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Zachary Sirois, M.D.

Hip & Knee Reconstruction

Zachary J. Sirois, MD is a fellowship-trained orthopedic surgeon specializing in adult reconstruction, with expertise in primary and revision hip and knee replacement. His clinical interests include outpatient joint replacement, partial knee arthroplasty, muscle-sparing anterior hip replacement, complex revision surgery, and robotic-assisted techniques designed to optimize recovery and patient outcomes.

Zachary J. Sirois, MD is a fellowship-trained orthopedic surgeon specializing in adult reconstruction, with expertise in primary and revision hip and knee replacement. His clinical interests include outpatient joint replacement, partial knee arthroplasty, muscle-sparing anterior hip replacement, complex revision surgery, and robotic-assisted techniques designed to optimize recovery and patient outcomes.

Dr. Sirois earned his undergraduate degree in Molecular Biology from Cedarville University and his medical degree from Wright State University Boonshoft School of Medicine, where he was inducted into the Alpha Omega Alpha Honor Medical Society. He completed his orthopedic surgery residency at Mount Carmel Health System in Columbus, Ohio, before pursuing advanced fellowship training in Adult Reconstruction at OrthoCarolina in Charlotte, North Carolina.

Throughout his training, Dr. Sirois received numerous honors, including the John R. Kean Orthopedic Resident of the Year Award and the Mount Carmel Orthopedic Resident Teacher of the Year Award, recognizing both his clinical excellence and commitment to education.

Dr. Sirois has contributed extensively to orthopedic research and has authored and co-authored publications in leading peer-reviewed journals, including the Journal of Orthopaedic Trauma, Arthroplasty Today, and the Journal of the American Academy of Orthopaedic Surgeons. His research interests focus on complex primary and revision arthroplasty, periprosthetic fractures, and innovative surgical techniques.

Outside of medicine, Dr. Sirois enjoys spending time with his wife and children and pursuing outdoor activities in every season, including fly fishing, hunting, hiking, and skiing. A lifelong sports enthusiast, he played soccer at a competitive level and continues to enjoy both soccer and hockey.

Education
  • UNDERGRADUATE:
    Cedarville University
  • MEDICAL SCHOOL:
    Wright State University Boonshoft School of Medicine
  • ORTHOPEDIC RESIDENCY:
    Mount Carmel Health System
  • FELLOWSHIP:
    OrthoCarolina
Titles, Honors & Awards
  • Award
    Mount Carmel Orthopedic Resident Teacher of the Year Award
  • John R. Kean Orthopedic Resident of the Year Award
  • BSOM Academy of Medicine 1st Year Excellence Award
Associations
  • American Association of Hip and Knee Surgeons (AAHKS)
  • American Academy of Orthopedic Surgeons (AAOS)

Patient Reviews

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Frequently Asked Questions

When should I see an orthopedic specialist?

Consider seeing an orthopedic specialist when pain persists, limits your movement or interferes with daily activities. A specialist can identify the cause and discuss surgical and nonsurgical treatment options. Traumatic bone or joint injuries caused by an accident or fall may require immediate orthopedic trauma and fracture care.

 

What is the difference between an orthopedic surgeon and a sports medicine physician?

An orthopedic surgeon treats conditions affecting the bones, joints, muscles, ligaments and tendons and can perform surgery when necessary. Sports medicine focuses on preventing and rehabilitating activity-related injuries.

Orthopedic ONE’s sports medicine program includes primary care sports medicine physicians, fellowship-trained orthopedic surgeons, athletic trainers and physical therapists. The right provider depends on the condition and whether surgical expertise may be needed.

What causes knee pain when going up or down stairs?

Pain while using stairs may need an individual evaluation because several knee conditions can cause similar symptoms. Orthopedic ONE’s knee specialists diagnose and treat conditions associated with overuse, patellofemoral pain syndrome, patellar tendinitis, muscle strains, ligament sprains, arthritis and cartilage injuries.

Can a torn meniscus heal without surgery?

Not every meniscus tear automatically requires surgery. Orthopedic ONE offers both surgical and nonsurgical treatment options for meniscus tears. A knee specialist can evaluate the location and nature of the injury and recommend an appropriate treatment plan. Learn more about the conditions treated by Orthopedic ONE’s knee specialists.

What are the treatment options for knee arthritis?

Nonsurgical treatment options may include personalized exercise, weight management, physical therapy, activity modification, corticosteroid injections and nonsteroidal anti-inflammatory drugs.

Depending on the extent of joint damage, other options may include biologic therapies, cartilage restoration, osteotomy, partial knee replacement or total knee replacement. Orthopedic ONE’s joint preservation specialists work to preserve the natural joint and delay replacement whenever appropriate.

When is a hip replacement recommended?

Hip replacement may be considered when advanced arthritis or significant joint deterioration causes ongoing pain and reduced function. Younger or active patients with early-stage arthritis, labral tears or structural hip conditions may be candidates for treatments designed to preserve the natural joint.

An orthopedic hip specialist can assess the condition and determine whether joint preservation or hip replacement should be considered.

How long does recovery take after a knee replacement?

Recovery varies according to the patient and treatment plan. The Orthopedic ONE patient education library provides a Step-by-Step Guide to Total Knee Replacement and Recovery, preoperative education and home-exercise resources. Your physician and care team will provide instructions based on your procedure and individual needs.

Can physical therapy help me avoid surgery?

Yes. Physical therapy is often a first-line treatment for musculoskeletal pain and injuries. A treatment plan may include therapeutic exercise, manual treatment, pain-relief techniques, activity changes and injury-prevention education.

For some patients with osteoarthritis, physical therapy and other conservative treatments may help delay or avoid joint-replacement surgery. Learn more about Orthopedic ONE’s approach to joint preservation.