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Histopathological differences in bony destruction of malleus and incus following mastoidectomy

Published online by Cambridge University Press:  11 June 2010

T Sasaki ,
A Xu ,
K Ito ,
S-I Ishimoto ,
T Yamasoba ,
K Kaga  and
N Yamauchi
T Sasaki*
Affiliation:
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan
A Xu
Affiliation:
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan Department of Otorhinolaryngology, Qilu Hospital, Faculty of Medicine, University of Shandong, Jinan, Shandong, China
K Ito
Affiliation:
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan
S-I Ishimoto
Affiliation:
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan
T Yamasoba
Affiliation:
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan
K Kaga
Affiliation:
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan
N Yamauchi
Affiliation:
Department of Pathology, Faculty of Medicine, University of Tokyo, Japan
*
Address for correspondence: Dr Toru Sasaki, Department of Otolaryngology, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Fax: +81 3 3814 9486 E-mail: [email protected]
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Abstract

Objectives:

Upon direct inspection of surgically removed ossicles from the ears of patients with long-term post-mastoidectomy cavity problems, the extent of malleus destruction often appears greater in patients with a longer duration of cavity problems, whereas the extent of incus destruction does not appear to correlate with the duration of cavity problems. This study aimed to investigate this impression.

Materials and methods:

As a result of total middle-ear reconstruction, 41 ossicles (21 malleus and 20 incus bones) were obtained from 31 patients with post-mastoidectomy cavity problems. The ossicles were examined histopathologically, and the proportion of lamellar bone area to total bone area (expressed as percentage lamellar bone) was measured. We also calculated the inter-operation time, i.e. the time period between the previous mastoidectomy and the recent total middle-ear reconstruction; this parameter was used as an approximate measure of the duration of the patient's cavity problem. Correlations between percentage lamellar bone and inter-operation time were calculated for the two ossicles.

Results:

The range of inter-operation times was seven to 65 years. We observed a correlation between percentage lamellar bone and inter-operation time for malleus bones (r = −0.512, p < 0.05), but not for incus bones.

Conclusion:

These results were in agreement with our pre-study impressions.

Keywords

MastoidChronic Otitis MediaIncusMalleusOtological Surgical Procedures
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 124 , Issue 11 , November 2010 , pp. 1162 - 1166
Copyright
Copyright © JLO (1984) Limited 2010

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References

1 Ekvall, L. Total middle ear reconstruction. Acta Otolaryngol 1973;75:279–81CrossRefGoogle ScholarPubMed
2 Sasaki, T, Xu, A, Ishimoto, S, Ito, K, Yamasoba, T, Kaga, K. Results of hearing tests after total middle ear reconstruction. Acta Otolaryngol 2007;127:474–9CrossRefGoogle ScholarPubMed
3 Ishimoto, S, Ito, K, Sasaki, T, Shinogami, M, Kaga, K. Total middle ear reconstructive surgery for the radicalized ear. Otol Neurotol 2002;23:262–6CrossRefGoogle ScholarPubMed
4 Ishimoto, S, Ito, K, Shinogami, M, Yamasoba, T, Kaga, K. Use of cartilage plate as tympanic membrane in total middle ear reconstructive surgery for infected radicalized ear. Otol Neurotol 2003;24:2–5CrossRefGoogle ScholarPubMed
5 Xu, A, Ishimoto, S, Ito, K, Yamasoba, T, Kaga, K. Assessment of total middle ear reconstruction by patient survey correlated with clinical findings. Auris Nasus Larynx 2003;30:15–20CrossRefGoogle ScholarPubMed
6 Bullough, PG. Bullough and Vigorita's Orthopaedic Pathology, 3rd edn. London: Mosby–Wolfe, 1997;15–17Google Scholar
7 Pollock, FJ. Pathology of ossicles in chronic otitis media. AMA Arch Otolaryngol 1959;70:421–35CrossRefGoogle ScholarPubMed
8 Grippaudo, M. Histopathological studies of the ossicles in chronic otitis media. J Laryngol Otol 1958;72:177–89CrossRefGoogle ScholarPubMed
9 Subotic, R, Femenic, B. Histological changes of incus with cholesteatoma in the attic. Acta Otolaryngol 1991;111:358–61CrossRefGoogle ScholarPubMed
10 Alberti, PW. The blood supply of the long process of the incus and the head and neck of stapes. J Laryngol Otol 1965;79:964–70CrossRefGoogle Scholar
11 Schuknecht, HF. Pathology of the Ear, 2nd edn. Philadelphia: Lea & Febiger, 1993;203–4Google Scholar