19h30 – 21h00

The South African Arthroplasty Society (SAAS) is excited to be hosting a virtual event on the cutting-edge field of robotic assisted joint replacement surgery. We have secured three well known international robotic surgeons to share their knowledge with our members. In addition, we also have a very strong local faculty consisting of very experienced robotic surgeons. The virtual event will culminate in the establishment of the Robotic & Computer Assisted Orthopaedic Surgery (ROCAOS) Special Interest Group within SAAS.


International Faculty

Prof Sebastien Parratte – Abu Dhabi

Prof Ali Belooshi – Dubai

Dr Dionysios Chissas – Greece


Local Faculty

Dr Jurek Pietrzak – Johannesburg

Dr Werner van der Merwe – Bloemfontein

Dr Jan Louis van der Berg – Cape Town

Dr Nkosiphendule Mzayiya – Pretoria



19h30 – 19h35: Opening Remarks President of SAAS Dr Lipalo Mokete

19h35 – 19h50: Prof Ali Belooshi – “My Experience in the United Arab Emirates with Robotic TKA”

19h50 – 20h05: Dr Dionysios Chissas – “Robotics is the Future of Joint Replacement Surgery”

20h05 – 20h20: Prof Sebastien Parratte – “Why I use Robotics for Primary Joint Replacement?”

20h20 – 20h40: Dr Juek Pietrzak (Moderator) Panel Discussion with entire Faculty

20h40 – 21h00: Official launch of the South Africa ROCAOS Special Interest Group and appointment of Office Bearers.


Professor Sebastien Parratte

Professor Sebastien Parratte (MD, PhD) is a French Orthopaedic surgeon. Internationally recognized leader in his field. After completing his training in France and USA at the world-renowned, Mayo Clinic, he became one of the youngest professors of Orthopaedic Surgery in France.

He completed more than 5000 primary knee and hip arthroplasties and more than 700 revision arthroplasties with complex bone defects. He also specialized in complex cases such as post-traumatic cases, complex deformities as well as arthroplasties in young active patients.

Pr. Parratte has a particular interest on computer-assisted surgery and he is now the only European involved in the design team of a new surgical robot for knee arthroplasty.

On the sport medicine side, Pr. Parratte was the surgeon of the pro Ligue 1 team of Bastia during 4 years, taking care of all the professional football players knee and hip injuries including ACL and meniscal problems.

He invented a new patient-specific custom jig osteotomy system to correct complex deformities or optimize the management of early arthritis of the knee.


Dr. Dionysios Chissas

MD PhD, Orthopedic Surgeon

Dr. Dionysios Chissas is the Chief of the Robotic Orthopedic Surgery Department at Metropolitan Hospital Athens, Greece. lie has a wide  experience  performing  robotic   assisted knee 8 hip surgeries  with  Mako,  since  2014, while also performing the largest number of robotic-arm assisted knee and hip surgeries in Greece aod ooe of tbe largest ouzabers io tbe world. Dr. Chissas is also a trainer for the Mako CeztiYicat oo Cowses.


  • Consultant Orthopedic Surgeon
  • Robotic assisted Knee & Hip Surgery IMAKOI since 2014, Arthroscopic surgery, sports injuries
  • Head, Sports Medicine Center, Hellenic Amateur Athletic Association
  • Member of the Medical Commission, Hellenic Olympic Committee


  • Medical School Degree, University of Athens, Greece
  • PhD, Democritus University of Thrace, grade summa cum laude
  • Postgraduate specialty training:   Josef  Hospital,  Essen, Germany; Royal Liverpool Cr  Broadgreen  University  Hospitals, UK; and the Physicians Regional Medical Center, Naples, Florida, USA
  • Certified Physician in USA for Robotics Knee 6• Hip Surgery


  • Greek, English, German