目的:在文献中,pi肌(PM)的作用尚不清楚。本研究的目的如下:(1)研究尸体系列中腓肠肌和比目鱼肌之间界面的PM,(2)将普通人群的解剖结果与超声(US)进行比较,(3)确定PM在网球腿(TL)损伤发生中的潜在作用。
方法:首先,对6具尸体进行了描述性和功能性PM解剖研究。第二,对335名受试者中的670头小牛进行了美国评估,没有怀疑大腿或小腿肌肉的临床撕裂(第1组),对89名具有撕裂症状的患者中的89头小牛进行了美国评估(第2组)。研究标准是是否存在PM肌腱和宽度测量(如果存在)。
结果:PM存在于所有尸体中。由于提到的结缔组织粘附,没有明显的PM滑动,对肌腱的牵引显示其“有限的”活动,促进TL损伤。在美国,23名受试者不在下午37时(4.35%)。测量第1组和第2组的PM肌腱宽度,分别,3.93+/-1.10mm和3.96+/-1.10mm。根据侧面(P=0.74)或组(P=0.69),宽度测量值之间没有统计学上的显着差异。仅在第1组中的性别之间发现宽度的显着差异(P=0.014)。
结论:在4.35%的人群中没有PM。PM的收缩可以通过增加远端腱膜间区域的剪切力来促进网腿损伤。
OBJECTIVE: The role of the plantaris muscle (PM) in the literature is not clear. The objectives of this study were as follows: (1) to study PM at the interface between the medial gastrocnemius and soleus muscle in a cadaveric series, (2) to compare anatomic results with ultrasound (US) in the general population, and (3) to identify the potential role of the PM in the genesis of tennis leg (TL) injury.
METHODS: First, a cadaveric study was undertaken on six cadavers for descriptive and functional PM anatomy. Second, US evaluation was carried out for 670 calves in 335 subjects with no suspicion of a clinical tear in the thigh or calf muscle (group 1) and for 89 calves in 89 patients with tear symptoms (group 2). Study criteria were the presence or absence of PM tendon and the width measurement if present.
RESULTS: The PM was present in all cadavers. Traction on the tendon showed its \"limited\" mobility due to the connective tissue adherence mentioned with no apparent gliding of PM, promoting TL injury. In US, 37 PM were absent (4.35%) in 23 subjects. PM tendon width measurement of group 1 and group 2 was, respectively, 3.93 + / - 1.10 mm and 3.96 + / - 1.10 mm. No statistically significant differences between width measurements were found according to side (P = 0.74) or group (P = 0.69). Significant differences in width were only found between genders in group 1 (P = 0.014).
CONCLUSIONS: PM were absent in 4.35% population. The contraction of PM can promote tennis leg injury by increasing the shear forces at the level of the distal inter-aponeurotic region.