Carlson G D, Botte M J, Josephs M S, Newton P O, Davis J L, Woo S L
Department of Orthopaedic Surgery, University of California San Diego School of Medicine 92103.
J Hand Surg Am. 1993 Jan;18(1):76-82. doi: 10.1016/0363-5023(93)90249-3.
The palmaris longus (n = 10), plantaris (n = 11), and extensor digitorum longus (n = 10) tendons were harvested from cadaver limbs for morphologic and biomechanical comparisons. Eleven flexor digitorum profundus tendons from the index finger were also harvested for comparison of biomechanical properties of the free graft tendons with those of a typical digital flexor. Maximal tendon length, cross-sectional area, volume, stiffness, and modulus of elasticity were determined by measurement, laser micrometry, and tensile testing. The plantaris and extensor digitorum longus yielded the longest grafts, 334 and 325 mm, respectively, compared with the palmaris longus, which yielded only 161 mm of length. Cross-sectional areas were as follows: palmaris longus, 3.1 mm2; plantaris, 1.4 mm2; extensor digitorum longus, 3.3 mm2; and flexor digitorum profundus, 10.6 mm2. Mean volumes were as follows: palmaris longus, 529 mm3; plantaris, 557 mm3; and extensor digitorum longus, 1006 mm3. The palmaris longus and the extensor digitorum longus showed greater stiffness, 42.0 and 47.8 N/mm, respectively, than the plantaris, which had a stiffness of 25.5 N/mm. However, the flexor digitorum profundus showed significantly greater stiffness than all of the graft tendons. The modulus of elasticity ranged from 1161.6 to 1673.0 MPa, with no significant difference between tendons tested. The findings in this study provide data that may be useful in the selection of a specific donor for free tendon grafting.
从尸体肢体上获取掌长肌（n = 10）、跖肌（n = 11）和趾长伸肌（n = 10）肌腱，用于形态学和生物力学比较。还获取了11条来自示指的指深屈肌腱，以比较游离移植肌腱与典型指屈肌腱的生物力学特性。通过测量、激光测微法和拉伸试验确定最大肌腱长度、横截面积、体积、刚度和弹性模量。跖肌和趾长伸肌产生的移植肌腱最长，分别为334和325毫米，而掌长肌产生的长度仅为161毫米。横截面积如下：掌长肌3.1平方毫米；跖肌1.4平方毫米；趾长伸肌3.3平方毫米；指深屈肌10.6平方毫米。平均体积如下：掌长肌529立方毫米；跖肌557立方毫米；趾长伸肌1006立方毫米。掌长肌和趾长伸肌的刚度更大，分别为42.0和47.8牛/毫米，高于刚度为25.5牛/毫米的跖肌。然而，指深屈肌的刚度明显高于所有移植肌腱。弹性模量在1161.6至1673.0兆帕之间，所测试的肌腱之间无显著差异。本研究结果提供的数据可能有助于选择特定的游离肌腱移植供体。
