✦ Complex Knee Revision Surgery

Revision ACL Reconstruction

Q: Why do ACL grafts fail after reconstruction?

Failure can result from traumatic re-injury, tunnel malposition, graft impingement by a bone bridge or inadequately resected notch, premature return to sport, biological failure of graft incorporation, or inadequate fixation strength at the time of surgery.

Q: What graft is used for a revision ACL reconstruction?

An alternative graft source is selected for revision. If ipsilateral hamstring was used previously, the contralateral hamstring, quadriceps tendon, or allograft are the principal alternatives, chosen based on tunnel condition and available bone stock.

Q: Are the results of revision ACL reconstruction as good as primary?

Revision outcomes are slightly lower — approximately 80–85% success versus over 90% for primary. However, carefully planned revision surgery with the correct graft, anatomic tunnels, and thorough rehabilitation still achieves excellent results for most patients.

Q: How long does recovery from revision ACL surgery take?

Revision reconstruction requires a longer recovery than a primary procedure. Return to competitive or contact sport typically takes 9–12 months. A conservative, well-structured rehabilitation programme is essential to reduce the re-tear risk after revision.

When a previous ACL graft has re-torn or failed to restore stability, revision surgery rebuilds the ligament using a carefully selected new graft — giving the knee a second reliable chance at full function.

75–120 min PROCEDURE

1–2 Days HOSPITAL STAY

>80% SUCCESS RATE

9–12 Months FULL RECOVERY

What is Revision ACL Reconstruction?

Revision ACL reconstruction addresses a failed previous ACL surgery — whether from traumatic graft re-rupture, tunnel malposition, graft impingement, inadequate fixation, or a return to sport before full graft maturation. Compared to primary reconstruction, revision surgery is more complex because of existing bone tunnels, potential bone stock deficiency, and the need for alternative graft choices. Thorough pre-operative CT assessment of tunnel positions and bone stock is essential before deciding whether single or staged reconstruction is appropriate. Dr. Sai Kishan performs revision ACL surgery at Lux Hospitals with detailed pre-operative analysis guiding every aspect of the revision plan.

Indicated for patients with a confirmed failed previous ACL reconstruction who experience ongoing instability, mechanical giving way, or functional limitation — and where MRI and CT have characterised the failure pattern and confirmed that revision reconstruction is the appropriate next step.

How the Procedure Works

CT & MRI Planning

CT scan evaluates prior tunnel positions and bone stock; MRI characterises the graft status and identifies any associated meniscal or cartilage pathology.

Anaesthesia & Arthroscopic Assessment

Spinal or general anaesthesia; the knee is arthroscopically assessed to confirm the failure pattern and evaluate tunnel bone stock prior to reconstruction.

Tunnel Evaluation & Management

Previous tunnels are assessed; bone grafting is used where tunnels are widened or malpositioned to allow anatomic revision reconstruction.

Alternative Graft Harvest & Passage

A new graft — contralateral hamstring, quadriceps tendon, or allograft — is harvested, prepared, and passed through new anatomically positioned tunnels.

Secure Fixation & Extended Rehab Planning

The graft is tensioned and fixed; portals are closed and a more extended return-to-sport timeline is planned compared to primary reconstruction.

Outcomes

75–120 minDURATION

1–2 DaysHOSPITAL STAY

>80%SUCCESS RATE

9–12 MonthsRETURN TO SPORT

Who Needs This Treatment?

→Rebuilds knee stability when a previous ACL repair has failed or re-ruptured
→CT-guided tunnel assessment prevents repeating prior technical errors
→Alternative graft sources — contralateral hamstring, quadriceps, allograft — available
→Concurrent meniscal or cartilage pathology addressed in the same procedure
→Staged approach used when bone loss demands prior grafting before reconstruction
→Extended rehabilitation timeline tailored to maximise protection against a further re-tear

Revision ACL reconstruction starts well before the operating theatre — if you have not understood why the first graft failed, you are at serious risk of making the same mistake again. The pre-operative plan is everything.

— — Dr. Sai Kishan Sirasala, Knee and Hip Joint Replacement & Robotic Surgery

Common Questions

Frequently Asked

Why do ACL grafts fail after reconstruction?+

What graft is used for a revision ACL reconstruction?+

Are the results of revision ACL reconstruction as good as primary?+

How long does recovery from revision ACL surgery take?+

Not sure which treatment is right for you?

Book a consultation with Dr. Sai Kishan and get a personalised treatment plan.

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