Dr. Ronald Delanois


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4.8 based on 219 ratings

"Dr. Delanois was recommended to me as the best person to do a total hip replacement by another orthopedic surgeon I have known for years who is excellent. His staff is amazing and thorough in follow ups. [For] pain management, [he] is knowledgeable and very sympathetic. My hip replacement is going well with daily online checks to catch potential complications for clots or infection early. Definitely an excellent surgical team."


Ronald E. Delanois, M.D., F.A.A.O.S., is a board-certified, fellowship-trained orthopedic surgeon who has more than 20 years of experience with complex hip, knee and shoulder reconstructive surgery.


He serves as the Jerome P. Reichmister, M.D., Endowed Chairman of Orthopedics for the Rubin Institute for Advanced Orthopedics, the division director of the Center for Joint Preservation and Replacement, the director of Hip, Knee and Shoulder Surgery, and also the director of the Research Division and Research Fellowship Program.


His emphasis is on diagnostic, arthroscopic and joint preserving procedures for the hip, knee and shoulder. Dr. Delanois and his team deliver advanced orthopedic solutions to patients who suffer from a multitude of joint ailments.


He has performed thousands of arthroscopic and reconstructive procedures. He is involved with the latest cutting-edge technology that allows the patient to return to a full and active lifestyle in the shortest amount of time.

Philosophy of Care

Dr. Delanois believes in conservative management as a first line of defense whenever possible. This involves educating patients and their families on nonsurgical as well as surgical techniques available, oral medication, injections and physical therapy.


When surgery is indicated, Dr. Delanois believes in performing joint-preserving procedures first. This allows the patient a faster recovery as well as a quicker return to a normal life.

A couple walking their dog on a Fall day.


Dr. Delanois obtained his medical degree from the Uniformed Services University of the Health Sciences (USUHS). He then did his orthopedic training in the Air Force at Wilford Hall Medical Center in San Antonio, Texas. He received his fellowship training in hip and knee replacement surgery under the mentorship of Drs. Mont and Hungerford at The Johns Hopkins Medical Institutions.


  • Medical Education: Uniformed Services Univ. of the Health Sciences
  • Internship: Wilford Hall Air Force Medical Center
  • Fellowship: The Johns Hopkins Hospital
  • Residency: Wilford Hall Air Force Medical Center

Areas of Interest

Dr. Delanois’ area of experience is with complex hip, knee and shoulder reconstructive surgery. He specializes in the diagnostic, arthroscopic and joint restoration procedures for these joints.


He is particularly interested in focal cartilage loss. In the hip, he employs the technique of hip arthroscopy for the diagnosis and treatment of hip pain. In the knee, he uses techniques such as high tibial osteotomies, unicompartmental knee replacements and cartilage transplantation.


His current research interests include osteonecrosis, joint restoration techniques and the improvement of wear in hip and shoulder replacements.

More Information

Dr. Delanois currently holds an academic appointment at USUHS, Bethesda, as a clinical assistant professor of surgery. He is an active member in the Society of Military Orthopedic Surgeons. He sits on the American Academy of Orthopaedic Surgeons Political Action Committee, which represents orthopedic surgeons before members of Congress. He serves on the board of the Maryland Orthopaedic Association and on the Board of Councilors for the American Academy of Orthopaedic Surgeons.


He served 24 years in the United States Air Force; for eight years he was the division head of the Adult Reconstructive Service at the Naval Medical Center Portsmouth.


He participates as a volunteer surgeon during mission trips to Haiti to help those with orthopedic problems.


Dr. Delanois lives in Lutherville, Maryland, with his wife and their three children. He is an outdoor enthusiast and enjoys activities such as competitive cycling and aerobics. He is an avid collector of fine writing instruments and enjoys spending time with his family.


Telemedicine video visits are also available.

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Orthopedic Suite
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Dr. Delanois is interviewed in this CBS Baltimore news story on what telemedicine is, what to expect from a visit, and how telemedicine helps to meet different patients’ needs. He also explains how the Rubin Institute is now open and safe for patients to come for in-person visits and elective procedures.

Audio interviews

In this WBAL-AM “Know Your Health” radio clip, Dr. Delanois discusses anterior hip replacement surgery.

Research Articles

Dr. Delanois is well published and is a reviewer for several orthopedics journals, including The Journal of Arthroplasty, The Journal of Bone and Joint Surgery and Clinical Orthopaedics and Related Research. Click here to view his peer-reviewed research articles.

Conditions Treated

  • Arthritis
  • Avascular Necrosis (AVN)
  • Bursitis
  • Developmental Dysplasia of the Hip (DDH)
  • Dislocations
  • Femoroacetabular Impingement (FAI)
  • Fractures
  • Hip Arthritis
  • Hip Joint Infections
  • Hip Pain
  • Labral Tears
  • Ligament Tears
  • Meniscus Tears
  • Knee Arthritis
  • Knee Joint Infection
  • Knee Pain
  • Osteoporosis
  • Patellofemoral Syndrome and Arthritis
  • Rheumatoid Arthritis
  • Shoulder Arthritis
  • Shoulder Pain
  • Tendinitis
  • Tendon Tears

Treatments Performed

Surgical Procedures - Hip

Surgical Procedures - Hip


  • Anterior Hip Replacement
  • Core Decompression
  • Hip Replacement Revision (Revision THA)
  • Osteotomies
  • Partial Hip Replacement
  • Total Hip Replacement (Primary THA)


Surgical Procedures - Knee

Surgical Procedures - Knee


  • ACL Reconstruction
  • Arthroscopy
  • Cartilage Restoration
  • Knee Replacement Revision (Revision TKA)
  • Osteotomy
  • Partial Knee Replacement
  • Patellar Tendon Repair
  • Quadriceps Tendon Repair
  • Robotic Knee Replacement (Robotic TKA)
  • Total Knee Replacement (Primary TKA)


Surgical Procedures - Shoulder

Surgical Procedures - Shoulder


  • Arthroscopy
  • Reverse Shoulder Replacement
  • Rotator Cuff Repair
  • Total Shoulder Replacement (Primary TSA)