Thousand Oaks Orthopedic Surgeon
Dr. Sivasundaram
Dr. Sivasundaram is a Board Certified Orthopedic Surgeon in Thousand Oaks who specializes in sports medicine, shoulder, hip, and knee surgery. His clinical expertise includes advanced minimally invasive arthroscopic procedures and reconstructive joint surgery. He has specialized training in the field of joint preservation procedures, including modern cartilage restoration techniques, shoulder arthroplasty, and arthroscopic hip preservation surgery.
Dr. Sivasundaram is accomplished in both clinical and laboratory research and has authored more than 70 scientific manuscripts and textbook chapters that have received national recognition and awards within the field of sports medicine and shoulder. He has previously been invited to lecture on these topics both nationally and internationally.
Dr. Sivasundaram was born and raised in San Fernando Valley. He obtained his undergraduate degree in Neuroscience from UCLA, where he graduated cum laude. He received his medical degree from the Keck School of Medicine at USC, where he was inducted into the Alpha Omega Alpha honors society and graduated with a Distinction in Research. Dr. Sivasundaram completed his residency in Orthopaedic Surgery at Case Western Reserve University in Cleveland, OH.
He subsequently completed a one-year fellowship in Sports Medicine and Shoulder Surgery at the Rush University Medical Center in Chicago, IL; frequently recognized as a premier hospital for Orthopaedic Sports Medicine and Shoulder Surgery. During this time, he served as an assistant team physician for the Chicago Bulls (NBA) and Chicago White Sox (MLS).
In his spare time, Dr. Sivasundaram enjoys staying active with weightlifting and traveling.
Education & Training
Residency, University Hospitals, Case Western Reserve University
Fellowship, Sports Medicine and Shoulder Surgery, Midwest Orthopaedics at Rush
BS, University of California, Los Angeles
MD, Keck School of Medicine at USC
Awards
Thousand Oaks Orthopedic Surgery
Dr. Sivasundaran's clinical expertise in Thousand Oaks encompasses advanced minimally invasive arthroscopic procedures and reconstructive joint surgeries. He has specialized training in joint preservation techniques, including modern cartilage restoration, shoulder arthroplasty, and arthroscopic hip preservation surgery. His Thousand Oaks practice focuses on treating shoulder, hip, and knee conditions, aiming to restore function and help patients return to their pre-injury activity levels. Dr. Sivasundaran is also accomplished in clinical and laboratory research, having authored over 100 scientific manuscripts and textbook chapters that have received national recognition and awards in sports medicine and shoulder. He has been invited to lecture on these topics both nationally and internationally.
Thousand Oaks Sports Medicine, Shoulder, Hip, and Knee Surgeon
Dr. Sivasundaram offers a comprehensive range of orthopedic services, including treatment for shoulder, hip, and knee conditions. His focus is on complex arthroscopic procedures, advanced shoulder replacement, and Mako robotic surgery. His approach emphasizes patient-centered care, utilizing both operative and nonoperative methods to achieve optimal outcomes. Dr. Sivasundaram practices at locations in Simi Valley and Thousand Oaks. He is currently accepting new patients and is committed to providing high-quality orthopedic care to the community. We welcome second opinions. Dr. Sivasundaram regularly evaluates and takes on highly complex, revision, and advanced reconstructive cases that other surgeons may deem too challenging or outside their scope of practice.
Why Patients Choose Dr. Sivasundaram
When complex shoulder, hip, or knee problems require more than a standard approach, Ventura County patients turn to Dr. Lucky Sivasundaram — one of the few surgeons in the region performing advanced reconstructive procedures at meaningful volume.
Conditions & Procedures — Thousand Oaks
Dr. Sivasundaram treats the full spectrum of shoulder, hip, and knee conditions — from sports injuries in active adults and athletes to complex joint reconstruction and revision surgery.
Shoulder
- Rotator Cuff Tears (partial & full thickness)
- Massive & Irreparable Rotator Cuff Tears
- Failed Rotator Cuff Repair
- Total & Reverse Shoulder Replacement
- Shoulder Instability & Labral Tears
- Shoulder Arthritis
- Superior Capsular Reconstruction
- Biologic Patch Augmentation
- Lower Trapezius Tendon Transfer
- AC Joint Injuries
- Biceps Tendon Disorders
- Frozen Shoulder (Adhesive Capsulitis)
Hip
- Hip Arthritis
- Total Hip Replacement (Mako Robotic)
- Hip Labral Tears
- Femoroacetabular Impingement (FAI)
- Hip Arthroscopy
- Cartilage Injuries of the Hip
- Hip Flexor & Tendon Disorders
- Snapping Hip Syndrome
Knee
- ACL Tears & Reconstruction
- Meniscus Tears
- Knee Arthritis
- Total & Partial Knee Replacement (Mako Robotic)
- Cartilage Restoration
- Patellar Instability
- PCL & Multi-Ligament Injuries
- Knee Arthroscopy
Non-surgical options available: Dr. Sivasundaram also offers biologic injections including PRP and viscosupplementation, as well as cartilage preservation procedures — not every orthopedic condition requires surgery. Dr. Sivasundaram works with each patient to identify the treatment plan best suited to their activity level, goals, and anatomy.
Serving Patients Across Ventura County & the Conejo Valley
Dr. Sivasundaram's Thousand Oaks practice serves patients from throughout Ventura County, the Conejo Valley, and the western San Fernando Valley. With office locations in Thousand Oaks (137 E Thousand Oaks Blvd.) and Simi Valley (2525 Erringer Rd.), most patients are within a 30-minute drive. For complex cases requiring the expertise of a Thousand Oaks orthopedic surgeon with subspecialty shoulder training, patients also travel from Oxnard, Ventura, and greater Los Angeles.
Frequently Asked Questions — Thousand Oaks Orthopedic Surgeon
What orthopedic conditions does Dr. Sivasundaram treat in Thousand Oaks?
+Dr. Sivasundaram is a fellowship-trained orthopedic surgeon specializing in shoulder, hip, and knee conditions. His Thousand Oaks practice treats rotator cuff tears, shoulder replacement, shoulder instability, labral tears, hip arthritis, hip labral tears, femoroacetabular impingement, ACL injuries, meniscus tears, knee arthritis, and complex revision cases. He is one of Ventura County's only surgeons performing procedures such as superior capsular reconstruction, biologic patch augmentation, and lower trapezius tendon transfer at meaningful volume.
Is Dr. Sivasundaram accepting new patients in Thousand Oaks?
+Yes. Dr. Sivasundaram is currently accepting new patients at his Thousand Oaks office located at 137 E Thousand Oaks Blvd, Thousand Oaks, CA 91360. He also sees patients at his Simi Valley location. New patient consultations can be requested online or by calling (805) 303-2836. Same-week appointments are often available depending on urgency.
Does Dr. Sivasundaram offer second opinions for shoulder surgery?
+Yes. Dr. Sivasundaram welcomes second-opinion consultations, particularly for patients who have been told they have a massive or irreparable rotator cuff tear, failed prior rotator cuff repair, or who have been recommended shoulder replacement. He regularly evaluates complex cases that other surgeons may deem too challenging and provides both operative and non-operative treatment perspectives.
What is Mako robotic surgery and does Dr. Sivasundaram perform it?
+Mako is a robotic-arm assisted surgical system that allows surgeons to plan and perform joint replacement procedures with a high degree of precision. It creates a 3D model of the patient's anatomy before surgery, allowing individualized implant positioning. Dr. Sivasundaram performs Mako robotic surgery for shoulder, hip, and knee replacement at his Thousand Oaks practice.
Where is Dr. Sivasundaram's Thousand Oaks office located?
+The Thousand Oaks office is located at 137 E Thousand Oaks Blvd, Thousand Oaks, CA 91360, open Monday through Friday, 9am–5pm. Dr. Sivasundaram also sees patients at 2525 Erringer Road, Simi Valley, CA 93065. For directions or to schedule an appointment, call (805) 303-2836 or use the online contact form.
What communities does Dr. Sivasundaram serve near Thousand Oaks?
+Dr. Sivasundaram serves patients from throughout Ventura County and the greater Conejo Valley, including Thousand Oaks, Westlake Village, Agoura Hills, Moorpark, Newbury Park, Simi Valley, Camarillo, Calabasas, Oak Park, Oxnard, and Ventura. Patients with complex shoulder and joint reconstruction needs also travel from the San Fernando Valley and greater Los Angeles.