Analysis of the morphometry and variations in the extensor digitorum brevis muscle: an anatomic guide for muscle flap and tendon transfer surgical dissection
نویسندگان
چکیده
The extensor digitorum brevis muscle (EDB) is a practical option for use as an island flap or free flap when reconstructing soft tissue defects in the ankle as well as in the entire lower limb. It is frequently used to correct crossover toe deformity and other painful toe disorders. We evaluated the morphometry of the EDB in 44 formalin-fixed limbs. Length and width of the muscles were measured. Surface area was calculated as the product of length and width of the muscle. The length of each tendon was also measured from its origin to the point of distal attachment. Presence of any additional tendons was noted. Mean length, width, and surface area of the muscle were 7.39±0.71 cm, 4.1±0.37 cm, and 30.5±4.78 cm(2) on the right side and 7.2±0.84 cm, 3.9±0.37 cm, and 28.4±5.35 cm(2) on the left side, respectively. Morphometry of the tendons revealed that the tendon of the great toe had the highest mean length (9.5 cm) and the tendon of the fourth toe had the lowest mean length (6.3 cm). Four of the limbs studied (9.09%) had only three tendons. Three of the limbs studied (6.81%) had five tendons, and in one exceptional case (2.27%), six tendons were detected. These observations have significant value and are applicable to plastic and orthopedic surgery.
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First Case Report of Extensor Digitorum Brevis Manus (Edbm) in Iran and Literature Review
During the dissection of a fifty-years old male cadaver with normally fined, we observed a rare variation in the dorsum of its hands in both sides. This variation was abnormal extensor digitorum brevis manus muscle (EDBM), which originated from the dorsum of wrist and inserted to the u]nar side of the index tendon of extensor digitorum muscle. In this case, extensor indicis muscle was absent. I...
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