About Dr. Paul King

Dr. King is a board certified orthopaedic surgeon, specializing in the treatment of hip and knee problems. Dr. King’s medical school and surgical training were completed at the Universities of Maryland and Pennsylvania, and Harvard Medical School. Dr. King has served as the Director of the Center for Joint Replacement at Anne Arundel Medical Center since 2009.

Dr. King graduated cum laude from both Loyola University in Maryland and the University Of Maryland, School Of Medicine. He completed an internship in general surgery and a residency in orthopaedic surgery at the Hospital of the University of Pennsylvania, where he was selected to be Chief Resident in Orthopaedic Surgery for 2000-2001. Dr. King was awarded the Deforest Willard Award for outstanding performance as a senior resident. Following graduation, he completed a fellowship in joint reconstruction surgery at Harvard Medical School, before joining the medical staff at Anne Arundel Medical Center in 2002.

Along with being board certified by the American Board of Orthopaedic Surgery, Dr. King is also a member of the American Association of Hip and Knee Surgeons. He has been the Director of the Center for Joint Replacement at Anne Arundel Medical Center since 2009, and during this time the center has consistently been the busiest center in the state of Maryland.


The AAMC Center for Joint Replacement is nationally recognized for its excellence in hip and knee replacement surgery.

Dr. King has been selected as a ‘Top Doctor’ in orthopaedic surgery by What’s Up Annapolis Magazine’s biannual survey of physicians in every edition since 2007. He has also been named in the Capital Newspaper Readers’ Choice Award for orthopaedic surgery every year since 2011. He was named a top orthopaedic surgeon by Baltimore Magazine in 2014.

Dr. King has published and presented his research on orthopaedic topics, and has been a speaker at local and national conferences. He is currently involved in a number of research projects, including the evaluation of long term outcomes after hip and knee replacement surgery, and the study of perioperative factors and processes that may improve patient results.

Dr. Paul King has extensive experience in direct anterior hip replacement and was the first surgeon to perform the procedure at Anne Arundel Medical Center. He has performed several thousand joint replacements at AAMC.

He is an avid triathlete and cyclist who has completed many endurance sport events, including the distinction of being a 3 time Ironman Triathlon finisher. He lives in Anne Arundel County with his wife and two daughters.

Dr. Paul King’s


Our team is very involved in clinical research projects to study and evaluate how to improve patient outcomes after joint replacement procedures.  My primary research interest has focused on the prevention of complications, readmissions, emergency room visits, and disparities in the care of patients undergoing total joint replacement.  It has been my goal to try to identify what surgical and patient factors may lead to an increased rate of complications, or increased use of healthcare resources.  I have researched and published on factors which may lead to readmissions, or emergency room utilization after arthroplasty procedures, as well as the financial implications of increased utilization.  I have been particularly interested in the consequences of decreasing length of stay on patients undergoing these procedures. We have specifically looked at the effect of race on length of stay and discharge disposition in patients undergoing joint arthroplasty procedures.  We are also currently analyzing the effect of comorbid psychiatric conditions or use of psychotropic medications on outcomes after arthroplasty procedures.

  1. Stone AH, MacDonald JH, Joshi MS, King PJ. Differences in Perioperative Outcomes and Complications Between African American and White Patients After Total Joint Arthroplasty. J Arthroplasty. 2019 Apr;34(4):656-662

  2. Sibia US, Weltz AS, MacDonald JH, King PJ. Insulin-Dependent Diabetes Is an Independent Risk Factor for Complications and Readmissions after Total Joint Replacements. J Surg Orthop Adv. 2018; 27(4):294-298.

  3. Sibia UA, Grover J, Turcotte J, Seanger M, England K, King J, King PJ. Decreasing Post-Anesthesia Unit to Floor Transfer Times to Facilitate Short Stay Total Joint Replacements. J Perianesth Nurs. 2018 Apr;33(2):109-115.

  4. Sibia US, King PJ, MacDonald JH. Who is Not a Candidate for a One Day Hospital-based Total Knee Arthroplasty? J Arthroplasty. 2017 Jan;32(1):16-19.


There has been much interest and controversy about the superiority of different approaches to hip replacement, and a reported increase in surgical complications during the “learning curve” period as surgeons adopt new hip replacement techniques.  These reports have generally focused on a small number of initial cases.  I have investigated surgical factors, and particularly the effect of surgical approach, on outcomes after hip replacement procedures. I have been interested in the effect of surgical approach and anesthetic techniques on the rate of patient recovery after these procedures, and on the effect of the surgeon learning curve when adopting a new approach on operative time and patient complications.

  1. Stone AH, Atkinson R, Turner TR, King PJ.  Evaluation of the learning curve when transitioning from the posterolateral to direct anterior hip arthroplasty: A consecutive series of 1000 cases.  J Arthroplasty. 2018 Aug;33(8):2530-2534.

  2. Sibai UA, MacDonald JM, King PJ.  The Impact of Surgical Technique on Patient Reported Outcome Measures and Early Complications after Total Hip Arthroplasty.  J Arthroplasty. 2017 Apr;32(4):1171-1175


I have an interest in antibiotic stewardship and have examined the impact of a patient reported penicillin allergy on the choice of perioperative antibiotics in patients undergoing elective arthroplasty procedures.  The use of cephalosporins has, in some studies, been shown to be superior to alternatives in the prevention of post-operative surgical site infections.  Patient reported penicillin allergies which may not be clinically significant, and are unlikely to cause cross reactivity with cephalosporins, may inappropriately change prescribing habits, leading to the unnecessary use of alternative antibiotics, which may be less effective in reducing SSIs.

  1. Stone AH, Kelmer G, MacDonald JH, Clance MR, King PJ. The Impact of Patient Reported Penicillin Allergy on Risk for Surgical Site Infection in Total Joint Arthroplasty. J Am Acad Orthop Surg. 2019 Feb 27. [Epub ahead of print]


View Dr. King’s disclosures here ↓

In addition to his clinical practice, Dr. Paul King is currently the medical director of the Center for Joint Replacement at Anne Arundel Medical Center. The Joint Replacement Center and Dr. King are very active in advancing the care of joint replacement patients. Dr. King is involved in several clinical research projects and educational initiatives in this role, and his affiliation with the Anne Arundel Health System Research Institute. Many of these research projects are funded by the Health System. Some projects are supported by external sources of funding or grants. The Anne Arundel Health System Research Institute currently receives researching funding for orthopaedic studies from Depuy, Smith and Nephew, Recro Pharma, and Promotus for studies in which Dr. King, or members of his research team are involved.

Dr. King’s expertise has been sought to teach courses, make educational videos, write research protocols, and design joint replacement prosthesis. If you have any questions about these activities, please ask.

Interested patients may inquire about participation in clinical trials, or the ongoing research based in the Center for Joint Replacement.