My husband had open heart surgery 2 months ago and has complained about a sore left shoulder ever since. is this from the surgery? shoulder was x-rayed and no broken bones.

Need to see a doctor: This could be related to the heart surgery or other problems, such as neck problem, shoulder problem or refer pain from surgery, etc. You need to follow-up with your doctor to get further check-up.

Probably : Often when doing bypass surgery we use the left mammary artery which requires us to pull up on the left side to see it. This could cause pain. When spreading the edges of the sternum apart it can put stress on the shoulder, also. Sometimes subconsciously he maybe trying to protect the breastbone and can pull muscles in other areas like neck and shoulder (when coughing sneezing etc).