Lannigan F J, O'Higgins P, Oxnard C E, McPhie P
Perth Surgicentre, Western Australia.
J Anat. 1995 Jun;186 ( Pt 3)(Pt 3):651-5.
The changes that occur in the normal human incus with age have been investigated. Evidence for age-related changes in this ossicle, especially in the region of the long process, has been accumulating over the last 30-40 years and yet they have neither been confirmed quantitatively nor explained satisfactorily. In this study the results of a morphometric study of the long processes of a series of normal incudes are presented. These demonstrate that the lenticular and long processes undergo progressive symmetric resorption with advancing age. We consider these findings in the light of previous considerations of incudal remodelling and propose that these remodelling changes may reflect a normal adaptive response to the biomechanical milieu of the human middle ear.
人们已经对正常人类砧骨随年龄发生的变化进行了研究。在过去30至40年里，有关这块听小骨尤其是长突区域与年龄相关变化的证据不断积累，但这些变化既未得到定量证实，也未得到令人满意的解释。在本研究中，展示了对一系列正常砧骨长突进行形态测量研究的结果。这些结果表明，随着年龄增长，豆状突和长突会逐渐发生对称性吸收。我们根据之前对砧骨重塑的考量来审视这些发现，并提出这些重塑变化可能反映了对人类中耳生物力学环境的一种正常适应性反应。
