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Dr. John Xenos

Dr. John Xenos MD

Orthopedic Surgeon

Credentials of Dr. John Xenos MD


  • Medical School - Georgetown University
  • United States Military Academy, West Point (Bachelor's)

Hospital Affiliations

Languages Spoken

Board Certifications

  • American Board of Orthopaedic Surgery

Professional Memberships

  • American Academy of Orthopaedic Surgeons
  • Society of Military Orthopaedic Surgeons

Awards and Publications

  • Kevin L. Kirk, DO; Benjamin K. Potter, MD; Ronald A. Lehman, Jr., MD; John S. Xenos, MD. Effect of Distal Stem Geometry on Interface Motion in Uncemented Revision Total Hip Prostheses. The American Journal of Orthopedics. 36(10): 545-549, 2007
  • Christopher J. Chen, MD; John S. Xenos, MD; James P. McAuley, MD; Anthony Young, MSE; Charles A. Engh, Sr., MD. Second-Generation Porous-coated Cementless THA Results Demonstrate Efficacy. Clinical Orthopaedics and Related Research, 451: 121-7, October 2006
  • Radiographic Definition of Pelvic Osteolysis Following Total Hip Arthroplasty. Alexandra M. Claus, MD; C. Anderson Engh, MD; Christi J. Sychterz; John S. Xenos, MD; Karl F. Orishimo, MD; Charles A. Engh, Sr., MD. Journal of Bone and Joint Surgery, 85-A:1519-1526, 2003
  • Results of Porous-Coated Anatomic Total Hip Arthroplasty without Cement at Fifteen Years: A Concise Follow-up of a Previous Report. John A. Bojescul, MD; John S. Xenos, MD; John J. Callaghan, MD; Carlton G. Savory, MD. Journal of Bone and Joint Surgery, 85-A: 1079-1083, 2003
  • Osteoporosis and Anterior Femoral Notching in Periprosthetic Supracondylar Femur Fractures: A Biomechanical Analysis. Phillip J. Belmont, MD; Scott B. Shawen, MD; William R. Klemme, MD; John S. Xenos, MD. Journal of Bone and Joint Surgery, 85-A: 115-121, 2003
  • Meritorious Service Medal
  • Army Commendation Medal
  • Army Achievement Medal

Professional Statement

A graduate of the United States Military Academy at West Point, Dr. Xenos earned his medical degree from the Georgetown University School of Medicine in Washington, D.C. He completed his residency in orthopaedic surgery at Walter Reed Army Medical Center in Washington, D.C. He then served as the Chief of Orthopaedic Surgery at Fort Benning Georgia where he was directly involved in the treatment of the 75th Ranger Regiment as well as other infantry units. Dr Xenos followed his passion for joint replacement and completed a fellowship in adult reconstructive surgery at the Anderson Orthopaedic Research Institute in Virginia. He then returned to Walter Reed as the Director of Adult Reconstruction, where he attained the rank of Lieutenant Colonel, U.S. Army Medical Corps. Dr Xenos currently remains active in the American Board of Orthopaedic Surgery as well as other national professional organizations.

Dr Xenos’ clinical interests include hip, knee and shoulder replacement as well as arthroscopic surgery of the hip. His research interests include biomechanical testing, clinical studies in hip and knee replacement, patient activity levels after joint replacement, diagnosis and treatment outcomes of hip labral pathology and femoral acetabular impingement. Dr. Xenos has presented his research at both national and international venues. His research has also resulted in numerous publications in such journals as the Journal of Bone and Joint Surgery and has earned several awards including the prestigious Founders Award presented by the Eastern Orthopaedic Association.

Dr Xenos enjoys skiing, camping, bicycling and is an avid fly fisherman.

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10103 RidgeGate Parkway, A..., Lone Tree, CO, 80124
325 Parkside Drive, Colorado Springs, CO, 80910
2352 Meadows Blvd, #300, Castle Rock, CO, 80109
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