Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, Niigata, 950-3198, Japan.
Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan.
Surg Radiol Anat. 2021 Oct;43(10):1603-1607. doi: 10.1007/s00276-021-02753-2. Epub 2021 Apr 27.
The purpose of this study was to clarify the incidence of the transverse bundle (TB) of the ulnar collateral ligament (UCL), the relationships between TB morphology and morphology of the anterior bundle (AB) or posterior bundle (PB) of the UCL, and the relationship between the TB and the posterior common tendon (PCT).
This study examined 38 elbows from 23 cadavers. TB, AB, and PB were classified morphologically. The TB was classified as: type I, TB does not continue the entire length of the AB; or type II, TB continues the entire length of the AB. The AB and PB were classified as: type I, could be separated as single bundles; or type II, could not be separated. We also observed specimens by focusing on the continuity between the TB and PCT. Fisher's exact test was used to examine the relationship between TB type and AB or PB type.
A TB was identified in all 38 elbows (100%), and continued to the AB in all specimens. No significant relationship was evident between TB type and AB or PB type. Continuity of TB fibers and the PCT was seen in 26 elbows (72%).
This study suggested that the morphology of the transverse bundle may be unrelated to the morphology of the anterior bundle or posterior bundle.
本研究旨在阐明尺侧副韧带（UCL）的横行束（TB）的发生率，TB 形态与 UCL 的前束（AB）或后束（PB）形态之间的关系，以及 TB 与后共同肌腱（PCT）之间的关系。
本研究检查了 23 具尸体的 38 个肘部。TB、AB 和 PB 进行了形态学分类。TB 分为：I 型，TB 未连续 AB 的全长；或 II 型，TB 连续 AB 的全长。AB 和 PB 分为：I 型，可分为单个束；或 II 型，不能分开。我们还通过关注 TB 和 PCT 之间的连续性来观察标本。Fisher 精确检验用于检查 TB 类型与 AB 或 PB 类型之间的关系。
所有 38 个肘部（100%）均发现有 TB，所有标本的 TB 均连续至 AB。TB 类型与 AB 或 PB 类型之间无明显关系。26 个肘部（72%）可见 TB 纤维和 PCT 的连续性。
本研究表明，横行束的形态可能与前束或后束的形态无关。
