Revision Hip & Knee Replacement Specialist Surgeon Singapore 

Revision Arthroplasty: The Expert Management of Failed Joints

The Surgeon of Last Resort Revision surgery—replacing a failed joint replacement—is significantly more complex than primary surgery. It requires not just the ability to implant a device, but the expertise to reconstruct lost bone and restore stability in a compromised limb. As a Tertiary Referral Center, we routinely receive cases from other surgeons where a primary hip or knee replacement has failed. We specialize in the "salvage" of these joints, offering solutions where others may only see amputation or permanent disability.

Why a Musculoskeletal Oncologist is the Ideal Revision Surgeon The challenges of revision surgery—massive bone loss, instability, and poor soft tissue quality—are the exact same challenges we face daily in limb salvage oncology.

• Bone Loss Management: Standard surgeons are often unprepared for the degree of bone destruction found in loose implants. We utilize the same Trabecular Metal and Allograft (Donor Bone) techniques used in tumor reconstruction to rebuild the foundation of your joint.

• Custom Solutions: When "off-the-shelf" implants do not fit, we utilize 3D-Printed Custom Implants designed specifically for the patient’s unique defect. This technology, pioneered in our oncology practice, allows us to bridge gaps that were previously impossible to fix.

• Megaprostheses: In severe cases where the bone is entirely lost, we can transition to a "Tumor Prosthesis" or Megaprosthesis to replace large segments of the femur or tibia, instantly restoring weight-bearing function.

Addressing the Causes of Failure We take a systematic, multidisciplinary approach to the three main causes of implant failure:

1. Aseptic Loosening: We use Porous Metal Technology that mimics the structure of natural bone, encouraging the patient’s bone to grow into the implant for long-term biological fixation.

2. Periprosthetic Infection: Infection is a devastating complication. We employ a rigorous Two-Stage Revision Protocol, utilizing antibiotic-loaded cement spacers to eradicate the bacteria before implanting a new, pristine joint. Our background in biological reconstruction ensures the highest standards of infection control.

3. Instability & Dislocation: For hips that frequently dislocate, we utilize Dual-Mobility Bearings or Constrained Liners. These advanced designs provide the range of motion of a standard joint but with the "locking" stability required for complex cases.

Our Commitment to Complexity Many surgeons are excellent at performing a standard replacement in a healthy patient. We excel when the standard procedure fails. Our history as trainers and pioneers in the region means we have seen—and fixed—nearly every mode of failure. We do not just swap parts; we reconstruct the limb to restore your quality of life.

Joint replacement surgery is one of the most effective orthopaedic interventions in providing painless functional range of motion to the joints - principally the hip and knee. With newer materials and designs these implants can typically last 15 to 20 years. After this time these implants do run their course and need to be changed out. Most times the implants put in are able to last the patients lifetime. Occasionally, however, the joints need to be changed especially if the patient had them put in early in a previous time. Unlike primary joint replacements which should be in the purview of most orthopaedic surgeons, the experience required for such revision arthroplasties are not common. The patients tend to be older and require specific consideration for more medical problems. The implants used may not be compatible with newer designs and need to be revamped if they cannot be retained and adapted. Bone loss as a result of revision can result in the need for bone transplants in addition to specialised joint replacement implants.