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  • Knee Arthroscopy

    Knee Arthroscopy is a common surgical procedure performed using an arthroscope, a viewing instrument, to look into the knee joint to diagnose or treat a knee problem. It is a relatively safe procedure and a majority of the patient’s discharge from the hospital on the same day of surgery.

  • Arthroscopic ACL Reconstruction

    Anterior cruciate ligament (ACL) reconstruction is surgery to reconstruct the torn ligament of the knee with a tissue graft. The procedure is performed under general anesthesia. Your surgeon will make two small incisions around your knee. An arthroscope, small video camera, is inserted through one incision to see the inside of the knee joint.

  • Arthroscopic Treatment of
    Patella Instability

    Patellar (knee cap) instability results from one or more dislocations or partial dislocations (subluxations). Patella is the small piece of bone in front of the knee that slides up and down the femoral groove (groove in the femur bone) during bending and stretching movements.

  • Arthroscopic Cartilage &
    Meniscus Repair

    Meniscus is the C-shaped two pieces of cartilage located between thighbone and shin bone that act as shock absorbers and cushion the joints. Meniscal tear may be developed by people of all ages and is more common in individuals who play contact sports.

Thomas Youm, MD, FACSBoard-Certified Orthopaedic Surgeon

Thomas Youm, MD, FACS

Dr. Thomas Youm is a Board-Certified Orthopaedic Surgeon who specializes in the treatment of athletic injuries and performs arthroscopic and reconstructive surgery of the shoulder, knee, and hip. He has a special interest in joint preservation surgery for the active patient. He performs cutting-edge procedures such as robot-assisted unicompartmental arthroplasty of the knee, bicompartmental arthroplasty of the knee, total knee replacement using custom block technology, shoulder resurfacing arthroplasty, reverse total shoulder arthroplasty, hip resurfacing arthroplasty, and hip arthroscopy for labral tears and femoral acetabular impingement (FAI). He is also certified in cartilage replacement surgery for the treatment of cartilage lesions of the knee.

A native of Long Island, New York, Dr. Youm graduated cum laude from Yale University. He attended New York University Medical School where he was elected to the AOA honors society. He completed his orthopaedic residency at NYU Hospital for Joint Diseases. While in residency, Dr. Youm completed specialized training in orthopaedic trauma surgery at Seattle’s Harborview Hospital, one of the busiest and most respected trauma centers in the country.

After residency, Dr. Youm went on to complete a Sports Medicine Fellowship at the prestigious Kerlan-Jobe Orthopaedic Clinic in Los Angeles, California. During his fellowship, he participated in the orthopaedic care of the Los Angeles Lakers, Dodgers, Avengers, Sparks, Galaxy, and USC Football teams. He was also selected to be the physician for the Los Angeles Dodgers Dominican Republic team in the spring of 2005.

Dr. Youm has published over 18 articles and has presented at numerous national meetings on the topics of total joint replacement surgery and orthopaedic sports medicine. He is a Clinical Assistant Professor at the NYU School of Medicine where he teaches both medical students and orthopaedic residents. He is also a member of the Sports Medicine Department at NYU Hospital for Joint Diseases. Dr. Youm staffs the Sports Medicine Clinic at the Manhattan VA Hospital and the Adult Reconstructive Surgery Clinic at NYU Hospital for Joint Diseases. He is a faculty member of the Joint Replacement Center and the Hip Center at the NYU Hospital for Joint Diseases.

Dr. Youm is a member of the American Academy of Orthopaedic Surgeons, American Orthopaedic Society for Sports Medicine, and the Arthroscopy Association of North America.

Undergraduate Degree

  • Yale University, New Haven, CT

Medical Degree

  • New York University School of Medicine, New York, NY

General Surgery Internship

  • New York University Medical Center, New York, NY

Orthopaedic Surgery Residency

  • Hospital for Joint Diseases, New York, NY

Sports Medicine Fellowship

  • Kerlan-Jobe Orthopaedic Clinic, Los Angeles, CA

Academic Appointment

  • Clinical Assistant Professor, New York University School of Medicine

Professional Affiliations

  • American Academy of Orthopaedic Surgeons
  • American College of Surgeons
  • Arthroscopy Association of North America
  • American Orthopaedic Society for Sports Medicine
  • Medical Society County of New York
  • Korean American Medical Practitioners of NY (KAMPANY)

Hospital Affiliations

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Thomas Youm, MD, FACS

55 East 86th St, 1A
New York
NY 10028

Fax: (212) 410-3338



Eric Behrens

Eric BehrensPhysicians Assistant

Physician Assistant Eric Behrens is a native of New York City and has lived here all his life. He graduated from Dowling College in 1992 with a B.S. in Aeronautics. In 1997 he graduated with honors from St. John’s University with a B.S. in Physician Assistant.

Since he graduated, he has worked full time as a Physician Assistant in the field of family medicine and internal medicine. PA Behrens is board certified and keeps his certification current by attending seminars and earning CME credits. He is an active member of the American Academy of Physician Assstants.

Eric Behrens decided to pursue his passion for the orthopaedic specialty, and in January 2013, he joined Dr. Thomas Youm and RYC Orthopaedics.

Credibility Logos

  •  American Academy of Orthopaedic Surgeons
  • International Society for Hip Arthroscopy
  • RYC Orthopaedics
  • American Orthopaedic Society for Sports Medicine
  • The Arthroscopy Association of North America