Disciplina de Ortopedia e traumatologia da Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
Aging Male. 2013 Jun;16(2):73-8. doi: 10.3109/13685538.2013.766790. Epub 2013 Feb 27.
The aim of this study was to evaluate the association between frequency of the posterior cruciate ligament (PCL) mechanoreceptors and age in men.
Nineteen normal right knees harvested from human male cadavers were evaluated. Age ranged from 17 to 64 years with a mean of 35 years old. PCL was separated for sampling in femoral and tibial portions. Topographic distribution and frequency within the ligament texture were determined employing the Pro-Image digital analysis system. Mechanoreceptors were counted and classified according to the criteria proposed by Freeman & Wyke.
A total of 1820 mechanoreceptors were found, type II being the most frequent one. Analysis of the femoral portion of the ligament showed an equivalent predominance of Types II and IV mechanoreceptors. Tibial portion had a predominance of type II mechanoreceptors, followed by type IV. At this portion, receptors Types I and III were less commonly identified.
In the tibial portion of the PCL, there is predominance of Type II mechanoreceptors followed by types IV, I and III mechanoreceptors, respectively. No relationship was found between the total number of mechanoreceptors and age in the femoral and tibial portions of the PCL.
本研究旨在评估男性后交叉韧带（PCL）机械感受器的频率与年龄之间的关系。
评估了 19 个取自人体男性尸体的正常右膝。年龄范围从 17 岁到 64 岁，平均 35 岁。PCL 被分离用于在股骨和胫骨部分进行取样。采用 Pro-Image 数字分析系统确定韧带纹理内的拓扑分布和频率。根据 Freeman 和 Wyke 提出的标准对机械感受器进行计数和分类。
共发现 1820 个机械感受器，其中 II 型最为常见。对韧带股骨部分的分析显示，II 型和 IV 型机械感受器具有同等的优势。胫骨部分以 II 型机械感受器为主，其次是 IV 型。在这部分，I 型和 III 型感受器较少见。
在 PCL 的胫骨部分，II 型机械感受器占优势，其次是 IV 型、I 型和 III 型机械感受器。在 PCL 的股骨和胫骨部分，机械感受器的总数与年龄之间没有关系。
