Dr. Oussama Chaar Consultant Orthopedic, Knee and Hip surgeon
Years of Experience : 35
Nationality : Belgium
Languages Known : Arabic, French, English, Spanish
Book AppointmentBiography
Dr. Oussama Chaar is an internationally recognized orthopedic surgeon with more than 35 years of experience in hip and knee surgery, joint reconstruction, complex deformity correction, and advanced arthroplasty techniques. He obtained his MD degree from the University of Liège in 1984 and completed his Orthopaedic Surgery fellowship at the University Hospital of Liège in 1990 with the distinction of “High Excellency.” He also earned a diploma in Biomechanics from the Université Libre de Bruxelles and received the prestigious “Lejeune & Lechien” award for Best Scientific Research. For more than two decades, Dr. Chaar practiced as a Senior Consultant Orthopedic Surgeon in Belgium while also serving as a visiting surgeon in the Middle East. Since relocating to the UAE in 2014, he has held leading positions in both government and private healthcare institutions, including serving as Head of the Orthopedic Department at Burjeel Hospital. Dr. Chaar is internationally recognized for his pioneering contributions to joint replacement surgery and complex hip reconstruction. He founded a specialized center dedicated to hip and knee surgery and has successfully performed more than 18,000 hip and knee replacement procedures. Over many years, he developed an innovative technique for total hip replacement in patients with severe congenital hip dislocation (Crowe IV dysplasia). This technique enabled correction of leg length discrepancies of up to 11 cm without femoral shortening osteotomy a world-leading achievement exceeding previously reported limits in the medical literature. He has also developed advanced minimally invasive techniques in knee replacement surgery aimed at reducing postoperative pain, accelerating rehabilitation, and improving functional recovery. In addition, he introduced a hip-preserving minimally invasive surgical technique for selected young patients.
Awards & Achievements
- Scholarship awarded to one of the top ten students in the national Baccalaureate
- Dean’s Honour List during medical school
- International academic award from Aarhus University, Denmark
- “Lejeune & Lechien” Award for Best Scientific Research – Faculty of Medicine, University of Liège
- International recognition for innovation in complex hip reconstruction surgery
Research & Publications
- [Transposition of the tibial tuberosity in recurrent dislocations and painful femoro-patellar syndromes. Study of a continuous series of 140 operated knees] Gillet P, Lemaire R, Chaar O.Acta Orthop Belg. 1989;55(3):429-38. French.
- [Use of the cementless RM cup in total prosthesis arthroplasty of inflammatory coxitis].
- Longree P, Gillet P, Chaar O, Lemaire R. Acta Orthop Belg. 1988;54(2):142-7. French.
- [Surgical aspects of treatment of bone metastasis of the extremities].
- Lemaire R, Gillet P, Chaar O. Rev Med Liege. 1986 May 15;41(10):402-8. French.
- Is There a Limit to Lengthening in Patients Who Have Crowe IV Developmental Dysplasia of the Hip Undergoing Total Hip Arthroplasty?
- Ibrahim El-Ganzoury, MDa ∙ Mohammad T. Ghazavi, MD, FRCSCb ∙ Vahit Emre Özden, MDc,d ∙ Jesus Moreta, MDe ∙ Oussama Chaar, MDf ∙ Vorawit Atipiboosin, MDg ∙ Ömer F. Bilgen, MDh ∙ Daisuke Inoue, MD, PhDi ∙ Peilai Liu, MDj ∙ Yanguo Qin, MDk ∙ Ahmed S. Younis, MDl
- https://www.arthroplastyjournal.org/article/S0883-5403(24)01092-1/abstract
- What Are the Indications for Surgical Intervention for Patients Who Have Femoro-acetabular Impingement of the Hip?
- Ali Parsa, MDa,b ∙ Benjamin G. Domb, MDb ∙ Javad Parvizi, MDc ∙ Naomi Kobayashi, MDd ∙ Oussama Charr, MDe ∙ Amirshahriar Ariamanesh, MDf
- https://www.arthroplastyjournal.org/action/doSearch?type=quicksearch&text1=Is+there+is+a+limit+for+limb+lengthening+&field1=AllField
- Research on stem cells 2023-2024 https://www.khaleejtimes.com/lifestyle/health/abu-dhabi-successful-stem-cell-trial-knee-osteoarthritis
- Do knee alignment patterns differ between Middle Eastern and East Asian populations? A propensity-matched analysis using artificial intelligence Jisoon Park1, Oussama Chaar2, Jayakrishnan Narayanakurup1, Alamedin Sobhe Abdelsamea Abdelhamead2, Du Hyun Ro3,4,5 and Sung Eun Kim3
- https://kneesurgrelatres.biomedcentral.com/counter/pdf/10.1186/s43019-025-00261-w.pdf
- Upcoming publication : Total hip replacement in bilateral high riding Crowe IV with staged correction and 11 cm limb length restoration without femoral osteotomy : a case report Oussama Chaar, Hussein Akil, Remi Chaar.
- An Open-Label Single-Arm Phase I/IIa Study to Evaluate the Safety of Human Allogeneic Bone-Marrow-Derived Mesenchymal Stromal Cell Product StromaForte® for the Treatment of Knee Osteoarthritis.
- Authors: Oussama Chaar1, Victoria L Wyckelsma2, Axel Olin2, Monika B Sharma3, Ali Guermazi4,5, Jamie E Collins6, Charbel Khalil1, Mira Mousa7, 8, Sultan Mohamed Abdou Saeed Alazazi7,9, Habiba Al Safar7,10, Heidi Stensmyren2,129, Katarina Le Blanc118, Alameldin Hamed1, Nadir Kadri118,12
Expertise
- Complex primary hip and knee replacement
- Revision hip and knee arthroplasty
- Complex lower limb deformity correction
- Treatment of bone and periprosthetic joint infection
- Orthopedic oncology and bone tumours
- Complex pelvic, periarticular, and periprosthetic fractures
- Hip dysplasia and complex reconstructive surgery
- Rapid recovery and minimally invasive joint replacement
Membership
- Member of the American Academy of Orthopedic Surgeons ((AAOS)
- Member of the Belgian Society for Orthopedic Surgery and Traumatology (SOBCOT)
- Member of the French Society of orthopedic surgery (SOFCOT)
- Member of European hip society
- Member of World Expert in Arthroplasty
- Member of international consensus for bone and joint infection (ICM)
Blogs
ACL Tear Recovery Timeline: Surgery vs. Non-Surgical Treatment
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Hip Replacement Surgery: Age, Recovery & Long-Term Outcomes
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Vitamin D Deficiency Treatment: Comprehensive Guide to Boosting Your Levels Naturally
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