About the Procedure
The ACL is one of the most commonly injured ligaments of the knee. Approximately half of ACL injuries occur along with damage to the meniscus, articular cartilage, or other ligaments.
Anterior Cruciate Ligament (ACL) reconstruction is a surgical procedure to replace a torn ACL, which is a critical ligament for knee stability. This surgery is common among athletes and individuals with active lifestyles.
The procedure typically involves using grafts from the patient’s own body (autografts) to create a new ligament. The two primary types of grafts used are hamstring tendon grafts and quadriceps tendon grafts.
Experts in Orthopaedic Surgery
Our surgeons specialise in the latest approaches to sports medicine and ACL Reconstruction to restore knee strength and function. Our goal is to reduce recovery times, minimize pain, and achieve the best possible outcomes.

Dr. Kajeandra Ravichandiran, H.BSc., MSc, MD, FRCSC
Orthopaedic Surgeon — Durham Bone and Joint Specialists
Affiliated with Lakeridge Health – Ajax/Pickering Campus
Biography
Dr. Kajeandra Ravichandiran completed his undergraduate, graduate, and medical training at the University of Toronto. He went on to complete his Orthopaedic Surgery Residency at the University of Western Ontario, followed by two fellowships in Toronto focusing on lower extremity reconstruction and sports medicine.
He joined Durham Bone and Joint Specialists in 2021 and has since developed a comprehensive surgical practice with expertise in both joint reconstruction and sports-related injuries.
Clinical Expertise
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Direct anterior and lateral hip replacement
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Total knee replacement
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Revision arthroplasty (hip and knee)
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Arthroscopic knee surgery
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High tibial osteotomy
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ACL reconstruction
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Multi-ligament knee injuries
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Trauma reconstruction of upper and lower extremities
Research & Academic Interests
Dr. Ravichandiran has contributed to multiple peer-reviewed research publications in Orthopaedics and Biomedical Engineering and has presented at several international conferences. His current interests include navigated and robotic-assisted orthopaedic surgery, with an emphasis on precision and improving outcomes in joint reconstruction.
Degrees
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H.BSc. — University of Toronto
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MSc — University of Toronto
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MD — University of Toronto
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FRCSC — Royal College of Physicians and Surgeons of Canada
Fellowships
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Lower Extremity Reconstruction and Arthroplasty – University of Toronto
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Sports Medicine and Arthroscopy – University of Toronto
Languages
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English
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Tamil

Training
Dr. Joel Lobo completed his medical school and residency in Orthopaedic Surgery at the University of Toronto. Following his residency, he completed a Trauma and Upper Limb Reconstructive fellowship at St. Michael’s Hospital where he specialized in Shoulder and Elbow surgery. Subsequently, he completed a Sports Medicine and Arthroscopy fellowship at the Toronto Western Hospital, caring for players and staff from professional sports teams in Toronto. He currently practices at Lakeridge Health Ajax and Pickering Hospital and is the the Medical Director and co-founder of The Shoulder Centre.
Consultancies
Dr. Lobo is a consultant surgeon for the WSIB’s Shoulder and Elbow Surgical Specialty Program at Sunnybrook Health Sciences Centre and the Ontario Workers Network. He is a former Division Head of Orthopaedic Surgery at Ajax Pickering Hospital.
He is an educational consultant for Arthrex, Inc. He regularly instructs at surgical skills labs in Canada and the United States to teach advanced arthroscopic reconstructive techniques in the shoulder and knee to residents, fellows and other practicing international orthopaedic surgeons. He is on the educational committee for the Arthroscopy Association of Canada and a member of the Canadian Orthopaedic Association, Canadian Shoulder & Elbow Society, and Arthroscopy Association of North America.
Specialty Interests
Since the development of The Shoulder Centre, his practice has become focused to include the reconstruction of sports-related knee injuries, as well as Arthroscopic reconstruction of the Shoulder and Knee with a special interest inand All-Inside ACL reconstruction using Quadriceps Tendon, Complex shoulder instability and labral repair, and Arthroscopic rotator cuff repair. He is an international leader on Superior Capsular Reconstruction of the Shoulder. Along with a sportsmedicine practice, Dr. Lobo has an special interest in the treatment of injured Police Officers, Military and Fire Personnel, Paramedics and First Responders as a result of his training with Dr. Anthony Miniaci, formerly at The Toronto Western Hospital and now at The Cleveland Clinic.
The Shoulder Centre & Patient Reported Outcome Measures
Dr. Lobo is the Medical Director at The Shoulder Centre at Lakeridge Health. Along with his partners at Durham Bone and Joint Specialists, Dr. Lobo collects and uses Patient Reported Outcome Measures and Evidence Based Medicine to continuously develop and refine surgical techniques, and physiotherapy aftercare protocols based on outcomes data. This initiative has been recognized by the Provincial Government in Ontario, published in textbooks and medical journals, and presented at Health Quality meetings internationally.
Read more at
Transforming Shoulder Care by Hopital News
Specialty
- Sportsmedicine and Arthroscopic Reconstruction of the Shoulder and Knee
Degrees
- M.D., F.R.C.S.(C).
Training
- M.D., 1997, University of Toronto
- Orthopaedic Surgery Residency 1997 – 2002, University of Toronto
- Orthopaedic Trauma & Upper Limb Reconstructive Fellowship, 2002, St. Michael’s Hospital, Toronto
- Orthopaedic Sportsmedicine Fellowship, 2003, Toronto Western Hospital, Toronto

Dr. Marcin Kowalczuk is an Orthopaedic Surgeon with subspecialty fellowship training in upper extremity reconstruction, sports medicine and trauma.
Dr. Kowalczuk completed medical school and his orthopaedic surgery residency training at McMaster University. Following his residency, Dr. Kowalczuk completed a sports medicine and arthroscopy fellowship at the University of Pittsburgh where his training included working with members of the medical staff for the Pittsburgh Penguins and Pittsburgh Steelers. Upon returning back to Canada Dr. Kowalczuk completed additional subspecialty training in upper extremity reconstruction and trauma at the University of Toronto, Sunnybrook Health Sciences Center.
His surgical expertise includes:
- Rotator Cuff Repair
- Shoulder Instability
- Anatomic Total Shoulder Arthroplasty
- Reverse Total Shoulder Arthroplasty
- ACL Reconstruction
Specialty
- Upper Extremity Reconstruction, Sports Medicine and Trauma
Degrees
- M.D., F.R.C.S.(C).
- B.MSc.
Get a Referral
Learn more how we prioritize your care and be seen within 3 weeks.
Only a referral from a Family Doctor, Walk-In-Clinic, or Urgent Care Centre is required to be seen at Durham Bone & Joint Specialists.

