Speciality: Orthopaedics , ACL Reconstruction, Fracture care, Joint Replacement, Sports Medicine, Trauma, Foot & Ankle, Total Hip Replacement, Knee Replacement, Minimally Invasive Joint Replacement, Hand Surgery, Shoulder Replacement, Endoscopic Carpal Tunnel Release, Robotic Assisted Procedures, Minimally Invasive Techniques, Arthroscopic Rotator Cuff Repairs, Makoplasty Robotic Assisted Hip & Knee Surgery

+1 956 618 4414

315 E Palm Drive Suite B
USA - 78539.

+1 956 362 6890

505 Angelita Drive, Suite 13-15
USA - 78596.

+1 956 854 4540


I enjoy practicing all orthopaedic subspecialties particularly Joint Replacement, Sports Medicine, Trauma, Foot and Ankle and Hand Surgery. I am very comfortable in fracture care, as well as, managing complicated trauma cases. My training, years of experience and commitment to ongoing learning allow me to offer my patients up to date minimally invasive procedures such as endoscopic carpal tunnel release, fully arthroscopic rotator cuff repair, all inside ACL reconstruction, minimally invasive joint replacement, joint resurfacing, partial knee resurfacing, robotic assisted partial knee and total hip replacement (MAKOPLASTY), and total/reverse total shoulder replacement.


  • Lebanese American University (formerly known as Beirut University College)
    Beirut, Lebanon
    Biology, BS degree with Honors, 1992
  • American University of Beirut
    Beirut, Lebanon
    Human Morphology, MS degree, 1994
  • University of Texas Medical Branch
    Department of Microbiology and Immunology
    Galveston, Texas
    Microbiology, PhD, 1998 (GPA 3.9/4.0)
  • University of Texas Medical Branch
    Medical School
    Galveston, Texas
    MD with Honors, 2002


  • Research Assistant
    Dept. of Human Morphology
    American University of Beirut
  • Pre-Doctoral Fellow
    Dept. of Microbiology and Immunology
    Galveston, TX
  • Post-Doctoral Fellow
    Dept. of Microbiology and Immunology
    Galveston, TX
  • Postgraduate Training
    Baylor College of Medicine
    Department of orthopaedic Surgery
    Houston, Texas 77030
  • Orthopaedic Surgeon
    HSE Orthopaedic Surgery Clinic
    Self Employed
    Cleveland, TX.
  • Orthopaedic Surgeon
    HCA Physicians Services
    Conroe, Texas.
  • Orthpaedic Surgeon
    Laredo Physicians Group
    Laredo, Texas
  • Orthopaedic Surgeon
    Orthopedic Institute at Renaissance
    McAllen, Texas


  • Orthopaedic Trauma Association
    Residents Basic Fracture Course
    Salt Lake City, Utah.
    October 8-11,2003
  • Fundamentals of Microsurgery
    Successfully Completed (40 hours)
    Scott Department of Urology
    Baylor College of Medicine
    March 2006
  • Endoscopic Carpal Tunnel release Workshop
    MicroAire Surgical Instruments
    Baylor College of Medicine
    May 2006
  • Birmingham and Journey Deuce Training
    Smith and Nephew
    Las Vegas, NV
    December 2007
  • Kyphon Balloon Kyphoplasty
    Memphis, TN
    July 26, 2008
  • Oxford Unicompartmental Knee training
    San Francisco, CA
    October 2012
  • Elite Educational Series Trauma Symposium
    Henderson, Nevada
    June 28, 2013
  • Vanguard XP/ACL Sparing Knee
    Las Vegas, NV
    November 20, 2014
  • Makoplasty Partial Knee and Total Hip Arthroplasty
    Surgical Training Program/Certified
    Stryker Orthopaedics
    Las Vegas, NV
    July 17, 2015
  • Current Concepts in Shoulder Arthroplasty
    Primary and Reverse Total Shoulder Arthroplasty
    Las Vegas, NV
    May 19, 2017


  • While working to earn a Master degree in Human Morphology, I learned and applied a variety of immunological and histological techniques. I had the opportunity to interact with patients suffering from various autoimmune disorders and cancerous diseases since I was involved in testing for specific Human Leukocyte Antigens, as well as, immunological functions in such patients. I was also involved in an NIH funded study on Leishmania parasite conducted in Lebanon at that time. For my Masters dissertation, I examined the correlation between certain HLA markers and IDDM in the lebanese diabetic population.
  • My pre-doctoral research interests were directed to a better understanding of bacterial toxins. My research project focused specifically on exotoxin A (ETA) from Pseudomonas aeruginosa, and its contribution to the overall pathogenesis of P. aeruginosa. Applying bacteriological, immunological, and molecular biology techniques I was successful in identifying important neutralizing epitopes of ETA. Targeting such epitopes using polyclonal or monoclonal antibodies could become instrumental in developing alternative or complementary therapeutic approaches to antimicrobial therapy.
  • During my postgraduate training I worked with doctor Phillip Noble, a world known expert in the field of biomechanics in orthopaedic surgery, on better understanding the three dimensional morphological changes involving the proximal femur with aging. Using sophisticated and very specialized software, we completed a study to examine the relationship between osteoporosis and the morphology of the femur in females. The manuscript for the study was chosen as the best manuscript during the 2007 graduation ceremony and earned me the Hugh S. Tullos Award.


  • American University of Beirut Alumni, Science Sub-Committee 1992-1994
  • American Society for Microbiology 1997-2001
  • Sigma Xi Elected member 1998
  • American Medical Association 1999-2007
  • Alpha Omega Alpha Medical Honor Society 2002-Present
  • American Academy of Orthopaedic Surgery Member 2002-Present
  • Texas Medical association Member 06/2007-Present
  • Harris County Medical Society Member 06/2007-2015
  • American Academy of Orthopaedic Surgery Fellow 2011-Present
  • Webb-Zapata-Jim Hogg County Medical Society Member 01-2016-Present


  • Honors List
    Rafik Hariri Foundation
    Beirut, Lebanon, 1990
  • B.S. Degree with Honors
    Lebanese American University
    Beirut, Lebanon, 1992
  • Travel Award
    American Society for Microbiology
    98th General Meeting
    Atlanta, GA 1998
  • Academic Scholarship
    Lebanese American Association
  • Shepherd Scholarship
    The Supreme Council
    Ancient and Accepted Scottish Rite
    Of Freemasonry
  • SPAM (Student Performing At Max) Award
    UTMB, Medical School
    Galveston, TX 1998
  • Sigma Xi
    The Scientific Research Society
    Elected Associate Member
    Galveston, TX
  • Kazko Arai Memorial Award
    For Excellence in Biochemistry
    UTMB, Medical School
    Galveston, TX
  • Travel Award
    American Society for Microbiology
    Pseudomonas 99 Conference
    Maui, Hawaii. 1999
  • Paul E. Strandjord Young Investigator Award
    American Society of Clinical Laboratory Physician and Scientists
    May 2000
  • MD degree with Honors
    Class of 2002
  • Alpha Omega Alpha
    Medical Honor Society
    Elected member 2002
    Phi Kappa Phi
    Honor Society
    Elected Member 2002
  • Hugh S. Tullos Award
    Baylor College of Medicine
    Department of Orthopaedic Surgery
    Houston, Texas
    June 2007


  1. Haissam S. Elzaim. Genetic Markers Associated With Some Autoimmune Disorders: Diabetes Mellitus Type I. American University of Beirut, Beirut, Lebanon, 1994.
  2. Haissam S. El-Zaim. Generation of Neutralizing Anti-Peptide Antibodies to Pseudomonas aeruginosa Exotoxin A. The University of Texas Medical Branch at Galveston. Graduate School of Biomedical Sciences. Galveston, Texas, 1998


  1. "Genetic Markers Associated with Some Autoimmune Disorders: Diabetes Type I". Thesis Defense Presentation. Dept. of Human Morphology, American University of Beirut, Beirut, Lebanon, May 5, 1994.
  2. "Genetic Markers Associated with Some Autoimmune Disorders: Diabetes Type I". Inauguration Ceremony of "Chronic Care Center". Chronic Care Center, Beirut, Lebanon, June 1994.
  3. "Effect of Nitric Oxide on Wound Healing in an Acute Animal Model." Oral Presentation. The Wound Healing Society, Minneapolis, MN, April 27-29th, 1995.
  4. "Generation of Antibodies to a Small Region in Domain II of Pseudomonas aeruginosa ExA Which Can Neutralize its Cytotoxic Effect". Texas Branch ASM, Kimberly Gunter Hotel, San Antonio, TX., December 6, 1996
  5. "Generation of Pseudomonas aeruginosa Exotoxin-A Neutralizing Antibodies Using Synthetic Peptides Strategy". Research in Progress Seminar. Dept. of Micro. & Immuno. UTMB, Galveston, TX., October 31, 1997
  6. "Generation of Neutralizing Anti-Peptide Antibodies to Pseudomonas aeruginosa Exotoxin A. Fellows Meeting, Shriners Hospital for Children". Galveston, TX., June 1998.
  7. "Generation of Neutralizing Anti-Peptide Antibodies to Pseudomonas aeruginosa Exotoxin A. Department of Microbiology". The University of Texas Medical Branch. Galveston, TX., June 1998.

Dr. Elzaim's Hobbies

  • Tennis
  • Downhill skiing
  • Jogging
  • Biking
  • Windsurfing
  • Kayaking
  • Standup paddle boarding
  • Traveling
  • Working out