Initial thickness of calcaneal tendon (m): The thickest sagittal distance between the transverse axes passing along the frontal and posterior surfaces in the initial region of the tendon.
Termination thickness of calcaneal tendon (n): The thickest sagittal distance between the transverse axes passing along the frontal and posterior surfaces in the termination region of the tendon.
Later on, histological tissue samples were taken from the soleus and gastrocnemius muscles and calcaneal tendon for the microscopic analysis.
By removing the cutaneous and subcutaneous fat layer in the posterior region of the leg, the sural nerve, gastrocnemius muscle caput mediale and caput laterale, soleus muscle and calcaneal tendon in the posterior leg were made visible (Fig.
It is stated that the pathologies regarding the calcaneal tendon seen in adults is important (Apaydin et al.; Greenhagen et al.).
Like the other fetal structures, the dimension of calcaneal tendon increases.
In conclusion, our interpretation of the results of this research was that the initial region of calcaneal tendon throughout the fetal period was much thicker, however, the thickness in the termination region of calcaneal tendon continued more rapidly, and that in the postpartum period, the thickness of the initial point slowed down and on the other hand, the termination point continued to get thicker more rapidly and that the thickness in the initial and termination regions of the tendon got balanced during adulthood.
We have only come across one ultrasonographic study researching into the termination positions of soleus muscle in calcaneal tendon in adults and its clinical significance for the matter involved, and analyzing the effect of growth in children on the geometry of gastrocnemius muscle (Pichler et al.; Benard et al.).
Moreover, in the histological sections we took from the calcaneal tendon of the fetuses of 15-40 weeks, we determined that the course of direction of the fibers of tendon was longitudinal throughout the fetal period (Fig.
Calcaneal tendon is the thickest and the strongest tendon in the human body (Apaydin et al.; Doral et al.).
Consequently, we think that in determining the anomaly, pathology and variations with respect to the development of calcaneal tendon during the fetal period, the data obtained in our study will contribute to other studies, such as obstetrics, perinatology, radiology, forensic medicine and phytopathology, and the diagnoses and treatments.
1= Calcaneal tendon, 2= Tibialis posterior artery and vein, 3= Flexor digitorum longus muscle, 4: Tibialis posterior muscle, 5= Medial malleol, 6= Gastrocnemius muscle, 7= Calcaneus.