Scholarlink

<p>Körner’s septum (KS), the petro-squamosal lamina of the temporal bone, is a frequent anatomic variant that can mislead surgeons during mastoidectomy by mimicking the medial wall of the antrum. Accurate preoperative identification and thickness measurement on high‑resolution computed tomography (HRCT) may reduce residual disease in chronic otitis media (COM). To quantify thickness of KS on HRCT of temporal bone and correlate radiological measurements with intraoperative measurement in patients with inactive mucosal type of COM. In a prospective cohort of 96 adults undergoing cortical mastoidectomy, HRCT measured KS thickness at anterior, middle and posterior levels. A single surgeon obtained matching intraoperative microruler measurements. Agreement and correlation were analyzed using paired t‑tests, Pearson’s r, and Bland–Altman plots (<i>p</i> &lt; 0.05). KS was identified in all cases. Mean radiological thickness was 1.05 ± 0.25&#xa0;mm; mean intraoperative thickness was 1.01 ± 0.02&#xa0;mm. Correlation was strong (<i>r</i> = 0.92, <i>p</i> &lt; 0.001) with no significant regional differences. Bland–Altman analysis showed excellent agreement within clinically acceptable limits. HRCT provides precise, clinically reliable estimates of KS thickness that closely mirror intraoperative findings. Routine KS assessment can formulate surgical strategy and help prevent incomplete mastoidectomy in COM.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Correlation of Radiological and Intraoperative Measurements of Körner’s Septum Thickness in Chronic Otitis Media: A Prospective Observational Study

  • 期刊论文

  • 发表日期：

    2026年3月4日

查看全文
  • G. Usha,
  • K. C. Prasad,
  • Luke Bosco Suriya Rathnakumar

摘要

Körner’s septum (KS), the petro-squamosal lamina of the temporal bone, is a frequent anatomic variant that can mislead surgeons during mastoidectomy by mimicking the medial wall of the antrum. Accurate preoperative identification and thickness measurement on high‑resolution computed tomography (HRCT) may reduce residual disease in chronic otitis media (COM). To quantify thickness of KS on HRCT of temporal bone and correlate radiological measurements with intraoperative measurement in patients with inactive mucosal type of COM. In a prospective cohort of 96 adults undergoing cortical mastoidectomy, HRCT measured KS thickness at anterior, middle and posterior levels. A single surgeon obtained matching intraoperative microruler measurements. Agreement and correlation were analyzed using paired t‑tests, Pearson’s r, and Bland–Altman plots (p < 0.05). KS was identified in all cases. Mean radiological thickness was 1.05 ± 0.25 mm; mean intraoperative thickness was 1.01 ± 0.02 mm. Correlation was strong (r = 0.92, p < 0.001) with no significant regional differences. Bland–Altman analysis showed excellent agreement within clinically acceptable limits. HRCT provides precise, clinically reliable estimates of KS thickness that closely mirror intraoperative findings. Routine KS assessment can formulate surgical strategy and help prevent incomplete mastoidectomy in COM.