Wilson Iain, Stevens J, Gnananandan J, Nabeebaccus A, Sandison A, Hunter A
Department of Anatomy, School of Biomedical Sciences, Guy's Campus, King's College London, London, SE1 1UL, UK.
Cardiovascular Division, King's College London, London, UK.
Surg Radiol Anat. 2017 Oct;39(10):1135-1141. doi: 10.1007/s00276-017-1841-z. Epub 2017 Mar 17.
The triticeal cartilage (TC) is a small cartilage found within the thyrohyoid membrane. The TC has a variable prevalence between and within individuals. It has been suggested that absence of a TC results from its failure to separate from the superior horn of the thyroid cartilage (SHTC) and that individuals without a TC will have a longer SHTC. This study aims to identify the prevalence of the TC and investigate the relationship between the length of the SHTC and presence of a TC.
Eighty seven adult cadavers underwent dissection. Data were collected on presence or absence of a TC and lengths of SHTC.
A TC was identified in 28 cadavers (33%). In cadavers with a unilateral TC, there was no significant difference between the lengths of the SHTC on sides with a TC (1.6 mm, ±SEM 0.12 mm) to sides without a TC (1.7 mm, ±SEM 0.10 mm) (P = 0.47). In cadavers with no TCs, the length of the SHTCs (1.8 mm, ±SEM 0.04 mm) was significantly longer than the SHTCs of cadavers with a TC present bilaterally (1.4 mm, ±SEM 0.12 mm) (P = 0.02).
A TC was found in 33% of cadavers. This study demonstrates a relationship between the presence of a TC and the length of the SHTC only in cadavers with a TC present or absent bilaterally.
麦粒软骨（TC）是在甲状舌骨膜内发现的一小块软骨。麦粒软骨在个体之间以及个体内部的发生率各不相同。有人提出，麦粒软骨缺失是由于其未能与甲状软骨上角（SHTC）分离，并且没有麦粒软骨的个体将具有更长的甲状软骨上角。本研究旨在确定麦粒软骨的发生率，并研究甲状软骨上角长度与麦粒软骨存在之间的关系。
对87具成年尸体进行解剖。收集有关麦粒软骨存在与否以及甲状软骨上角长度的数据。
在28具尸体（33%）中发现了麦粒软骨。在有单侧麦粒软骨的尸体中，有麦粒软骨一侧的甲状软骨上角长度（1.6毫米，±标准误0.12毫米）与无麦粒软骨一侧的甲状软骨上角长度（1.7毫米，±标准误0.10毫米）之间无显著差异（P = 0.47）。在没有麦粒软骨的尸体中，甲状软骨上角的长度（1.8毫米，±标准误0.04毫米）明显长于双侧都有麦粒软骨的尸体的甲状软骨上角长度（1.4毫米，±标准误0.12毫米）（P = 0.02）。
在33%的尸体中发现了麦粒软骨。本研究仅在双侧有或无麦粒软骨的尸体中证明了麦粒软骨的存在与甲状软骨上角长度之间的关系。
