
Dr Chang Kin Yong Stephen
Specialization: Liver Transplantation
Online consultations: available
Workplace: Singapore, Singapore,
Clinical Expertise Dr Stephen Chang is a highly respected general surgeon with subspecialty expertise in: Advanced laparoscopic surgery Hepatobiliary and pancreatic surgery (gall bladder, liver and pancreas) Liver transplantation Minimally invasive and single-incision laparoscopic surgery (SILS) He is widely recognised as a pioneer in minimally invasive hepatopancreatobiliary (HPB) surgery in Singapore. Education & Specialist Training MBBS – National University of Singapore, 1994 Master of Medicine (Surgery) – National University of Singapore, 2000 Fellow of the Royal College of Surgeons of Edinburgh (FRCS Ed) – United Kingdom, 2003 Following his fellowship, Dr Chang underwent advanced subspecialty training in: Laparoscopic hepatobiliary and pancreatic surgery Liver transplantation 📍 Paris, France Surgical Innovation & Leadership Dr Chang played a key role in developing laparoscopic approaches to hepatobiliary and pancreatic surgery. His pioneering contributions include: Introduction of single-incision laparoscopic surgery (SILS) in Singapore Among the earliest surgeons worldwide to publish outcomes in: Single-incision laparoscopic gall bladder surgery Laparoscopic liver resection Laparoscopic pancreatic resection These contributions helped establish minimally invasive surgery as a standard of care for complex HPB procedures. Academic & Institutional Appointments Founding President, Hepatopancreatobiliary Association of Singapore Adjunct Associate Professor, Yong Loo Lin School of Medicine Visiting Senior Consultant, Division of Hepatobiliary & Pancreatic Surgery, National University Hospital Research, Innovation & MedTech Development Dr Chang has strong interests in both clinical research and medical technology innovation. His work spans: Clinical outcomes research Surgical innovation Medical technology (MedTech) development Research Highlights: Secured over SGD 7 million in research grant funding Developed new surgical techniques and treatment modalities Published extensively in clinical and MedTech research Filed 5 patents related to surgical technology and innovation His research focus is driven by a commitment to improving surgical precision, patient safety, and long-term outcomes. Current Practice Dr Chang continues to provide comprehensive surgical care at Mount Elizabeth Hospital, while remaining actively involved in academic medicine and tertiary surgical care through his appointment at NUH.

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PD Dr. med. Patrick Weber is a highly respected specialist in the implantation and revision of hip and knee endoprostheses. With extensive academic and surgical experience, he is recognized as one of Germany’s leading experts in modern joint replacement surgery. During his many years at the University Hospital of Munich (LMU) – Klinikum Großhadern, Dr. Weber served as Head of Hip Arthroplasty and Deputy Head of Knee Arthroplasty, gaining comprehensive expertise across the full spectrum of endoprosthetic surgery—including highly complex cases such as hip dysplasia and post-traumatic osteoarthritis. Expertise in Minimally Invasive Hip Replacement (AMIS) For many years, Dr. Weber has specialized in the minimally invasive, muscle-sparing implantation of hip prostheses using the AMIS method. He is internationally regarded as a reference surgeon and instructor for this advanced technique, which supports faster recovery and improved mobility. Another major focus of his work is the revision and replacement of existing hip and knee implants, particularly in cases of loosening, pain, or implant failure. Key Areas of Specialization Dr. Weber’s surgical expertise includes: Hip replacement surgery using the AMIS approach Knee replacement surgery, including unicondylar (partial) knee prostheses Implantation of hip and knee prostheses in complex anatomical situations, such as: Hip dysplasia Post-traumatic arthritis Revision arthroplasty (exchange of hip and knee prostheses) Conditions Treated Dr. Weber provides expert care for patients with: Coxarthrosis (hip osteoarthritis) Gonarthrosis (knee osteoarthritis) Painful or loosened endoprostheses Femoral head necrosis (avascular necrosis) Academic & International Recognition With more than 150 scientific publications and international lectures, PD Dr. Weber is a regularly invited speaker at leading national and global congresses focused on joint replacement and endoprosthetics. His combination of surgical precision, minimally invasive expertise, and academic leadership makes him a trusted authority in advanced hip and knee arthroplasty.

Director of the Hip Center – ATOS Clinic Munich The Hip Center at ATOS Clinic Munich is led by Dr. med. Raimund Völker, a founding member of the clinic and one of the most experienced specialists in hip endoprosthetics worldwide. Dr. Völker is among the very few internationally recognized surgeons who exclusively dedicate their practice to hip surgery. This exceptional level of specialization provides significant advantages for patients, allowing for highly precise treatment planning, advanced surgical expertise, and consistently outstanding outcomes. With over 20 years of experience in both standard hip replacement and bone-preserving hip resurfacing, Dr. Völker offers each patient the most suitable procedure based on individual anatomy, lifestyle, and long-term goals. Excellence in Hip Arthroplasty & Implant Quality Unlike standard approaches that rely on routine implants, Dr. Völker uses only high-quality, long-established original prosthetic systems at ATOS Clinic. This ensures: Maximum implant durability Long-term safety Excellent functional results His philosophy combines proven methods with innovation to provide the best possible joint replacement strategy for every patient. Minimally Invasive & Muscle-Sparing Surgery Dr. Völker applies modern surgical techniques that are: Minimally invasive Muscle-sparing Bone-conserving These approaches support faster recovery, improved mobility, and enhanced joint stability. Together with individualized implant selection and early intensive physiotherapy, patients benefit from an optimized Fast Track Recovery program. Key Areas of Expertise & Procedures Dr. Völker’s clinical focus includes: Diagnosis and treatment of hip osteoarthritis and its causes Advanced cartilage treatment options, including MRI-based cartilage cell therapy Total hip replacement (total endoprosthesis) Hip resurfacing surgery following the McMinn method (BHR) Short-stem hip prostheses Minimally invasive hip replacement techniques Enhanced Recovery Programs (ERP) Computer-assisted navigation for surgical precision

Specialist in orthopaedics and accident surgery, sports medicine Medical Director ATOS Clinic Munich Prof. Dr. med. Mark Tauber provides the entire spectrum of modern shoulder surgery. His main focus is on the minimally invasive treatment of upper arm head fractures and the arthroscopic treatment of shoulder pathologies Range of Services: Implantation and replacement of shoulder prostheses Arthroscopic suture of the rotator cuff Revisions after failed rotator cuff rupture Care of upper arm head fractures and long-term consequences Arthroscopic and open shoulder stabilisation after dislocation Dislocations of the shoulder joint Early osteoarthritis of the shoulder, cartilage regeneration Calculus shoulder Frozen shoulder
Location: Singapore, Singapore
Workplace: Mount Elizabeth Hospital
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