Coomar Lokesh A, Daly Daniel T, Bauman Jay
Center for Anatomical Science and Education, Department of Surgery, Saint Louis University School of Medicine, Saint Louis, MO 63104, USA.
J Funct Morphol Kinesiol. 2022 Jun 9;7(2):49. doi: 10.3390/jfmk7020049.
A novel combination of variations involving the quadratus plantae muscle (QP) and its relationship to the flexor hallucis longus (FHL) tendon was observed unilaterally in the right foot of an 88-year-old female cadaver during routine dissection. The medial head of QP was observed inserting onto the tendon of FHL rather than the tendon of flexor digitorum longus (FDL), while also contributing to an anomalous tendinous slip to the second digit in conjunction with the tendon of FHL. The tendon of FHL also gave off a slip to the third digit. Both tendinous slips attached distally to the digital tendons of FDL. Lastly, the lateral head of QP inserted onto the tendinous slip from FHL to the third digit. Ninety-five additional feet were assessed for these variations, but none were observed. This combination of variations expands upon the proposed actions of QP in the literature. Furthermore, connections between the tendons of the midfoot are of clinical significance for harvesting tendon grafts.
在对一具88岁女性尸体的右脚进行常规解剖时，单侧观察到一种涉及足底方肌（QP）及其与拇长屈肌（FHL）肌腱关系的新型变异组合。观察到QP的内侧头插入到FHL肌腱而非趾长屈肌（FDL）肌腱上，同时还与FHL肌腱一起形成了一条异常的腱性束带至第二趾。FHL肌腱还发出一条束带至第三趾。两条腱性束带均在远端附着于FDL的趾肌腱。最后，QP的外侧头插入到从FHL至第三趾的腱性束带上。另外对95只脚进行了这些变异的评估，但未观察到其他变异。这种变异组合扩展了文献中提出的QP的作用。此外，中足肌腱之间的连接对于采集肌腱移植物具有临床意义。
