Education

  • College: Cooper Union College, School of Engineering, New York, NY
    Binghamton University, Binghamton, NY
  • Medical School: Weill Medical College of Cornell University, New York, NY
  • Residency: Orthopaedics, Hospital for Special Surgery, New York, NY
  • Fellowship: Sports Medicine and Shoulder Surgery, Hospital for Special Surgery, New York, NY

Biography

Castle Connolly 2021 Top DoctorsDemetris Delos, MD is a fellowship trained, board-certified orthopedic surgeon who specializes in knee, shoulder and elbow conditions. He is a nationally recognized leader in sports medicine and knee and shoulder surgery. Dr. Delos has over 30 peer-reviewed articles and more than 50 national and international presentations. He has authored or co-authored more than five textbook chapters.

Dr. Delos has a particular interest in minimally invasive methods of shoulder surgery and complex knee preservation surgery, including revision surgery for torn ligaments, meniscal and cartilage transplantation, and joint replacement (both partial and total). He has a particular interest in biologic forms of treatment, such as platelet rich plasma (PRP) and stem cell therapy, and has conducted seminal research on the topic.

As an athlete whose playing career was affected by a serious knee injury, Dr. Delos works with competitive athletes and weekend warriors to help them achieve their goal of returning to the highest levels of activity possible. He has extensive experience caring for athletes of all competitive levels, including professional, college and high school athletes. He is a former assistant orthopaedic surgeon for the NY Giants Football team and is currently the team physician for the Purchase College Athletic Department and the Westchester Flames semi-professional soccer team. Dr. Delos also serves as a team physician for many local high schools, including Byram Hills High School, Greenwich High School, Iona Prep and Manhattanville College.

Dr. Delos earned his medical degree from Weill Medical College of Cornell University and completed his orthopaedic residency at Hospital for Special Surgery (HSS)/New York-Presbyterian Hospital. He completed a research fellowship at the HSS Laboratory for Soft Tissue Research as well as a surgical fellowship in Sports Medicine and Shoulder Surgery at HSS, where he was Chief Administrative Fellow.

Affiliations

  • Weill Medical College of Cornell University | Assistant Instructor in Orthopaedics
  • American Academy of Orthopaedic Surgeons
  • American Orthopaedic Society for Sports Medicine
  • Arthroscopy Association of North America
  • Orthopaedic Research Society
  • New York Giants | NFL Assistant Team Physician 2012–2013
  • Iona College | Assistant Team Physician 2012–2013
  • New York City Public School Athletic League Football | Team Physician 2009–2012
  • American Board of Orthopaedic Surgery
  • AOA Emerging Leaders Forum, 2012
  • AOA-OREF Resident Leadership Forum, 2011
  • AAOS/OREF/ORS Clinician-Scientist Development Program, 2011
  • Phi Beta Kappa, 2000
  • Golden Key National Honor Society, 1999
  • Team Physician, Bryam Hills High School
  • Team Physician, Greenwich High School
  • Team Physician, Iona Prep
  • Team Physician, Manhattanville College

Honors

  • Castle Connolly Top Doctor in the NY Metro area, 2021
  • Greenwich Magazine, Top Doctor in Fairfield County, 2021
  • Stamford Magazine, Top Doctor in Fairfield County, 2021
  • New Canaan/Darien Magazine, Top Doctor in Fairfield County, 2021
  • Westport Magazine, Top Doctor in Fairfield County, 2021
  • AOSSM Young Investigator Grant recipient, 2010
  • Rudin Foundation Grant recipient, 2010
  • Hellenic Medical Society Scholarship, 2002
  • George N. Papanicolaou Scholarship, 2001
5 Star Review on Healthgrades from B.H.Patient

“I had both knees replaced by Dr. Delos in June and was back to work full time in 3 weeks. By 6 weeks I was walking like a track star and nobody could tell that I ever had surgery. If you are considering a knee replacement run, don’t walk, and go see Dr. Delos!”

5 Star Review on Healthgrades from J.A. Patient

"Dr. Delos operated on my biceps as I ruptured it at the elbow. From initial consult to surgery to follow-ups, everything went fantastic. He explained everything, appointments were quick and easy and I couldn’t have been any happier. I would highly recommend him!"

5 Star Review on Healthgrades from L.BPatient

"Dr. Delos is a great doctor. He performed surgery on my shoulder after massive injuries. There was no pain, and it healed very well. He takes his time when he talks to you and answers all questions. I am very pleased with his work."

Published Research

The effect of platelet-rich fibrin matrix on rotator cuff healing: a prospective, randomized clinical study.

Rodeo SA, Delos D, Williams RJ III, Adler R PhD, MD, Pearle AD, Warren RF. The effect of platelet-rich fibrin matrix on rotator cuff healing: a prospective, randomized clinical study. AJSM 40(6): 1234-41, 2012.

Successful fusion of the proximal tibio-fibular joint with osteogenic protein-1 (OP-1) augmentation

Delos D, Rodeo SA. Successful fusion of the proximal tibio-fibular joint with osteogenic protein-1 (OP-1) augmentation. HSS Journal 2012 (in press).

Peripheral nerve injuries in sports-related surgery: presentation, evaluation and management

Maak T, Osei D, Delos D, Taylor S, Warren RF, Weiland AJ. Peripheral nerve injuries in sports-related surgery: presentation, evaluation and management. JBJS (Am) 94(16): e1211-10, 2012.

The role of fatty infiltration in the pathophysiology and outcomes of rotator cuff repairs: A review article

Chaudhury S, Dines JS, Delos D, Warren RF, Voigt C, Rodeo SA. The role of fatty infiltration in the pathophysiology and outcomes of rotator cuff repairs: A review article. Arthritis Care Res 64(1):76082, 2012.

What is Platelet-Rich Plasma?

Arnoczsky S, Rodeo SA, Delos D. What is Platelet-Rich Plasma? Op Tech Sports Med 19(3): 142-148, 2011.

Venous thrombosis after arthroscopic shoulder surgery – pacemaker leads as a possible cause

Delos D, Rodeo SA. Venous thrombosis after arthroscopic shoulder surgery – pacemaker leads as a possible cause. HSS Journal 7(3), 2011.

Platelet-rich plasma (PRP) for foot and ankle disorders in the athletic population

Delos D, Murawski C, Kennedy J, Rodeo SA. Platelet-rich plasma (PRP) for foot and ankle disorders in the athletic population. Tech Foot Ankle Surg 10(1): 11-17, 2011.

Enhancing meniscal repair through biology: platelet rich plasma (PRP) as an alternative strategy

Delos D, Rodeo SA. Enhancing meniscal repair through biology: platelet rich plasma (PRP) as an alternative strategy. Instructional Course Lectures, 60.

Multiligament knee injuries and their treatment.

Delos D, Warren RF, Marx RG. Multiligament knee injuries and their treatment. Op Tech Sports Med 18(4):219-26, 2010.

What’s New in Orthopaedic Research

Rodeo SA, Delos D, Weber AE, Ju D, Cunningham ME, Fortier LA, Maher SA. What’s New in Orthopaedic Research, JBJS 92(14):2491-501, 2010.

Meniscectomy of the sternoclavicular joint: a report of two cases

Delos D, Shindle MK, Mintz DN, Warren RF. Meniscectomy of the sternoclavicular joint: a report of two cases. JSES, e-published March 23, 2010.

Biomechanical and biologic augmentation for the treatment of massive rotator cuff tears

Nho S, Delos D, Yadav H, Pensak M, Romeo AA, Warren RF, MacGillivray JD. Biomechanical and biologic augmentation for the treatment of massive rotator cuff tears. AJSM 38(3):619-29, 2010.

The effects of RANKL inhibition on fracture healing in a mouse model of Osteogenesis Imperfecta

Delos D, Yang X, Ricciardi B, Myers ER, Bostrom MP, Camacho NP. The effects of RANKL inhibition on fracture healing in a mouse model of Osteogenesis Imperfecta. J Ortho Res 26(2):153-64, 2008.

Abnormal mineral-matrix interactions are a significant contributor to fragility in oim/oim bone

Miller E, Delos D, Baldini T, Wright TM, Camacho NP. Abnormal mineral-matrix interactions are a significant contributor to fragility in oim/oim bone. Calcif Tissue Int 81(3):206-14, 2007.

The efficacy of autologous platelet gel in pain control and blood loss in total knee arthroplasty

Gardner MJ, Demetrakopoulos D, Mooar PA. The efficacy of autologous platelet gel in pain control and blood loss in total knee arthroplasty. Int Ortho 31(3):309-13, 2007.

Hybrid locked plating of osteoporotic fractures

Gardner MJ, Griffith MH, Demetrakopoulos D, Brophy RH, Helfet DL, Lorich DG. Hybrid locked plating of osteoporotic fractures. JBJS (Am) 88(9): 1962-7, 2006.

In vivo cyclic axial compression affects bone healing in the mouse tibia

Gardner MJ, van der Meulen MCH, Demetrakopoulos D, Wright TM, Myers ER, Bostrom MP. In vivo cyclic axial compression affects bone healing in the mouse tibia. J Ortho Res 24(8):1679-86, 2006.

Malreduction of the tibiofibular syndesmosis in ankle fractures

Gardner MJ, Demetrakopoulos D, Brigss SM, Helfet DL, Lorich DG. Malreduction of the tibiofibular syndesmosis in ankle fractures. Foot Ankle Int (10):788-92, 2006.

The ability of the Lauge-Hansen classification to predict ligament injury and mechanism in ankle fractures

Gardner MJ, Demetrakopoulos D, Brigss SM, Helfet DL, Lorich DG. The ability of the Lauge-Hansen classification to predict ligament injury and mechanism in ankle fractures. An MRI study. J Ortho Tr 20(4): 267-72, 2006.

Osteoporosis and skeletal fractures.

Gardner MJ, Demetrakopoulos D, Shindle MK, Lane JM. Osteoporosis and skeletal fractures. HSS Journal 2(1): 62-69, 2006.

Prevention and treatment of osteoporotic fractures

Gardner MJ, Demetrakopoulos D, Shindle MK, Griffith MH, Lane JM. Prevention and treatment of osteoporotic fractures. Minerva Medica 96(5): 343-352, 2005.

Interventions for improving osteoporosis treatment following hip fracture: a prospective, randomized trial

Gardner MJ, Brophy RB, Demetrakopoulos D, Koob J, Hong R, Rana A, Lin JT, Lane JM. Interventions for improving osteoporosis treatment following hip fracture: a prospective, randomized trial. JBJS (Am) 87(1): 3-7, 2005.

Minimally invasive posterior approach to total hip replacement

Bostrom MP, Demetrakopoulos D, Reinhart J, Sculco TP. Minimally invasive posterior approach to total hip replacement. Curr Op Orthop 16:2-5, 2005.