temporal bone CT data showed that the implanted bone graft was less dense than the cortical plate of the
mastoid process. Nineteen implanted bone graft samples were histologically examined at 12 months after
surgery. Mature bone beams of correct structure were detected in 9 (47.4%) samples. Young bone tissue
elements as osteoid and uneven young osteogenic tissue growths were prevalent in 10 (52.6%) cases where
finely dispersed bone meal had been used. Conclusion. Temporal bone CT allows evaluation of the status of
the implanted bone material in the long-term postoperative period. The histological examination at one year
after surgery indicated that when coarse bone meal versus finely dispersed one was used, the bone material
underwent all stages of integration mainly through osseointegration.
Keywords:
surgery
operative ear disease
mastoidoplasty
osteograft
histological examination
computed tomography
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