One of the questions Mr Kosuge is asked frequently at consultations is: "How long will it last?" It is entirely the right question. The answer has improved considerably over the past two decades — and for most patients, it is far more reassuring than they might expect.
What the Registry Data Shows
The National Joint Registry for England, Wales, Northern Ireland and the Isle of Man is one of the most comprehensive databases of joint replacement outcomes in the world. Its data consistently shows that the majority of hip and knee replacements performed today are still functioning well at 15 to 20 years. For hip replacement, the 20-year survival rate for cemented implants in appropriate patients is above 90%. Knee replacement data tells a similar story.
These are population-level figures. Individual outcomes depend on a number of factors — but for the typical patient, the probability of needing a revision operation within 20 years is relatively low.
What Affects How Long an Implant Lasts?
Several factors influence longevity. Activity level is relevant — higher-impact activities place greater stress on your hip or knee replacement. Body weight matters, as excess load accelerates wear. Age at the time of surgery is a factor, not because younger patients have worse outcomes, but because they are more likely to outlive their implant. Implant type and surgical technique also play a role — which is why the experience of the surgeon and quality of implant positioning matter.
Mr Kosuge uses implants with well-established track records supported by NJR and international registry data, and focuses on precise positioning to optimise longevity.
What Is Revision Surgery?
If an implant eventually fails — through wear, loosening, or other reasons — revision surgery can replace the components. Revision surgery is more complex than primary replacement and recovery is typically longer. However, it is a well-established procedure with good outcomes in experienced hands, and should not be a reason to avoid a primary replacement that is clinically indicated.
How to Maximise the Life of Your Implant
Maintaining a healthy weight reduces load on the joint. Staying active through low-impact exercise — swimming, cycling, walking — maintains muscle support around the implant. Avoiding very high-impact activities such as running or contact sports is generally recommended after total joint replacement. Mr Kosuge will discuss your expectations and guid you during your consultations leading up to surgery.
The Bottom Line
For most patients today, a hip or knee replacement should be expected to last well into the 20-year range — and many implants perform well beyond that. The risk of needing a revision at some future point is usually outweighed by the years of improved function and freedom from pain that replacement provides.
To book an appointment with Mr Kosuge at The Rivers Hospital:
Telephone: 01279 602675