Caetano Edie Benedito, Vieira Luiz Angelo, Sabongi Rodrigo Guerra, Correio Luca Martinez, Ogata Kelson Koiti, Boni Eduardo Baldy de Sousa
Pontifícia Universidade Católica de Säo Paulo, Faculdade de Ciências Médicas e da Saúde, Department of Orthopedic Surgery, Sorocaba, SP, Brazil.
Universidade Federal do Estado de São Paulo (UNIFESP), São Paulo, SP Brazil.
Acta Ortop Bras. 2018;26(4):222-226. doi: 10.1590/1413-785220182604191853.
The objective of this paper was to study the anatomical variations of the flexor carpi radialis muscle (FCR) and determine in cadaver limbs whether the FCR nervous branch can be connected to the posterior interosseous nerve (PIN) without tension and how close to the target muscles the transfer can be performed.
Thirty cadaveric upper limbs were dissected.
The FCR received exclusive innervation of the median nerve, distally to the intercondylar line of the humerus. In 5 limbs, an isolated branch was found and in 25, a common trunk with other nervous branches occurred. We investigated whether the branch for the FCR was long enough to be transferred to the PIN. The diameter of the nerve branch for the FCR corresponded on average to 50% of the PIN.
In 12 limbs, the branch destined to the FCR could be connected to the PIN, distally to the nerve branches to the supinator muscle even during the movements of the forearm and the elbow. In 18 specimens, it was necessary to mobilize the PIN for this innervation.
本文旨在研究桡侧腕屈肌（FCR）的解剖变异，并在尸体上肢中确定FCR神经分支能否无张力地连接至骨间后神经（PIN），以及该移位可在距目标肌肉多近的位置进行。
解剖30具尸体上肢。
在肱骨髁间线远侧，FCR由正中神经单独支配。5例发现有孤立分支，25例与其他神经分支形成共同干。我们研究了FCR的分支是否足够长以移位至PIN。FCR神经分支的直径平均相当于PIN的50%。
在12例上肢中，即使在前臂和肘部运动时，支配FCR的分支也可在支配旋后肌的神经分支远侧连接至PIN。在18个标本中，为实现这种神经支配有必要游离PIN。
