Dr. Francois D. Lalonde, Orthopedic Surgery

As a leader in orthopaedic surgery, Dr. Lalonde is committed to CHOC continuing efforts to provide the most thorough, timely access to surgical care for children in Orange County and beyond.

Recognized internationally as an expert in pediatric orthopaedics, Dr. Lalonde is one of 10 orthopaedic surgeons selected across the United States to participate in the American Academy of Orthopaedic Surgeons Leadership Fellow Program and has been appointed to the board of the California Orthopaedic Association. He serves on the CalOptima Peer Review and Credentialing Committee and has been selected among Orange County’s top doctors. Dr. Lalonde consistently receives the Orange County Medical Association Physician of Excellence award.

Dedicated to clinical excellence, Dr. Lalonde is board certified in orthopaedic surgery. He received both his medical degree and his master’s degree in medical education at the University of Toronto. He completed his internship in pediatrics at the Montreal Children’s Hospital and his residency in orthopaedic surgery at the University of Ottawa.

“Working with my colleagues and CHOC’s administration, we are focused on continually seeking out the latest in emerging technologies that will allow us to provide our patients with the most accurate diagnoses and state-of-the-art treatments. This is an exciting time to be part of a premier facility like CHOC, and I am proud to be working with the incredible specialty teams innovating tomorrow’s care today.” —Dr. Lalonde


CHOC Clinic
1201 W. La Veta Ave. Building: CHOC Clinic
Orange, CA 92868
phone: 888-770-2462
fax: 855-246-2329

Adult and Pediatric Orthopaedic Specialists
1310 West Stewart Drive, #508
Orange, CA 92868
phone: 714-633-2111
fax: 714-633-5615

Adult and Pediatric Orthopaedic Specialists
25982 Pala Drive, #230
Mission Viejo, CA 92691
phone: 949-600-8800
fax: 949-600-8813


  • Medical School
    University of Toronto School of Medicine, Toronto, Ontario, Canada
  • Orthopedic Surgery Residency
    University of Ottowa, Ottawa, Ontario, Canada
  • Pediatric Internship
    Montreal Children’s Hospital/McGill University, Montreal, Quebec, Canada
  • Pediatric Orthopedic Surgery Fellowship
    Children’s Hospital of Eastern Ontario/University of Ottawa, Ontario, Canada
  • Pediatric Orthopedic Surgery Fellowship
    San Diego Children’s Hospital and Health Center/University of California San Diego

Administrative Appointments

  • Secretary and Treasurer, Medical Staff, CHOC

Honors and Awards

  • Physician of Excellence, Orange County Medical Association

Professional Organizations

  • American Academy of Cerebral Palsy and Developmental Medicine
  • American Medical Association
  • California Orthopaedic Association
  • Canadian Orthopaedic Association
  • Fellowship – American Academy of Orthopaedic Surgeons
  • Orange County Medical Association
  • Pediatric Orthopedic Society of North America (POSNA)
  • Royal College of Surgeons of Canada (Orthopaedic Surgery)
  • Western Orthopedic Association (WOA)

Our orthopedic surgeons commonly treat:

  • Francois D Lalonde MD
    • Appointments:
    • Office: 714-633-2111
    • Specialty: Orthopedic Surgery
    • Board Certified: Orthopedic Surgery
    • Additional Languages: French
    • On Staff at: CHOC Hospital in Orange and CHOC at Mission Hospital


Dr. Francois Lalonde - SCFE

When a Teen Has Slipped Capital Femoral Epiphysis (SCFE)

Orthopaedic surgeon Dr. Francois Lalonde explains slipped capital femoral epiphysis and the minor procedure used to correct the condition.

Dr. Francois Lalonde - Legg-Calvé-Perthes Disease

When a Child Has Legg-Calvé-Perthes Disease

Orthopaedic surgeon Dr. Francois Lalonde explains Legg-Calvé-Perthes disease and how it can repair itself if a child limits walking and weight-bearing.

Dr. Francois Lalonde - hip dysplasia in teens

When an Adolescent Has Hip Dysplasia

Orthopaedic surgeon Dr. Francois Lalonde explains hip dysplasia in teens and adolescents and the use of surgery to relieve pain and prevent premature arthritis.

Dr. Francois Lalonde - hip dysplasia in babies

When a Baby Has Hip Dysplasia

Orthopaedic surgeon Dr. Francois Lalonde explains hip dysplasia and dislocation in babies and the types of harnesses, casts and procedures used depending on the child's age.

Dr. Francois Lalonde - hip exams

Hip Exam

In this video Dr. Francois Lalonde demonstrates to practitioners the proper way to give a newborn hip exam.

Health Topics

Smiling young girl sitting on a skateboard wearing a backpack

Kids and Broken Bones

Young wrists, forearms and elbows are vulnerable to injury. Few kids grow up without breaking a bone. Prompt, expert care of fractures is necessary.