You had a knee replacement expecting the pain to be behind you. For a while it was. Now the knee aches again, or feels unstable, or has never felt right since the day of surgery.
Revision total knee replacement in Faridabad is one of the more demanding operations in orthopaedics, and it is not simply “doing the knee replacement again”. It requires working out precisely why the first one failed, because a revision done without that answer will fail too.
At Dr. Sunil Choudhary’s clinic, we prioritize patient safety and employ advanced techniques to minimize the risk of complications during revision knee replacement. Our skilled and experienced team ensures personalised care and successful outcomes for all patients.
Signs that a knee replacement may be failing
- Pain that has returned after a period of being pain-free
- Pain that was never relieved by the original surgery
- A sensation of the knee giving way or being unstable
- Progressive stiffness or loss of movement
- Swelling, warmth or redness around the knee
- A grinding or clunking sensation
- Fever, wound discharge or feeling systemically unwell — this needs urgent assessment
Why knee replacements fail
Finding the cause is most of the work. The main reasons are:
- Aseptic loosening — the implant loses its fixation to bone over time. The commonest long-term cause
- Infection — can appear early or many years later, sometimes seeded from a dental or urinary infection. Must be excluded in every painful replacement before anything else is considered
- Instability — soft tissues not correctly balanced, or stretched over time
- Polyethylene wear — the plastic insert wears, generating debris that causes bone loss
- Malalignment or malrotation — components positioned outside acceptable limits
- Stiffness — arthrofibrosis, often related to inadequate early physiotherapy
- Periprosthetic fracture — a break in the bone around the implant
- Extensor mechanism problems — patellar maltracking or tendon failure
How we investigate a painful knee replacement
Infection must be excluded first, in every case. A revision performed on an infected knee without treating the infection will fail, and the patient ends up worse off than before.
- Blood tests — CRP and ESR as screening inflammatory markers
- Joint aspiration — fluid from the knee sent for cell count, differential and prolonged culture. This is the single most important test
- Serial X-rays compared with the immediate post-operative films, looking for lucent lines, implant migration and osteolysis
- CT for component rotation; nuclear medicine scans in selected cases
- Careful clinical examination of stability, alignment, tracking and the extensor mechanism
A proportion of painful knee replacements have no identifiable cause. In those cases I will tell you so, because revising a knee without knowing why it hurts rarely helps and often makes things worse.
What revision surgery involves
The old implants are removed with as little bone loss as possible — this is the technically delicate part. Bone defects are then reconstructed using metal augments, cones or sleeves, and the new components are supported with stems that transmit load to healthier bone further up and down the limb. More constrained implant designs are used where ligaments are deficient.
Where infection is confirmed, the standard approach is a two-stage revision: the implant is removed, an antibiotic-loaded cement spacer is placed, intravenous antibiotics are given for several weeks, and a new implant is inserted once the infection has cleared. It is a longer road, but it is what reliably eradicates infection.
Recovery and realistic expectations
Revision surgery takes longer, involves more blood loss and has a longer recovery than a primary replacement. Hospital stay is typically three to five days. Walking aids are needed for longer, and full recovery takes six to twelve months.
I want to be honest about outcomes: revision knee replacement is generally very effective at relieving pain, but functional results are usually a step below a well-functioning primary replacement. The aim is a stable, comfortable, durable knee — not the knee of a twenty-year-old.
Choosing a revision knee replacement surgeon in Faridabad
Revision is a volume-dependent operation. Ask any revision total knee replacement doctor in Faridabad three questions: how many revisions they perform each year, whether the full range of revision implants and augments is available at their hospital, and whether they can manage a two-stage revision for infection. If the answer to the third is no, the infection cannot be properly treated there.
Frequently asked questions
My knee replacement hurts but my surgeon says the X-ray is fine. What now?
A normal X-ray does not exclude infection, instability or component malrotation — none of which show on a plain film. The next steps are inflammatory markers, joint aspiration and a CT for rotation. A second opinion is reasonable.
How long after the first operation can a revision be done?
There is no fixed interval. What matters is the cause. An infected replacement needs addressing quickly. Loosening is revised when symptoms justify it. Waiting with a loose implant allows progressive bone loss, which makes the revision harder.
Can a revision knee replacement be revised again?
Yes, though each revision is more difficult and the results less predictable, because bone stock is progressively lost. This is why doing the first revision correctly — with the right diagnosis — matters so much.
Is revision surgery covered by insurance?
Generally yes, though pre-authorisation requirements are stricter and documentation of the failure is required. Our team handles this. Bring your original surgery records and implant details if you have them.
Author & Medical Review
Medically reviewed by Dr. Sunil Choudhary, MBBS, MS, DNB, MRCS, FRCS (Tr & Orth).
