This is a 68 year-old man status post coronary artery bypass graft (CABG) with painful sternum hypertrophic scarring. Long-term lifestyle modifications including increased physical activity were self-reported to be limited by extreme pain along the sternal surgical site. On physical examination he had significant painful hypertrophic scarring along the sternal incision site. Range of motion along the upper extremity elicited pain along the sternal scar areas with horizontal shoulder abduction at forty-five degrees and ninety degrees of shoulder flexion. He also complained of significant 4/10 chronic pain in the area limiting his activity overall. Consultation with dermatology led to the trial of injections of triamcinolone suspension with lidocaine. After three serial injections of escalating steroid amounts, the patient experienced significant relief of pain along the scar area. His range of motion on testing improved by twenty degrees along shoulder abduction and he also had significant improvement on the baseline discomfort. Long-term rehabilitation of cardiac bypass surgery mainly emphasizes secondary prevention via risk factor modification and activity endurance. In this patient Phase Three rehabilitation was complicated by painful sequelae of the CABG in the form of hypertrophic scars that were neglected until careful probing into the clinical situation. Successful treatment of the pain via steroid injections led to improved range of motion and activity tolerance.