There are two types of knee replacements:
- Fixed bearing – performed by the vast majority of orthopaedic surgeons
- Mobile bearing – which allows the knee to rotate, which is my personal choice
The total knee replacement is a very successful operation. Its results tend to be predictable. The chances of the joint lasting ten years are in excess of 95%.
Mr Prakash’s approach: I have chosen to perform ‘mobile bearing’ knee replacements as the prosthesis allows the joint to rotate and find its position of least constraint. As a result, it is expected that these joints will last much longer than the fixed bearing knee replacements. However, this will have to be checked over a period of time.
While performing this surgery, I ensure that the joint is ‘fully balanced’, both in flexion and extension, using a very highly sophisticated soft tissue distracter. This allows me to check the tension of the ligaments and at the same time I can check the gap between the bones very accurately.