Are winged scapula abnormal?

Yes.: Usually due to nerve injury to one or two of two different nerves.

Possibly: Scapular winging can be static or dynamic meaning it is present at rest or only with motion. The causes can be multiple including injury to nerves that supply some of the muscles that insert onto the scapula. It can also be present because of a loss of coordinated scapular motion due to occult shoulder instability for example.

Yes.: Can indicate poor function of the nerve that controls the muscles that keep the scapula flat against the rib cage.

Winged scapula: Most winged scapulae occurr ad a result of weakness of the muscles attaching the shoulder blade to the rib cage. Many times this has been caused by injury to the nerve going to those muscles, Fortunately most heal with time. Working with a good shoulder physiotherapist is very helpful during the healing process { may take 4-6 months )