Rodriguez-Niedenführ Marc, Vazquez Teresa, Ferreira Bartolome, Parkin Ian, Nearn Lynette, Sañudo Jose R
Unit of Anatomy and Embryology, School of Medicine, Autonomous University of Barcelona, Spain.
Clin Anat. 2002 Mar;15(2):135-8. doi: 10.1002/ca.1108.
The incidence and morphology of the intramuscular Martin-Gruber anastomosis are presented based on the study of 118 human cadavers (55 male, 63 female). The Martin-Gruber anastomosis was found in 25 (21.2%) of the 118 cadavers. It occurred in 11 (20%) of the 55 male cadavers (4 bilateral, 7 unilateral; 5 left and 2 right) and in 14 (22.2%) of the 63 female cadavers (2 bilateral, 12 unilateral; 8 left and 4 right). Therefore, the Martin-Gruber anastomosis was found in 31 (13.1%) of the 236 upper limbs. According to a recent classification (Rodríguez-Niedenführ et al., 2000), pattern I was found in 29 cases (93.5%), corresponding to Type A in 13 (41.9%), Type B in 3 (9.7%) and Type C in 13 (41.9%), whereas pattern II was found in 2 cases (6.5%), both being a duplication of Type IC. Intramuscular Martin-Gruber anastomosis was a single anastomosis that originated in all cases from the anterior interosseous nerve (pattern IC) and then passed through a muscle bundle of the flexor digitorum profundus and behind the ulnar artery to join the ulnar nerve as a single connecting branch. It did not send branches to the flexor digitorum profundus. This intramuscular course was observed in 3 of the 13 cases of Type C anastomosis (23.1%) or 3 cases out of 31 Martin-Gruber anastomoses (10%).
基于对118具人类尸体（55具男性，63具女性）的研究，介绍了肌内Martin - Gruber吻合的发生率和形态。在118具尸体中有25具（21.2%）发现了Martin - Gruber吻合。在55具男性尸体中有11具（20%）出现（4例双侧，7例单侧；5例左侧，2例右侧），在63具女性尸体中有14具（22.2%）出现（2例双侧，12例单侧；8例左侧，4例右侧）。因此，在236条上肢中有31条（13.1%）发现了Martin - Gruber吻合。根据最近的分类（Rodríguez - Niedenführ等人，2000年），I型在29例（93.5%）中被发现，其中13例（41.9%）对应A类，3例（9.7%）对应B类，13例（41.9%）对应C类，而II型在2例（6.5%）中被发现，均为IC型的重复。肌内Martin - Gruber吻合是一种单一的吻合，在所有病例中均起源于骨间前神经（IC型），然后穿过指深屈肌的一束肌纤维并在尺动脉后方，作为单一连接分支与尺神经相连。它不向指深屈肌发出分支。在13例C型吻合中的3例（23.1%）或31例Martin - Gruber吻合中的3例（10%）观察到了这种肌内走行。
