A man's wife is upset because when she hugs him with her hands on his left shoulder blade, "it feels creepy." This came on gradually after a recent severe left-sided rotator cuff tear. How long does it usually take to develop muscular atrophy with increased prominence of the scapular spine following a rotator cuff tear?

A) 1 week
B) 2–3 weeks
C) 1 month
D) 2–3 months