Dr. Gregory James Loren

Gregory James Loren, M.D

Education

  • University of California, Irvine
    School of Biological Sciences
    B.S., Summa cum Laude, 1987
    Phi Beta Kappa National Honor Society
    Alpha Epsilon Delta Honor Society
  • University of California, Los Angeles
    School of Medicine
    M.D., Honors in Surgery, 1991
    Alpha Omega Alpha Honor Medical Society
  • University of California, San Diego
    Department of Orthopaedics
    Intern, Surgery, 1991-1992
    Fellow, Orthopaedic Research, 1992-1993
    Resident, Orthopaedic Surgery, 1993-1997
    Chief Resident, Orthopaedic Surgery, 1996-1997
  • Southern California Orthopedic Institute
    Fellow, Sports Medicine and Arthroscopy, 1997-1998

Academic Title

  • University of California, San Diego
    Department of Orthopaedics
    Clinical Instructor, 1999-Present

Certification

  • American Board of Orthopaedic Surgery
    Certified, 2000
    Recertified, 2009
  • American Board of Independent Medical Examiners
    Certified, 2012
  • National Board of Medical Examiners
    Diplomate, 1992

Licensure

  • The Medical Board of California
    Physician and Surgeon, 1992-Present

Appointments

Administrative

  • Scripps Encinitas Surgery Center
    Governing Board, 2009-Present
  • Scripps Memorial Hospital, Encinitas
    Chief, Orthopaedic Surgery, 1998-1999
    Medical Director, Ambulatory Surgery, 2001-2005
    Infection Control Committee, 2001-2003
  • UC San Diego, Medical Center
    Infection Control Committee, 1996-1997

Academic

  • UC San Diego, School of Medicine
    Department of Orthopaedics
    Clinical Instructor, 1999-Present
    Resident Selection Committee, 1997
  • UCLA, School of Medicine
    Committee on Undergraduate Education, 1989-1991
    Admissions Committee, 1988-1989
    Virtual Advisor, 2011-Present
  • University of California, Irvine
    Advisory Committee on Intercollegiate Athletics, 1986-1987

Corporate

  • Biomet Sports Medicine
    Consultant, Product Development, 2011-Present
  • Ceterix Orthopaedics
    Consultant, Product Development, 2014-Present

Community

  • California State University, San Marcos
    Orthopaedic Consultant, Head Team Physician, 1998-Present
    Trust Foundation Board Member, 1998-2008
  • Los Angeles Valley College
    Orthopaedic Consultant, Team Physician, 1997-1998
  • La Costa Canyon High School
    Orthopaedic Consultant, Team Physician, 2003-Present
  • Carlsbad High School
    Orthopaedic Consultant, Team Physician, 1998-2003
  • St. Francis High School
    Orthopaedic Consultant, Team Physician, 1997-1998
  • LFL San Diego Seduction
    Head Team Physician, 2010
  • Acura Classic, Sony Ericsson WTA Tour, U.S. Open Series
    Chief Tournament Physician, 2007
  • National Surf League-The Game
    League Physician, 2005
  • US National Synchronized Team Skating Championship
    Event Physician, 2004
  • Imperial Beach Duathlon/Triathlon
    Event Physician, 2004
  • Boost Mobile Pro of Surf at Lower Trestles
    Event Physician, 2004
  • Rob Machado Surf Classic
    Event Physician, 2004
  • Swami’s Cardiff Surf Classic
    Event Physician, 2004
  • Silver Strand Half-Marathon
    Event Physician, 2003
  • Suzuki Rock N' Roll Marathon
    Sports Medicine Team Captain, 1999
  • City of Newport Beach
    Ocean Lifeguard, 1986-1987

Affiliations

  • Scripps Memorial Hospital, Encinitas, 1998-Present
  • Scripps Encinitas Surgery Center, Encinitas, 2008-Present

Associations

  • American Academy of Orthopaedic Surgery
    Fellow, 2000-Present
  • Arthroscopy Association of North America
    Fellow, 1999-Present
  • American Orthopaedic Society for Sports Medicine
    Fellow, 1999-Present
  • San Diego County Medical Society, 1998-Present
  • Scripps Ximed Medical Associates, 1998-Present
  • Western Orthopaedic Association, 1999-Present
  • California Medical Association, 1998-Present
  • California Orthopaedic Association, 1999-Present
  • LA County Medical Association, 1988-1990
    Committee on Sports Medicine, 1988-1989

Awards

  • UCLA, School of Medicine
    • Alpha Omega Alpha Honor Medical Society, 1990
    • UC Regents' Health Science Scholar, 1987-1991
  • Massachusetts General Hospital
    • Pinkney Scholar, Orthopaedic Research, 1989
  • University of California, Irvine
    • UC Regents' Scholar, 1983-1987
    • Chancellor's Club Scholar, 1983-1987
    • Phi Beta Kappa Mu Chapter Scholar, 1985-1986
    • Phi Delta Theta Scholarship Merit Award, 1985-1986
    • Aldrich Senior Merit Scholar, 1986-1987
    • UCI Intercollegiate Water Polo NCAA Division I, 1983-1984
    • UCI Intercollegiate Swimming NCAA Division I, 1983-1987
      Varsity Letter, 1983-1987
    • PCAA Scholar-Athlete Award, 1983-1987
  • National Merit Scholar, Finalist, 1983
  • San Diego Magazine Top Physician, 2004
  • International Association of Orthopedic Surgeons Top Doctor, 2010
  • Healthgrades Recognized Doctor Honor Roll

Vitals.com

  • Top 10 Doctor - Encinitas, CA - Orthopaedic Surgeon, 2014
  • Compassionate Doctor Award - 5 Year Honoree, 2013-2014
  • Compassionate Doctor Recognition, 2009-2014
  • On-Time Physician Award, 2009, 2014-2015
  • Patients' Choice Award, 2008-2015
  • Patients’ Choice 5th Anniversary Award, 2012-15
  • Consumers’ Research Council of America America’s Top Orthopedists, 2012 Top Surgeon, 2006

Publications

Textbook Chapters

  1. Loren, GJ and Meals, RA: "The Ultimate Mystery: Osteochondritis Dissecans." In Meals, RA: One Hundred Orthopaedic Conditions Every Doctor Should Understand. Louis, Quality Medical Publishing, 1992.
  2. Loren, GJ and Ferkel, RD: "Arthroscopic Strategies in Fracture Management of the Ankle.” In Chow, JC: Advanced Arthroscopy, New York, Springer-Verlag, 2001.
  3. Loren, GJ and Meals, RA: "The Ultimate Mystery: Osteochondritis Dissecans." In Meals, RA: One Hundred Orthopaedic Conditions Every Doctor Should Understand, 2nd edition, 2006.

Journal Articles

  1. Shapiro MS, Kabo JM, Mitchell PW, Loren G, and Tsenter M: Ankle sprain prophylaxis: An analysis of the stabilizing effects of braces and tape. American Journal of Sports Medicine, 22(1):78-82, 1993.
  2. Kabo JM, Gebhard JS, Loren GJ, and Amstutz HC: In vivo wear of polyethylene acetabular components. Journal of Bone and Joint Surgery, 75-B: 254-8, 1993.
  3. Rosen G, Loren GJ, Brien EW, Ramana L, Waxman A, Lowenbraun S, Eckardt JJ, Eilber F, Menendez L, and Mirra JM: Serial thallium-201 scintigraphy in osteosarcoma: Correlation with tumor necrosis following preoperative chemotherapy. Clinical Orthopedics and Related Research, 293:302-6, 1993.
  4. Lieber RL, Loren GJ, and Friden J: In vivo measurement of human wrist extensor muscle sarcomere length changes. Journal of Neurophysiology, 71(3):874-81, 1994.
  5. Loren GJ and Lieber RL: Tendon biomechanical properties enhance human wrist muscle specialization. Journal of Biomechanics, 28(7):791-9, 1995.
  6. Loren GJ, Shoemaker SC, Burkholder TJ, Jacobson MD, Friden J, and Lieber RL: Human wrist motors: Biomechanical design and application to tendon transfers. Journal of Biomechanics, 29(3):331-42, 1996.
  7. Loren GJ: Pain and joint immobility following Colles' fracture. Journal of Musculoskeletal Medicine, 13(6):62-3, 1996.
  8. Loren GJ, Karpinski NC, and Mubarak SJ: Clinical implications of clubfoot histopathology. Journal of Pediatric Orthopedics, 18:765-9, 1998.
  9. Loren GJ, Mohler RL, and Pedowitz RA: Bilateral compartment syndrome of the leg complicating tetanus infection. Orthopaedics, 24(10):997-9, 2001.
  10. Loren GJ and Ferkel RD: Arthroscopic assessment of occult intraarticular injury in acute ankle fractures. Arthroscopy, 53(1):43-50, 2003.
  11. 11 Ward SR, Loren GJ, Lundberg S, and Lieber RL: High Stiffness of Digital Flexor Tendons is Suited for Precise Finger Positional Control. Journal of Neurophysiology, 96:2815-2818, 2006.

Abstracts

  1. Kabo JM, Gebhard JS, Loren GJ, Amstutz HC: In vivo wear of UHMWPE acetabular cups. Transactions of the Combined Meeting of the Orthopaedic Research Societies of USA, Japan and Canada, 1:192, 1991.
  2. Shapiro MS, Kabo JM, Mitchell PW, Loren GJ, and Tsenter M: The effectiveness of prophylactic bracing and tape in resisting ankle inversion. Transactions of the Orthopaedic Research Society, 17:487, 1992.
  3. Jacobson MD, Loren GJ, Yeatman P, Sokoloff B, and Lieber RL: Relationship between moment arms and muscle properties during wrist joint rotation. Transactions of the Orthopaedic Research Society, 18:318, 1993.
  4. Loren GJ and Lieber RL: Tendon biomechanical properties enhance human wrist muscle specialization. Transactions of the Orthopaedic Research Society, 19:691, 1994.
  5. Loren GJ, Shoemaker SC, Burkholder TJ, Jacobson MD, Friden J, and Lieber RL: Biomechanical determinants of human wrist strength. Transactions of the Orthopaedic Research Society, 20:20, 1995.
  6. Burkholder TJ, Loren GJ, Shoemaker SC, Jacobson MD, Friden J, and Lieber RL: Biomechanical determinants of wrist torque. Medicine and Science in Sports and Exercise, 27:S159, 1995.
  7. Mubarak SJ, Loren GJ, and Karpinski N: Clinical implications of clubfoot histopathology. Pediatric Orthopaedic Society of North America, 60-61, 1998.
  8. Loren GJ, Snyder SJ, Karzel RP, and Wichman MT: Extended success of arthroscopic capsular plication for glenohumeral instability. Arthroscopy Association of North America, 128, 1999.
  9. Loren GJ and Ferkel RD: Arthroscopic assessment of occult intra-articular injury in acute ankle fractures. International Federation of Foot and Ankle Societies, 2002.
  10. Whitehurst JB, Snyder SJ, Karzel RP, Loren GJ: Arthroscopic pan-capsular plication for glenohumeral multidirectional instability. Arthroscopy Association of North America, 2003.

Video

  1. Snyder SJ and Loren GJ: Partial articular supraspinatus tendon avulsion: The PASTA lesion. A description of the injury and technique of arthroscopic repair. Southern California Orthopedic Institute, Van Nuys, June 1998.

Popular Media

  1. "Modified exercise plan can aid those with arthritis," by E'Louise Ondash, North County Times, 22 February, 2003.
  2. Bone Putty, narrated by Peggy Pico RN, KNBC 7/39, San Diego, June, 2004.
  3. "A booming business: Encinitas has slew of health care facilities in the pipeline," by Adam Kaye, North County Times, 22 February, 2007.
  4. "Foundation offers medical safety net," by William Finn Bennett, North County Times, 11 June 2007.
  5. Sports Injuries, interview with Meg Banta, KPRI 102.1 FM, San Diego, 19 October, 2008.
  6. Loren MD, Gregory James. "Reflex Sympathetic Dystrophy." ModernMedicine, 14 September, 2005.

Presentations

International

  1. Loren GJ, Snyder SJ, Karzel RP, and Wichman MT: Extended success of arthroscopic capsular plication for glenohumeral instability. Arthroscopy Association of North America, Vancouver, British Columbia, Canada, April 1999.
  2. Loren GJ: Arthroscopic strategies in reduction and fixation of ankle fractures. IX International Congress of Arthroscopy and Sports Medicine, Buenos Aires, Argentina, June 2006.
  3. Loren GJ: Arthroscopic assessment of occult intraarticular injury in acute ankle fractures. IX International Congress of Arthroscopy and Sports Medicine, Buenos Aires, Argentina, June 2006.
  4. Loren GJ: Ankle Arthroscopy: Live surgical demonstration of anatomy and techniques. IX International Congress of Arthroscopy and Sports Medicine, Buenos Aires, Argentina, June 2006

National

  1. Jacobson MD, Loren GJ, Yeatman P, Sokoloff B, and Lieber RL: Relationship between moment arms and muscle properties during wrist joint rotation. Orthopaedic Research Society, San Francisco, February 1993.
  2. Loren GJ and Lieber RL: Tendon biomechanical properties enhance wrist muscle specialization. Orthopaedic Research Society, New Orleans, February 1994.
  3. Loren GJ, Shoemaker SC, Burkholder TJ, Jacobson MD, Friden J, and Lieber RL: Human wrist motors: Biomechanical design and implications in tendon transfer. Orthopaedic Research Society, Orlando, February 1995.
  4. Laboratory Instructor: Shoulder Arthroscopy and Arthroplasty. 15th Annual
    Meeting, San Diego, June 1998.
  5. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 16th Annual
    Meeting, San Diego, June 1999.
  6. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 17th Annual
    Meeting, San Diego, June 2000.
  7. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 18th
    Annual Meeting, San Diego, June 2001.
  8. Instructor: Updates in Shoulder Surgery. Arthrex, Inc., Los Angeles, June 2001.
  9. Instructor: Knee Arthroscopy and Instrumentation Master Class. Atlantech, Inc. Washington, DC, April 2002.
  10. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 19th Annual
    Meeting, San Diego, June 2002.
  11. Laboratory Instructor: Arthroscopy Association of North America, 21st Fall
    Course. Ankle Arthroscopy, Palm Desert, November 2002.
  12. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 20th Annual
    Meeting, San Diego, June 2003.
  13. Laboratory Instructor: Arthroscopy Association of North America, 22nd Fall
    Course. Ankle Arthroscopy, New Orleans, November 2003.
  14. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 21st Annual
    Meeting, San Diego, July 2004.
  15. Laboratory Instructor: Arthroscopy Association of North America 23rd Annual Fall
    Course. Shoulder Arthroscopy, Palm Desert, December 2004.
  16. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 22nd Annual
    Meeting, San Diego, June 2005.
  17. Instructor: Master’s Course in Shoulder Surgery. Arthrex, Inc., Los Angeles, November 2005.
  18. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 23rd Annual
    Meeting, San Diego, June 2006.
  19. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 24th Annual
    Meeting, San Diego, June 2007.
  20. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 25th Annual
    Meeting, San Diego, June 2008.
  21. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 26th Annual
    Meeting, San Diego, June 2009.
  22. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 27th Annual
    Meeting, San Diego, June 2010.
  23. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 28th Annual
    Meeting, San Diego, June 2011.
  24. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 29th Annual
    Meeting, San Diego, June 2012.
  25. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 30th Annual
    Meeting, San Diego, June 2013.
  26. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 31 st Annual
    Meeting, San Diego, June 2014.
  27. Faculty: San Diego Shoulder Arthroscopy, Arthroplasty, Fractures. 32nd Annual
    Meeting, San Diego, June 2015.

Regional

  1. Loren GJ and Lieber RL: The behavior of tendons of the human wrist under
    physiological loads. UCSD Orthopaedic Grand Rounds, San Diego, June 1993.
  2. Loren GJ, Shoemaker SC, Burkholder TJ, Jacobson MD, Friden J, and Lieber RL:
    Influences of human wrist motor design on joint torque. UCSD Orthopaedic
    Grand Rounds, San Diego, June 1994.
  3. Loren GJ: Chondral resurfacing: Clinical options and outcomes in articular lesions of
    the knee. UCSD Orthopaedic Grand Rounds, San Diego, February 1996.
  4. Loren GJ and Mubarak SJ: Clinical implications of muscle histopathology in idiopathic
    congenital equinovarus. Children's Hospital and Health Center, San Diego, March 1996.
  5. Loren GJ: Primary evaluation of the popliteal cyst. VA Urgent Care Symposium,
    La Jolla, September 1996.
  6. Loren GJ: Cervical spine injuries in sports. UCSD Surgery Grand Rounds, La Jolla,
    October 1996.
  7. Loren GJ: Surgical neck fractures of the proximal humerus: Clinical considerations and
    management options. UCSD Orthopaedic Grand Rounds, San Diego,
    January 1997.
  8. Loren GJ: Intra-articular dislocation of the patella. UCSD Orthopaedic Grand Rounds, San Diego, May 1997.
  9. Loren GJ: Acute post-obstructive pulmonary edema in orthopaedic surgery. UCSD Orthopaedic Grand Rounds,
    San Diego, May 1997.
  10. Loren GJ: Musculoskeletal complications of tetanus infection. UCSD
    Orthopaedic Grand Rounds, San Diego, May 1997.
  11. Snyder SJ and Loren GJ: Partial articular supraspinatus tendon avulsion: The PASTA
    lesion. A description of the injury and technique of arthroscopic repair. Southern California Orthopedic Institute, Van Nuys, June 1998.
  12. Loren GJ and Ferkel RD: Arthroscopic assessment of occult intra-articular injury in
    acute ankle fractures. Southern California Orthopedic Institute, Van Nuys, June 1998.
  13. Loren GJ, Snyder SJ, Karzel RP, and Wichman MT: Extended success of arthroscopic capsular plication for glenohumeral instability. Southern California Orthopedic Institute, Van Nuys, June 1998.
  14. Loren, GJ: CME Trauma. Proximal Humerus Fractures. UCSD Department of Orthopaedics, San Diego, September 1998.
  15. Loren, GJ: CME Sports Medicine, Knee & Shoulder. Arthroscopy for arthrosis and Management of Osteochondral Injury. UCSD Department of Orthopaedics, San Diego, June 1999.
  16. Loren, GJ: CME Sports Medicine, Knee & Shoulder. Shoulder Arthritis and Arthroplasty. UCSD Department of Orthopaedics, San Diego, September 1999.
  17. Loren, GJ: CME Sports Medicine, Knee & Shoulder. Posterolateral Instability of the Knee. UCSD Department of Orthopaedics, San Diego, April 2000.
  18. Loren, GJ: CME Sports Medicine, Knee & Shoulder. Arthroscopy for Arthrosis and Management of Osteochondral Injury. UCSD Department of Orthopaedics, San Diego, December 2000.
  19. Laboratory Instructor: Smith Nephew Dyonics/Orthopaedic Biosystems Limited. Operative Shoulder Arthroscopy, Carlsbad, January 2001.

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