This anatomic study by Moroder et al. explored the feasibility of doing a middle trapezius transfer. Irreparable supraspinatus tendon tears with associated pain and loss of function are difficult to treat and tendon transfers are a complex solution to this problem.
Moroder, P., Akgün, D., Lacheta, L. et al. Middle trapezius transfer for treatment of irreparable supraspinatus tendon tears- anatomical feasibility study J EXP ORTOP 8, 5 (2021).