Dr. Elhassan joined Massachusetts General Hospital in October 2020. Before coming here, he was on the faculty at the Mayo Clinic and was a Professor of Orthopaedic Surgery at Mayo Clinic College of Medicine.
Dr. Elhassan received his medical degree at the American University of Beirut. He completed three years of training in general surgery focusing on cardiothoracic surgery and one year in orthopaedic surgery at the American University of Beirut. Dr. Elhassan went on to complete his residency in orthopaedic surgery at the University of Illinois in Chicago. While there, he received the Senior Alpha Omega Alpha Honor Medical Society, as well as the Robert Ray Award for Research. Dr. Elhassan completed a fellowship in hand and upper extremity at the Mayo Clinic and an additional fellowship in shoulder and elbow surgery at Mass General.
Dr. Elhassan started working at the Mayo Clinic in 2007. He won the Mayo Clinic Teacher of the Year Award for two consecutive years in 2009 and 2010, and his upper extremity service was voted as one of the best rotations for the Mayo Clinic’s residents and fellows.
Dr. Elhassan has been innovative in the field of upper extremity surgery and he has developed numerous novel procedures (20 new surgical procedures for the shoulder, elbow and wrist) through dedicated anatomic and biomechanical studies. The care and outcome of patients, specifically those with complex shoulder and elbow problems, improved significantly because of these innovations. He is considered the world expert in the evaluation and management of scapulothoracic disorders, and tendon transfers around the shoulder and elbow.
Dr. Elhassan has published over 125 peer-reviewed articles and authored thirty book chapters. He has presented at countless meetings both nationally, as well as internationally, and he has won numerous awards for best abstract, paper, poster, video and podium presentation in national and international hand and shoulder and elbow societies. He is also the recipient of the 2015 ASES Traveling Fellowship Exchange Program.
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Shoulder Service
55 Fruit St.
Yawkey Center for Outpatient Care
Suite 3G
Boston, MA 02114
Phone: 617-724-7300
Medical Education
American Board Certifications
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Dr. Elhassan's main research is focused on understanding the anatomy and biomechanics of the shoulder. He was able, with the help of his colleagues, to create a state-of-the-art shoulder model to conduct his studies on. This model has helped in the evaluation of the kinematics of the scapula and the scapulothoracic articulation. In addition, it helped determine the effectiveness of different muscle transfers to reconstruct the deficient rotator cuff, in native shoulders as well as in shoulders with reverse shoulder arthroplasty.
He is extremely knowledgeable in his field, kind, caring and as well as an excellent communicator. You never feel rushed and he always asks at the end of the appointment if you have any questions or concerns. I highly recommend him!
Dr. ElHassan is brilliant, personable, and knowledgeable, and is able to share and communicate clearly and understandably, identifying options and risks.
Excellent. He explained options and we came up with a plan that works for me.
Amazing care provider and surgeon period would highly recommend. [redacted]
Dr. Elhassan was very respectful knowledgeable and put me at ease. [redacted]
Dr. Elhassan is amazing. Just had my second in-person visit with him. I never feel rushed and he ensures all my questions are answered. He listens to understand and also provides me with helpful education. I travel to see him because he is the best of the best.
I am from approximately 5 hours away and had to travel due to a somewhat rare condition. I've seen many different doctors because of this and I am continually amazed not only by Dr. Elhassan but by his entire staff. From [redacted] at the front desk through his NPs and fellows I feel they care truly and test every interaction that way. [redacted] ... Read More
As has been my experience with all of the Staff I've interacted with at MGH, this team was knowledgeable, helpful, patient, and professional. I am grateful.
Yeah, [redacted], who I would speak to, was absolutely incredible. She helped me multiple times, make sure my records were all there in advance and got to Dr. Elhassan. And she really was just very incredible and always followed up and I'm very appreciative. Also, Dr. Elhassan, I thought, was excellent and very thorough and detailed and explain ... Read More
The experience was an enjoyable interaction with persons--particularly Dr. Elhassan-- who were both excellent in their various crafts and attentive in the various conversations that help us come to a conclusion about what sort of procedure we'd choose. Having spent my life as a university lecturer, I know how difficult it can be to communicate to ... Read More