translate English to French: Blade undercut is prepared by removing the M. subscapularis, M. teres major from the medial surface of the scapular boneblade The muscle consists of 3 parts and is trimmed to the required specification.
Le dessus de palette est préparé en enlevant le M. subscapularis et le M. teres major de la surface médiane de l'omoplate.  Le muscle, qui se compose de trois parties, est paré selon les spécifications requises.