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Remodelling of the normal incus
F J Lannigan1, P O'Higgins, P McPhie
1ENT Department, General Infirmary, Leeds, UK.
Clinical Otolaryngology and Allied Sciences
|June 1, 1993
Summary
Bony remodeling in incus bones shows stable areas and progressive erosion in others. Osteoclastic activity increases with age, particularly in the lenticular and long processes of the incus.
Area of Science:
- Anatomy
- Histology
- Osteology
Background:
- The incus is a small ossicle in the middle ear, crucial for hearing.
- Understanding bony remodeling patterns is vital for middle ear research.
Purpose of the Study:
- To investigate the pattern and extent of bony remodeling in normal incus bones.
- To correlate age with changes in incus bone structure.
Main Methods:
- Thirty normal incus bones were analyzed.
- Scanning electron microscopy (SEM) was employed for detailed examination.
Main Results:
- The body and short process of the incus remained stable throughout life.
- The lenticular and long processes exhibited significant osteoclastic activity.
- Progressive erosion was observed in the lenticular and long processes with increasing age.
Conclusions:
- Incus bone remodeling is region-specific, with stability in some areas and significant age-related changes in others.
- Osteoclastic activity drives the erosion of the lenticular and long processes over time.