Faculty

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Lawrence Douglas Dorr, MD
Professor of Clinical Orthopaedic Surgery
Orthopaedic Surgery
HCT 1520 San Pablo Street Health Sciences Campus Los Angeles
+1 323 442 5762

Overview

Dr. Dorr is a Professor of Clinical Orthopaedic Surgery in the Department of Orthopedic Surgery at the Keck School of Medicine of USC. He is an international leader in the field of joint replacement of the hip and knee and has contributed significantly to advances in treatment options. His pioneering research has aided in the design of widely used orthopaedic implants, as well as small incisions and the use of computer navigation for total hip replacement. An international speaker and writer, Dr. Dorr has authored a book on surgical techniques and numerous journal articles. He is a founding editor of the Journal of Arthroplasty, former editor-in-chief of Techniques in Orthopaedics and serves on the editorial boards of several other prominent journals. He is a founding member and past president of the Knee Society and the American Association of Hip and Knee Surgeons and the past president of the Hip Society. He has received the Humanitarian of the Year Award from the American Academy of Orthopaedic Surgeons for founding Operation Walk, a charitable organization that provides free hip and knee replacements in the United States and abroad. Honored as one of the Best Doctors in American for the past eight years, Dr. Dorr received his medical degree from the University of Iowa Carver College of Medicine and completed his fellowship training in orthopaedics/arthritis surgery at the Hospital for Special Surgery in New York.

Awards

Operation Walk and Masters Series: 20 Year Celebration as Founder, 2016

Los Angeles Magazine: Super Doctor, 2016

Publications

Dorr LD. CORR Insights(®): Does Degenerative Lumbar Spine Disease Influence Femoroacetabular Flexion in Patients Undergoing Total Hip Arthroplasty? Clin Orthop Relat Res. 2016 Aug; 474(8):1798-801. View in: PubMed

Dorr LD. Metal-on-Metal Testing to Salvage a Device Disaster: Commentary on an article by Gulraj S. Matharu, BSc(Hons), MBChB, MRCS, MRes, et al. : "The Effectiveness of Blood Metal Ions in Identifying Patients with Unilateral Birmingham Hip Resurfacing and Corail-Pinnacle Metal-on-Metal Hip Implants at Risk of Adverse Reactions to Metal Debris". J Bone Joint Surg Am. 2016 Apr 20; 98(8):e31. View in: PubMed

Lombardi AV, Barrington JW, Berend KR, Berend ME, Dorr LD, Hamilton W, Hurst JM, Morris MJ, Scuderi GR. Outpatient Arthroplasty is Here Now. Instr Course Lect. 2016; 65:531-46. View in: PubMed

Yukizawa Y, Dorr LD, Ward JA, Wan Z. Posterior Mini-Incision With Primary Total Hip Arthroplasty: A Nine to Ten Year Follow Up Study. J Arthroplasty. 2016 Jan; 31(1):168-71. View in: PubMed

Taunton MJ, Dorr LD, Long WT, Dastane MR, Berry DJ. Early Postoperative Femur Fracture After Uncemented Collarless Primary Total Hip Arthroplasty: Characterization and Results of Treatment. J Arthroplasty. 2015 Nov; 30(11):2008-11. View in: PubMed

Kanawade V, Dorr LD, Banks SA, Zhang Z, Wan Z. Precision of robotic guided instrumentation for acetabular component positioning. J Arthroplasty. 2015 Mar; 30(3):392-7. View in: PubMed

Dorr LD. Reply to letter to the editor: Tourniquet use during cementation only during total knee arthroplasty: a randomized trial. Clin Orthop Relat Res. 2014 May; 472(5):1660-1. View in: PubMed

Tarwala R, Dorr LD, Gilbert PK, Wan Z, Long WT. Tourniquet use during cementation only during total knee arthroplasty: a randomized trial. Clin Orthop Relat Res. 2014 Jan; 472(1):169-74. View in: PubMed

Conditt MA, Bargar WL, Cobb JP, Dorr LD, Lonner JH. Current concepts in robotics for the treatment of joint disease. Adv Orthop. 2013; 2013:948360. View in: PubMed

Hozack WJ, Dorr LD, Ranawat CS. To our dear friend, Dick Rothman. J Arthroplasty. 2012 Feb; 27(2):165-6. View in: PubMed

Tarwala R, Dorr LD. Robotic assisted total hip arthroplasty using the MAKO platform. Curr Rev Musculoskelet Med. 2011 Sep; 4(3):151-6. View in: PubMed

Dorr LD, Jones RE, Padgett DE, Pagnano M, Ranawat AS, Trousdale RT. Robotic guidance in total hip arthroplasty: the shape of things to come. Orthopedics. 2011 Sep; 34(9):e652-5. View in: PubMed

Dastane M, Wan Z, Deshmane P, Long WT, Dorr LD. Primary hip arthroplasty with 28-mm Metasul articulation. J Arthroplasty. 2011 Jun; 26(4):662-4. View in: PubMed

Dorr LD, Ranawat CS, Rothman RH. The presumption of guilt: what degree of disclosure is appropriate? J Arthroplasty. 2011 Apr; 26(3):341. View in: PubMed

Dastane M, Dorr LD, Tarwala R, Wan Z. Hip offset in total hip arthroplasty: quantitative measurement with navigation. Clin Orthop Relat Res. 2011 Feb; 469(2):429-36. View in: PubMed

Sangiorgio SN, Longjohn DB, Dorr LD, Ebramzadeh E. Challenges in relating experimental hip implant fixation predictions to clinical observations. J Biomech. 2011 Jan 11; 44(2):235-43. View in: PubMed

Sangiorgio SN, Longjohn DB, Dorr LD, Ebramzadeh E. The influence of proximal stem geometry and surface finish on the fixation of a double-tapered cemented femoral stem. J Biomech. 2011 Jan 4; 44(1):22-7. View in: PubMed

Hammerberg EM, Wan Z, Dastane M, Dorr LD. Wear and range of motion of different femoral head sizes. J Arthroplasty. 2010 Sep; 25(6):839-43. View in: PubMed

Malik A, Wan Z, Jaramaz B, Bowman G, Dorr LD. A validation model for measurement of acetabular component position. J Arthroplasty. 2010 Aug; 25(5):812-9. View in: PubMed

Dorr LD, Thomas DJ, Zhu J, Dastane M, Chao L, Long WT. Outpatient total hip arthroplasty. J Arthroplasty. 2010 Jun; 25(4):501-6. View in: PubMed

Dorr LD. Regional anesthesia improves perioperative events in patients having total hip or knee replacement. J Bone Joint Surg Am. 2010 May; 92(5):1264. View in: PubMed

Zhu J, Wan Z, Dorr LD. Quantification of pelvic tilt in total hip arthroplasty. Clin Orthop Relat Res. 2010 Feb; 468(2):571-5. View in: PubMed

Long WT, Dastane M, Harris MJ, Wan Z, Dorr LD. Failure of the Durom Metasul acetabular component. Clin Orthop Relat Res. 2010 Feb; 468(2):400-5. View in: PubMed

Dorr LD, Wan Z, Malik A, Zhu J, Dastane M, Deshmane P. A comparison of surgeon estimation and computed tomographic measurement of femoral component anteversion in cementless total hip arthroplasty. J Bone Joint Surg Am. 2009 Nov; 91(11):2598-604. View in: PubMed

Dorr LD, Deshmane P. Precision surgery. Orthopedics. 2009 Sep; 32(9). View in: PubMed

Malik A, Dorr LD, Long WT. Impingement as a mechanism of dissociation of a metasul metal-on-metal liner. J Arthroplasty. 2009 Feb; 24(2):323. e13-6. View in: PubMed

Dorr LD, Malik A, Dastane M, Wan Z. Combined anteversion technique for total hip arthroplasty. Clin Orthop Relat Res. 2009 Jan; 467(1):119-27. View in: PubMed

Wan Z, Malik A, Jaramaz B, Chao L, Dorr LD. Imaging and navigation measurement of acetabular component position in THA. Clin Orthop Relat Res. 2009 Jan; 467(1):32-42. View in: PubMed

Schaffer JL, Bozic KJ, Dorr LD, Miller DA, Nepola JV. Direct-to-consumer marketing in orthopaedic surgery: boon or boondoggle? J Bone Joint Surg Am. 2008 Nov; 90(11):2534-43. View in: PubMed

Amuwa C, Dorr LD. The combined anteversion technique for acetabular component anteversion. J Arthroplasty. 2008 Oct; 23(7):1068-70. View in: PubMed

Dorr LD. Acetabular cup position: the imperative of getting it right. Orthopedics. 2008 Sep; 31(9):898-9. View in: PubMed

Dorr LD, Raya J, Long WT, Boutary M, Sirianni LE. Multimodal analgesia without parenteral narcotics for total knee arthroplasty. J Arthroplasty. 2008 Jun; 23(4):502-8. View in: PubMed

Dastane MR, Long WT, Wan Z, Chao L, Dorr LD. Metal-on-metal hip arthroplasty does equally well in osteonecrosis and osteoarthritis. Clin Orthop Relat Res. 2008 May; 466(5):1148-53. View in: PubMed

Duwelius PJ, Dorr LD. Minimally invasive total hip arthroplasty: an overview of the results. Instr Course Lect. 2008; 57:215-22. View in: PubMed

Ward SR, Jones RE, Long WT, Thomas DJ, Dorr LD. Functional recovery of muscles after minimally invasive total hip arthroplasty. Instr Course Lect. 2008; 57:249-54. View in: PubMed

Wan Z, Boutary M, Dorr LD. The influence of acetabular component position on wear in total hip arthroplasty. J Arthroplasty. 2008 Jan; 23(1):51-6. View in: PubMed

Dorr LD, Gendelman V, Maheshwari AV, Boutary M, Wan Z, Long WT. Multimodal thromboprophylaxis for total hip and knee arthroplasty based on risk assessment. J Bone Joint Surg Am. 2007 Dec; 89(12):2648-57. View in: PubMed

Dorr LD, Malik A, Wan Z, Long WT, Harris M. Precision and bias of imageless computer navigation and surgeon estimates for acetabular component position. Clin Orthop Relat Res. 2007 Dec; 465:92-9. View in: PubMed

Maheshwari AV, Malik A, Dorr LD. Impingement of the native hip joint. J Bone Joint Surg Am. 2007 Nov; 89(11):2508-18. View in: PubMed

Dorr LD, Chao L. The emotional state of the patient after total hip and knee arthroplasty. Clin Orthop Relat Res. 2007 Oct; 463:7-12. View in: PubMed

Malik A, Dorr LD. The science of minimally invasive total hip arthroplasty. Clin Orthop Relat Res. 2007 Oct; 463:74-84. View in: PubMed

Dorr LD. Minimally invasive surgery has no ugly underbelly. Orthopedics. 2007 Sep; 30(9):729, 732-3. View in: PubMed

Malik A, Maheshwari A, Dorr LD. Impingement with total hip replacement. J Bone Joint Surg Am. 2007 Aug; 89(8):1832-42. View in: PubMed

Dorr LD, Maheshwari AV, Long WT, Wan Z, Sirianni LE. Early pain relief and function after posterior minimally invasive and conventional total hip arthroplasty. A prospective, randomized, blinded study. J Bone Joint Surg Am. 2007 Jun; 89(6):1153-60. View in: PubMed

Dorr LD, Thomas D, Long WT, Polatin PB, Sirianni LE. Psychologic reasons for patients preferring minimally invasive total hip arthroplasty. Clin Orthop Relat Res. 2007 May; 458:94-100. View in: PubMed

Maheshwari AV, Boutary M, Yun AG, Sirianni LE, Dorr LD. Multimodal analgesia without routine parenteral narcotics for total hip arthroplasty. Clin Orthop Relat Res. 2006 Dec; 453:231-8. View in: PubMed

Wan Z, Boutary M, Dorr LD. Precision and limitation of measuring two-dimensional wear on clinical radiographs. Clin Orthop Relat Res. 2006 Aug; 449:267-74. View in: PubMed

Dorr LD, Ranawat CS, Sculco TA, McKaskill B, Orisek BS. Bone graft for tibial defects in total knee arthroplasty. 1986. Clin Orthop Relat Res. 2006 May; 446:4-9. View in: PubMed

Lotke PA, Callaghan JJ, Dorr LD, Engh GH, Hanssen AD, Healy WL, Lachiewicz PF, Lonner JH, Nelson C, Ranawat CS, Ritter MA, Salvati EA, Sculco TP, Thornhill TS. Oral direct thrombin inhibitor ximelagatran compared with warfarin for the prevention of venous thromboembolism after total knee arthroplasty. J Bone Joint Surg Am. 2006 May; 88(5):1163; author reply 1163-5. View in: PubMed

Long WT, Ward SR, Dorr LD, Raya J, Boutary M, Sirianni LE. Postoperative pain management following total knee arthroplasty: a randomized comparison of continuous epidural versus femoral nerve infusion. J Knee Surg. 2006 Apr; 19(2):137-43. View in: PubMed

Yun AG, Figgie M, Dorr LD, Scott RD. Hip disease in juvenile rheumatoid arthritis. Orthopedics. 2006 Mar; 29(3):233-9; quiz 240-1. View in: PubMed

Shahrdar C, Campbell P, Mirra J, Dorr LD. Painful metal-on-metal total hip arthroplasty. J Arthroplasty. 2006 Feb; 21(2):289-93. View in: PubMed

Inaba Y, Dorr LD, Wan Z, Sirianni L, Boutary M. Operative and patient care techniques for posterior mini-incision total hip arthroplasty. Clin Orthop Relat Res. 2005 Dec; 441:104-14. View in: PubMed

Harris M, Dorr LD, Wan Z, Sirianni L, Boutary M. Total hip arthroplasty with the APR stem and cup follow-up of a previous report. J Arthroplasty. 2005 Oct; 20(7):828-31. View in: PubMed

Yun AG, Dorr LD, Long WT. Periprosthetic femoral fractures associated with contralateral hip disease. J Arthroplasty. 2005 Oct; 20(7):957-9. View in: PubMed

Dorr LD, Wan Z, Shahrdar C, Sirianni L, Boutary M, Yun A. Clinical performance of a Durasul highly cross-linked polyethylene acetabular liner for total hip arthroplasty at five years. J Bone Joint Surg Am. 2005 Aug; 87(8):1816-21. View in: PubMed

Yun AG, Padgett D, Pellicci P, Dorr LD. Constrained acetabular liners: mechanisms of failure. J Arthroplasty. 2005 Jun; 20(4):536-41. View in: PubMed

Ebramzadeh E, Billi F, Sangiorgio SN, Mattes S, Schmoelz W, Dorr L. Simulation of fretting wear at orthopaedic implant interfaces. J Biomech Eng. 2005 Jun; 127(3):357-63. View in: PubMed

Callaghan JJ, Dorr LD, Engh GA, Hanssen AD, Healy WL, Lachiewicz PF, Lonner JH, Lotke PA, Ranawat CS, Ritter MA, Salvati EA, Sculco TP, Thornhill TS. Prophylaxis for thromboembolic disease: recommendations from the American College of Chest Physicians--are they appropriate for orthopaedic surgery? J Arthroplasty. 2005 Apr; 20(3):273-4. View in: PubMed

Dorr LD. Comparison of primary total hip replacements performed with a standard incision or a mini-incision. J Bone Joint Surg Am. 2005 Mar; 87(3):675; author reply 675-6. View in: PubMed

Dorr LD, Long WT. Metal-on-metal: articulations for the new millennium. Instr Course Lect. 2005; 54:177-82. View in: PubMed

Dorr LD, Hishiki Y, Wan Z, Newton D, Yun A. Development of imageless computer navigation for acetabular component position in total hip replacement. Iowa Orthop J. 2005; 25:1-9. View in: PubMed

Dorr LD, Long WT, Sirianni L, Campana M, Wan Z. The argument for the use of Metasul as an articulation surface in total hip replacement. Clin Orthop Relat Res. 2004 Dec; (429):80-5. View in: PubMed

Long WT, Dorr LD, Gendelman V. An American experience with metal-on-metal total hip arthroplasties: a 7-year follow-up study. J Arthroplasty. 2004 Dec; 19(8 Suppl 3):29-34. View in: PubMed

Dorr LD, Wan Z, Sirianni LE, Boutary M, Chandran S. Fixation and osteolysis with Metasul metal-on-metal articulation. J Arthroplasty. 2004 Dec; 19(8):951-5. View in: PubMed

Dorr LD. The appeal of the mini-incision. Orthopedics. 2004 Sep; 27(9):937-8. View in: PubMed

Sangiorgio SN, Ebramzadeh E, Longjohn DB, Dorr LD. Effects of dorsal flanges on fixation of a cemented total hip replacement femoral stem. J Bone Joint Surg Am. 2004 Apr; 86-A(4):813-20. View in: PubMed

Dorr LD. The mini-incision hip: building a ship in a bottle. Orthopedics. 2004 Feb; 27(2):192, 194. View in: PubMed

Won YY, Dorr LD, Bloebaum R, Wan Z. Assessment of bone graft substitutes in autopsy implant retrievals of the acetabulum in total hip arthroplasty. J Arthroplasty. 2004 Jan; 19(1):116-22. View in: PubMed

Won YY, Dorr LD, Wan Z. Comparison of proximal porous-coated and grit-blasted surfaces of hydroxyapatite-coated stems. J Bone Joint Surg Am. 2004 Jan; 86-A(1):124-8. View in: PubMed

Ebramzadeh E, Sangiorgio SN, Longjohn DB, Buhari CF, Dorr LD. Initial stability of cemented femoral stems as a function of surface finish, collar, and stem size. J Bone Joint Surg Am. 2004 Jan; 86-A(1):106-15. View in: PubMed

Ebramzadeh E, Sangiorgio SN, Lattuada F, Kang JS, Chiesa R, McKellop HA, Dorr LD. Accuracy of measurement of polyethylene wear with use of radiographs of total hip replacements. J Bone Joint Surg Am. 2003 Dec; 85-A(12):2378-84. View in: PubMed

Berry DJ, Berger RA, Callaghan JJ, Dorr LD, Duwelius PJ, Hartzband MA, Lieberman JR, Mears DC. Minimally invasive total hip arthroplasty. Development, early results, and a critical analysis. Presented at the Annual Meeting of the American Orthopaedic Association, Charleston, South Carolina, USA, June 14, 2003. J Bone Joint Surg Am. 2003 Nov; 85-A(11):2235-46. View in: PubMed

Dorr LD, Mallory TH, Learmonth ID, Bierbaum BE, Engh CA. Case challenges in hip surgery: what would you do? Orthopedics. 2003 Sep; 26(9):979-80. View in: PubMed

Sculco TP, Argenson JN, Dorr LD, Ranawat CS, Thornhill TS, Whiteside LA. Case challenges in knee surgery: what would you do? Orthopedics. 2003 Sep; 26(9):981-3. View in: PubMed

Kang JS, Park SR, Ebramzadeh E, Dorr LD. Measurement of polyethylene wear in total hip arthroplasty--accuracy versus ease of use. Yonsei Med J. 2003 Jun 30; 44(3):473-8. View in: PubMed

Haft GF, Heiner AD, Dorr LD, Brown TD, Callaghan JJ. A biomechanical analysis of polyethylene liner cementation into a fixed metal acetabular shell. J Bone Joint Surg Am. 2003 Jun; 85-A(6):1100-10. View in: PubMed

Dorr LD, Sirianni L. The risk of product liability: orthopaedic surgeons can be trapped. Clin Orthop Relat Res. 2003 Feb; (407):50-3. View in: PubMed

Dorr LD. Self-inflicted risks of orthopaedic surgery. Clin Orthop Relat Res. 2003 Feb; (407):11-3. View in: PubMed

Dorr LD. Contrary view: wear is not an issue. Clin Orthop Relat Res. 2002 Nov; (404):96-9. View in: PubMed

Dorr LD. Session V: Revision total knee replacement: an overview. Clin Orthop Relat Res. 2002 Nov; (404):143-4. View in: PubMed

Dorr LD. Metal-on-metal: all things bright and beautiful!--In the affirmative. Orthopedics. 2002 Sep; 25(9):931. View in: PubMed

Dorr LD, Callaghan JJ, Whiteside LA, Engh CA, Cameron HU, Mallory TH. Case challenges in hip surgery: what would you do? Orthopedics. 2002 Sep; 25(9):983-5. View in: PubMed

Heaton K, Dorr LD. Surgical release of iliopsoas tendon for groin pain after total hip arthroplasty. J Arthroplasty. 2002 Sep; 17(6):779-81. View in: PubMed

Udomkiat P, Dorr LD, Wan Z. Cementless hemispheric porous-coated sockets implanted with press-fit technique without screws: average ten-year follow-up. J Bone Joint Surg Am. 2002 Jul; 84-A(7):1195-200. View in: PubMed

Dorr LD. Fixation of the millennium: the knee. J Arthroplasty. 2002 Jun; 17(4 Suppl 1):6-8. View in: PubMed

Haft GF, Heiner AD, Callaghan JJ, Dorr LD, Wan Z, Long W, Longjohn DB, Brown TD. Polyethylene liner cementation into fixed acetabular shells. J Arthroplasty. 2002 Jun; 17(4 Suppl 1):167-70. View in: PubMed

Hanssen AD, Dorr LD, Kurosaka M, Maloney WJ, Romagnoli S, Ranawat CS. Case challenges in knee surgery: what would you do? J Arthroplasty. 2002 Jun; 17(4 Suppl 1):83-9. View in: PubMed

Dorr LD, Udomkiat P, Szenohradszky J, Chorn R, Raya J. Intraoperative monitoring for safety of bilateral total knee replacement. Clin Orthop Relat Res. 2002 Mar; (396):142-51. View in: PubMed

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