Del Mar Ruiz-Herrera María, Criado-Álvarez Juan José, Suarez-Ortiz Mario, Konschake Marko, Moroni Simone, Marcos-Tejedor Félix
María del Mar Ruiz Clinic, 13600 Alcázar de San Juan, Spain.
Department of Medical Sciences, Faculty of Health Sciences, University of Castilla-La Mancha, 45600 Talavera de la Reina, Spain.
Diagnostics (Basel). 2022 Jun 1;12(6):1367. doi: 10.3390/diagnostics12061367.
Morton's neuroma (MN) is a common condition in clinical practice. The compressive etiology is the most accepted, in which compression occurs in the tunnel formed by the adjacent metatarsals, the deep transverse metatarsal ligament (DTML) and the plantar skin. Ultrasound (US) is a reliable method of study. The presence of insufficient space under the DTML may be related to the appearance of MN.
To verify the relationship between MN and the space under the DTML between the metatarsal heads of the third (M3) and the fourth (M4) metatarsals using US.
This is a cross-sectional epidemiological study. The research study using the ultrasound (US) technique was carried out on 200 feet belonging to 100 patients aged 18 to 65 of both sexes, with a control group formed by 62 patients and a study group formed by 38 patients diagnosed with MN.
The presence of MN and the factors associated with it were studied in 100 patients using ultrasound (US). The assessment and comparison with US of the space inferior to the DTML between M3 and M4 in control groups and patients with MN show that patients with MN have a smaller size in the variable "h" (height or distance DTML-plantar skin), in the variable "b" (base or intermetatarsal distance M3 and M4) and in the variable "s" (surface of the parallelogram "h" × "b"). The predictors of MN are a decrease in dimension "b" and an increase in weight. Sitting in an office chair and the use of a bicycle, due to equinus, have an influence on the space below the DTML, reducing it and promoting the appearance of MN.
The two US measurements ("h" and "b") in the space below the DTML are smaller in patients with MN than in the asymptomatic group. A shorter distance between M3 and M4, and an increase in BMI are predictors of MN.
Morton神经瘤（MN）在临床实践中是一种常见病症。压迫性病因是最被认可的，即压迫发生在由相邻跖骨、跖骨深横韧带（DTML）和足底皮肤形成的通道内。超声（US）是一种可靠的研究方法。DTML下方空间不足可能与MN的出现有关。
使用超声验证MN与第三（M3）和第四（M4）跖骨头之间DTML下方空间的关系。
这是一项横断面流行病学研究。对100例年龄在18至65岁的男女患者的200只脚进行了使用超声（US）技术的研究，其中62例患者组成对照组，38例被诊断为MN的患者组成研究组。
使用超声（US）对100例患者的MN及其相关因素进行了研究。对照组和MN患者中M3和M4之间DTML下方空间的超声评估和比较表明，MN患者在变量“h”（高度或DTML - 足底皮肤距离）、变量“b”（基底或M3和M4之间的跖骨间距离）和变量“s”（平行四边形“h”דb”的面积）方面尺寸较小。MN的预测因素是尺寸“b”减小和体重增加。由于马蹄足，坐在办公椅上和骑自行车会对DTML下方的空间产生影响，使其减小并促进MN的出现。
MN患者DTML下方空间的两项超声测量值（“h”和“b”）比无症状组小。M3和M4之间距离较短以及BMI增加是MN的预测因素。
