Robert Kollmorgen

Title(s)Assistant Professor, Dean's Office
SchoolSchool of Medicine
Address155 N Fresno St
Fresno CA 93701
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    Robert C. Kollmorgen D.O.
    Assistant Professor, UCSF
    Research Director, UCSF Fresno Orthopaedic Surgery

    Robert Kollmorgen, D.O., is board certified in Orthopedic Surgery and fellowship trained in Hip Preservation. He is a member of the International Society of Hip Arthroscopy and Preservation, the American Academy of Orthopaedic Surgeons and the Arthroscopy Association of North America. He is an expert in Hip arthroscopy and complete hip specialist. Treating such hip disorders as: Femoral Acetabular Impingement Syndrome (FAI), hip dysplasia, abductor and hamstring tears and arthritis. Specialty procedures include hip arthroscopy, Periacetabular Osteotomy, labral reconstruction and repair, abductor and hamstring repair and Direct Anterior Total Hip Arthroplasty.

    He earned his medical degree from Ohio University College of Osteopathic Medicine. His residency in Orthopedic Surgery was completed at Midwestern University, and he finished his fellowship in Hip Preservation at Duke University.

    Dr. Kollmorgen previously practiced as an orthopedic surgeon specializing in sports medicine and instructed as an Associate Professor at Ohio University. He also served as a Lieutenant Commander in the United States Navy.

    He was awarded the Navy and Marine Corps Commendation Medal for creating the hip preservation and hip arthroscopy program at Naval Hospital Camp Pendleton. He also twice received Fellows award for Sports Medicine Educator of the Year at Ohio University.

    Dr. Kollmorgen is dedicated to providing compassionate and effective care. He believes that excellent health begins with education and prevention and has made it his mission to enlighten patients to ways they can take greater control over their own health.

    His hobbies include fitness and spending time with family.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    1. Editorial Commentary: Post-Free Arthroscopy Reduces Complications and Pain: To Post or Not to Post? Is That Still a Question? Arthroscopy. 2021 09; 37(9):2846-2847. Kollmorgen R. PMID: 34481625.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    2. Mandatory Nicotine Cessation for Elective Orthopedic Hip Procedures Results in Reduction in Postoperative Nicotine Use. Cureus. 2020 Dec 18; 12(12):e12158. Rao BM, Moylan DD, Sochacki KR, Kollmorgen RC, Atwal L, Ellis TJ. PMID: 33489570.
      View in: PubMed   Mentions:
    3. Editorial Commentary: Patient-Reported Outcomes Measurement Information System (PROMIS) Has Decreased Disease-Specific Responsiveness More Than Legacy Outcome Measures, But PROMIS and Legacy Measures Do Correlate: You Can't Have Your Cake and Eat It Too. Arthroscopy. 2020 12; 36(12):2998-3000. Kollmorgen R. PMID: 33276887.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    4. A Novel Radiographic Finding of Intracapsular Heterotopic Ossification: A Report of Two Cases. Cureus. 2020 Nov 07; 12(11):e11372. Wilson HJ, Goodell PB, Kollmorgen RC. PMID: 33304704.
      View in: PubMed   Mentions:
    5. Editorial Commentary: Hip Hypotrophic Labrum Should Not Change Our Treatment Algorithm: Welcome to the Augmented Reality of the Hip-Preservation Zone. Arthroscopy. 2020 10; 36(10):2621-2622. Kollmorgen R. PMID: 33039037.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    6. Validation of Self-Reported Smoking Status Among Orthopedic Hip Surgery Patients. Cureus. 2020 Oct 01; 12(10):e10753. Ellis ST, Rao BM, Kohlrieser D, Kollmorgen RC, Sochacki KR. PMID: 33150105.
      View in: PubMed   Mentions:
    7. Editorial Commentary: Quantifying Patient Satisfaction After Hip Arthroscopy: I Cannot Deactivate Until You Are Satisfied With Your Care. Arthroscopy. 2020 03; 36(3):743-744. Kollmorgen R. PMID: 32139053.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    8. Pseudotumor Caused by a Retained Intra-articular Bullet: A Case Report. JBJS Case Connect. 2020 Jan-Mar; 10(1):e0209. Rohlfing G, Refaat M, Kollmorgen R. PMID: 32224674.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    9. Achieving Post-Free Distraction in Hip Arthroscopy With a Pink Pad Patient Positioning Device Using Standard Hip Distraction Tables. Arthrosc Tech. 2019 Apr; 8(4):e363-e368. Kollmorgen RC, Ellis T, Lewis BD, Harris JD. PMID: 31110937.
      View in: PubMed   Mentions: 6  
    10. Editorial Commentary: Single Versus Double-Row Abductor Tendon Repair: Is the Juice Worth the Squeeze? Arthroscopy. 2019 03; 35(3):824-825. Kollmorgen R. PMID: 30827435.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. Relationship Between PROMIS Computer Adaptive Tests and Legacy Hip Measures Among Patients Presenting to a Tertiary Care Hip Preservation Center. Am J Sports Med. 2019 03; 47(4):876-884. Kollmorgen RC, Hutyra CA, Green C, Lewis B, Olson SA, Mather RC. PMID: 30753105.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    12. Editorial Commentary: You Cannot Choose the Hip….It Chooses You!! Big Database Versus Private Database Complication Reporting. Arthroscopy. 2018 06; 34(6):2005-2006. Kollmorgen R. PMID: 29804617.
      View in: PubMed   Mentions:    Fields:    
    13. A Novel All-Inside Arthroscopic Technique for Radial-Sided Triangular Fibrocartilage Complex Tears: A Case Report and Review of Literature. Hand (N Y). 2017 09; 12(5):NP166-NP169. Edgerton MT, Kollmorgen RC. PMID: 28643521.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    14. Current Concepts in Labral Repair and Refixation: Anatomical Approach to Labral Management. Am J Orthop (Belle Mead NJ). 2017 Jan/Feb; 46(1):42-48. Kollmorgen R, Mather R. PMID: 28235112.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
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