Abstract：
UNASSIGNED: Inflammatory conditions such as chronic otitis media (COM) can cause irreversible impairments in the microarchitecture and functions of the incus, which subsequently leads to conductive hearing loss.
UNASSIGNED: To investigate bone mineral density (BMD) of the incus body (IB) and long process (ILP) on preoperative temporal CT in COM patients with and without incudo-stapedial joint discontinuity (ISJD), and also to determine the association between BMD values and the postoperative air-bone gap (ABG) in the ISJD group.
UNASSIGNED: The mean IB density (IBD)/occipital bone density (OBD) and ILP density (ILPD)/OBD values were compared between the patients with and without ISJD. The correlation between ABG gain and preoperative incus density values was assessed in the ISJD group.
UNASSIGNED: The mean IBD/OBD and ILPD/OBD values were significantly higher in patients with intact ISJ. There was a moderate positive correlation between postoperative ABG gain and ILPD/OBD values in the ISJD group.
UNASSIGNED: The decrease in BMD of the incus may involve ILP as well as IB in patients with ISJD caused by ILP lysis in COM. A higher preoperative ILPD/OBD was correlated with a higher postoperative ABG gain in COM patients with ISJD.
UNASSIGNED: To investigate bone mineral density (BMD) of the incus body (IB) and long process (ILP) on preoperative temporal CT in COM patients with and without incudo-stapedial joint discontinuity (ISJD), and also to determine the association between BMD values and the postoperative air-bone gap (ABG) in the ISJD group.
UNASSIGNED: The mean IB density (IBD)/occipital bone density (OBD) and ILP density (ILPD)/OBD values were compared between the patients with and without ISJD. The correlation between ABG gain and preoperative incus density values was assessed in the ISJD group.
UNASSIGNED: The mean IBD/OBD and ILPD/OBD values were significantly higher in patients with intact ISJ. There was a moderate positive correlation between postoperative ABG gain and ILPD/OBD values in the ISJD group.
UNASSIGNED: The decrease in BMD of the incus may involve ILP as well as IB in patients with ISJD caused by ILP lysis in COM. A higher preoperative ILPD/OBD was correlated with a higher postoperative ABG gain in COM patients with ISJD.
摘要：
■慢性中耳炎（COM）等炎症性疾病可导致砧骨微结构和功能的不可逆损伤，随后导致传导性听力损失。
■为了研究有或没有颈-骨关节不连续（ISJD）的COM患者术前颞叶CT上的砧骨（IB）和长突起（ILP）的骨密度（BMD），并确定ISJD组的BMD值与术后气骨隙（ABG）之间的关联。
■比较有无ISJD患者的平均IB密度（IBD）/枕骨密度（OBD）和ILP密度（ILPD）/OBD值。在ISJD组中评估了ABG增益与术前砧骨密度值之间的相关性。
■完整ISJ患者的平均IBD/OBD和ILPD/OBD值明显更高。ISJD组术后ABG增加与ILPD/OBD值呈中度正相关。
■在COM中ILP溶解引起的ISJD患者中，砧骨BMD的降低可能涉及ILP和IB。在患有ISJD的COM患者中，术前较高的ILPD/OBD与术后较高的ABG增益相关。
■为了研究有或没有颈-骨关节不连续（ISJD）的COM患者术前颞叶CT上的砧骨（IB）和长突起（ILP）的骨密度（BMD），并确定ISJD组的BMD值与术后气骨隙（ABG）之间的关联。
■比较有无ISJD患者的平均IB密度（IBD）/枕骨密度（OBD）和ILP密度（ILPD）/OBD值。在ISJD组中评估了ABG增益与术前砧骨密度值之间的相关性。
■完整ISJ患者的平均IBD/OBD和ILPD/OBD值明显更高。ISJD组术后ABG增加与ILPD/OBD值呈中度正相关。
■在COM中ILP溶解引起的ISJD患者中，砧骨BMD的降低可能涉及ILP和IB。在患有ISJD的COM患者中，术前较高的ILPD/OBD与术后较高的ABG增益相关。
