Donald B Longjohn, MD

Title(s)Assistant Professor of Clinical Orthopaedic Surgery
SchoolKeck School of Medicine of Usc
AddressHC2 - 1520 San Pablo Street, #2000
Health Sciences Campus
Los Angeles CA 90033
Phone+1 323 442 5860
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    Collapse Biography 
    Collapse Awards and Honors
    Los Angeles Magazine2016  - 2022Super Doctor
    Castle Connolly2016Amreica's Top Doctors

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    Dr. Longjohn is an assistant professor in the Department of Orthopaedic Surgery at the Keck School of Medicine of USC. He specializes in hip and knee replacement/revision surgery, as well as arthritis, rheumatoid arthritis, osteoarthritis and arthroscopic surgery. In addition to his membership in professional organizations such as American Association of Hip and Knee Surgeons and the Western Orthopaedic Association, Dr. Longjohn is a member of the LA County Sheriff’s Department Medical Reserve Company 206 (Office of Homeland Security) and also volunteers as a flight physician for the LA County Sheriff’s Department Air Rescue 5. Dr. Longjohn has been honored with several teaching awards. His current research focus is on clinical and biomechanical studies relating to joint replacement and arthroplasty revision techniques and materials. Dr. Longjohn did his residency in orthopaedic surgery at USC+LAC and completed a fellowship in arthritis and joint implant surgery at Rancho Los Amigos National Rehabilitation Center/Keck Hospital of USC.
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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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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Correction: Limited potential of AAV-mediated gene therapy in transducing human mesenchymal stem cells for bone repair applications. Gene Ther. 2024 Sep; 31(9-10):527. Bougioukli S, Chateau M, Morales H, Vakhshori V, Sugiyama O, Oakes D, Longjohn D, Cannon P, Lieberman JR. PMID: 39090205.
      View in: PubMed   Mentions:    Fields:    
    2. Cemented Constrained Liners Used as an Articulating Hip Spacer for the Treatment of Chronic Prosthetic Joint Infection. Arthroplast Today. 2024 Oct; 29:101422. Heckmann ND, Wang JC, Richardson MK, Biedermann BM, DiGiovanni RM, Christ AB, Longjohn DB, Oakes DA. PMID: 39224754; PMCID: PMC11367267.
      View in: PubMed   Mentions:
    3. Metal artifact reduction sequence-MRI abnormalities in asymptomatic patients with dual-mobility hip prostheses. Bone Joint J. 2024 Mar 01; 106-B(3 Supple A):89-96. Heckmann ND, Chung BC, Liu KC, Chen XT, Lovro LR, Kistler NM, White E, Christ AB, Longjohn DB, Oakes DA, Lieberman JR. PMID: 38423076.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    4. Limited Durability of Extensor Mechanism Reconstruction Following Total Knee Arthroplasty: Mesh and Allograft Show Equivalent Outcomes at Five-Year Follow-Up. J Arthroplasty. 2024 Mar; 39(3):772-777. Richardson MK, Ross RC, Kusnezov N, Vega AN, Ludington J, Longjohn DB, Oakes DA, Heckmann ND. PMID: 37776982.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Refining the Role of Routine Synovial Alpha-Defensin in Periprosthetic Joint Infection Following Total Knee Arthroplasty: An Analysis of Limitations. J Arthroplasty. 2023 12; 38(12):2691-2697. Heckmann ND, Wang JC, Liu KC, Won P, Chung BC, Mayer LW, Longjohn DB, Oakes DA, Christ AB, Lieberman JR. PMID: 37295619.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    6. Factors Associated With Failure Following Proximal Femoral Replacement for Salvage Hip Surgery for Nononcologic Indications. J Arthroplasty. 2023 11; 38(11):2429-2435.e2. Wier J, Liu KC, Piple AS, Christ AB, Longjohn DB, Oakes DA, Heckmann ND. PMID: 37209911.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    7. A double-blinded, placebo-controlled, randomized study to evaluate the efficacy of perioperative dextromethorphan compared to placebo for the treatment of postoperative pain: a study protocol. Trials. 2023 Mar 29; 24(1):238. Jones IA, Piple AS, Yan PY, Longjohn DB, Gilbert PK, Lieberman JR, Gucev GV, Oakes DA, Ratto CE, Christ AB, Heckmann ND. PMID: 36991450; PMCID: PMC10061841.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCTClinical Trials
    8. Influence of donor age and comorbidities on transduced human adipose-derived stem cell in vitro osteogenic potential. Gene Ther. 2023 04; 30(3-4):369-376. Collon K, Bell JA, Gallo MC, Chang SW, Bougioukli S, Sugiyama O, Tassey J, Hollis R, Heckmann N, Oakes DA, Longjohn DB, Evseenko D, Kohn DB, Lieberman JR. PMID: 36216880; PMCID: PMC10086075.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansAnimalsCells
    9. Outcomes of an Institutional Rapid Recovery Protocol for Total Joint Arthroplasty at a Safety Net Hospital. J Am Acad Orthop Surg Glob Res Rev. 2022 03 09; 6(3). Taylor AJ, Kay RD, Bryman JA, Tye EY, Longjohn DB, Najibi S, Runner RP. PMID: 35262511; PMCID: PMC8913136.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    10. Modern Proximal Femoral Replacement in Revision Total Hip Arthroplasty for Nononcologic Indications. J Arthroplasty. 2022 08; 37(8S):S958-S963. Heckmann ND, Nakata HL, Chung BC, Baker JR, Longjohn DB, Christ AB, Oakes DA. PMID: 35189288.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    11. The insidious risk of periprosthetic fracture in clinically functional total hip arthroplasties: A biomechanical study of willed joints. J Orthop Res. 2022 08; 40(8):1943-1952. Takamura KM, McCarty CP, Ho NC, Diehl J, Longjohn DB, Ebramzadeh E, Sangiorgio SN. PMID: 34694639.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    12. Implementation of an enhanced recovery protocol at a safety net hospital : a silver lining to COVID-19? Bone Jt Open. 2021 Oct; 2(10):871-878. Taylor AJ, Kay RD, Tye EY, Bryman JA, Longjohn D, Najibi S, Runner RP. PMID: 34669504; PMCID: PMC8558442.
      View in: PubMed   Mentions: 1  
    13. Regional Gene Therapy with Transduced Human Cells: The Influence of "Cell Dose" on Bone Repair. Tissue Eng Part A. 2021 11; 27(21-22):1422-1433. Ihn H, Kang H, Iglesias B, Sugiyama O, Tang A, Hollis R, Bougioukli S, Skorka T, Park S, Longjohn D, Oakes DA, Kohn DB, Lieberman JR. PMID: 33882718; PMCID: PMC8827114.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansAnimals
    14. Patient Perception Regarding the Safety of Elective Joint Arthroplasty Surgery During the COVID-19 Pandemic. Arthroplast Today. 2021 Oct; 11:113-121. Chen XT, Chung BC, Jones IA, Christ AB, Oakes DA, Gilbert PK, Longjohn DB, Lieberman JR, Heckmann ND. PMID: 34493982; PMCID: PMC8414990.
      View in: PubMed   Mentions: 1  
    15. Regional gene therapy for bone healing using a 3D printed scaffold in a rat femoral defect model. J Biomed Mater Res A. 2021 11; 109(11):2346-2356. Kang HP, Ihn H, Robertson DM, Chen X, Sugiyama O, Tang A, Hollis R, Skorka T, Longjohn D, Oakes D, Shah R, Kohn D, Jakus AE, Lieberman JR. PMID: 34018305.
      View in: PubMed   Mentions: 5     Fields:    Translation:Animals
    16. Anterior Total Hip Arthroplasty With Bulk Femoral Head Autograft in a Patient With Camurati-Engelmann Disease. Arthroplast Today. 2021 Apr; 8:204-210. Taylor AJ, Runner RP, Longjohn DB, Najibi S. PMID: 33937459; PMCID: PMC8076616.
      View in: PubMed   Mentions:
    17. Limited potential of AAV-mediated gene therapy in transducing human mesenchymal stem cells for bone repair applications. Gene Ther. 2021 12; 28(12):729-739. Bougioukli S, Chateau M, Morales H, Vakhshori V, Sugiyama O, Oakes D, Longjohn D, Cannon P, Lieberman JR. PMID: 32807899.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansCells
    18. Periprosthetic femoral bone loss in total hip arthroplasty: systematic analysis of the effect of stem design. Hip Int. 2017 Feb 21; 27(1):26-34. Knutsen AR, Lau N, Longjohn DB, Ebramzadeh E, Sangiorgio SN. PMID: 27515762.
      View in: PubMed   Mentions: 24     Fields:    Translation:Humans
    19. Systematic analysis of bisphosphonate intervention on periprosthetic BMD as a function of stem design. J Arthroplasty. 2014 Jun; 29(6):1292-7. Knusten AR, Ebramzadeh E, Longjohn DB, Sangiorgio SN. PMID: 24703781.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    20. Challenges in relating experimental hip implant fixation predictions to clinical observations. J Biomech. 2011 Jan 11; 44(2):235-43. Sangiorgio SN, Longjohn DB, Dorr LD, Ebramzadeh E. PMID: 21040920.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    21. The influence of proximal stem geometry and surface finish on the fixation of a double-tapered cemented femoral stem. J Biomech. 2011 Jan 04; 44(1):22-7. Sangiorgio SN, Longjohn DB, Dorr LD, Ebramzadeh E. PMID: 20828697.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    22. Simulation of extreme loads on the proximal femur for implant fixation assessment. J Appl Biomater Biomech. 2008 May-Aug; 6(2):72-80. Sangiorgio SN, Longjohn DB, Lee JL, Alexander JD, Dorr LD, Ebramzadeh E. PMID: 20740449.
      View in: PubMed   Mentions: 3     Fields:    
    23. Effects of dorsal flanges on fixation of a cemented total hip replacement femoral stem. J Bone Joint Surg Am. 2004 Apr; 86(4):813-20. Sangiorgio SN, Ebramzadeh E, Longjohn DB, Dorr LD. PMID: 15069149.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    24. Initial stability of cemented femoral stems as a function of surface finish, collar, and stem size. J Bone Joint Surg Am. 2004 Jan; 86(1):106-15. Ebramzadeh E, Sangiorgio SN, Longjohn DB, Buhari CF, Dorr LD. PMID: 14711952.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    25. Effects of total hip arthroplasty cemented femoral stem surface finish, collar and cement thickness on load transfer to the femur. J Appl Biomater Biomech. 2003 Jan-Apr; 1(1):76-83. Ebramzadeh E, Sangiorgio SN, Longjohn DB, Buhari CF, Morrison BJ, Dorr LD. PMID: 20803475.
      View in: PubMed   Mentions: 1     Fields:    
    26. Polyethylene liner cementation into fixed acetabular shells. J Arthroplasty. 2002 Jun; 17(4 Suppl 1):167-70. Haft GF, Heiner AD, Callaghan JJ, Dorr LD, Wan Z, Long W, Longjohn DB, Brown TD. PMID: 12068431.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    27. Technical factors for success with metal ring acetabular reconstruction. J Arthroplasty. 2001 Dec; 16(8):961-9. Udomkiat P, Dorr LD, Won YY, Longjohn D, Wan Z. PMID: 11740749.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    28. Radiographic comparison of diaphyseal grit blasted with smooth surface stems by matched pair analysis. Clin Orthop Relat Res. 2000 Dec; (381):156-67. Min B, Longjohn DB, Dorr LD, Wan Z. PMID: 11127652.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    29. Total hip arthroplasty with use of the Metasul metal-on-metal articulation. Four to seven-year results. J Bone Joint Surg Am. 2000 Jun; 82(6):789-98. Dorr LD, Wan Z, Longjohn DB, Dubois B, Murken R. PMID: 10859098.
      View in: PubMed   Mentions: 28     Fields:    Translation:Humans
    30. Blood management challenges in revision hip arthroplasty. Orthopedics. 1999 Jan; 22(1 Suppl):s148-50. Longjohn DB, Dorr LD, McPherson EJ. PMID: 9927117.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    31. Soft tissue balance of the hip. J Arthroplasty. 1998 Jan; 13(1):97-100. Longjohn D, Dorr LD. PMID: 9493545.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    32. Acute hematogenous osteomyelitis of the epiphysis. Clin Orthop Relat Res. 1995 Jul; (316):227-34. Longjohn DB, Zionts LE, Stott NS. PMID: 7634711.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
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