Does Surgery Ever Fail?
Fortunately, permanent ingrown toenail procedures are highly successful.
However, no procedure in medicine has a 100% success rate.
A small number of patients experience recurrence despite appropriate treatment.
Understanding why this occurs helps explain why revision surgery is occasionally necessary.
Residual Nail Matrix
The most common reason for recurrence after a permanent procedure is that a very small portion of the nail matrix survives treatment.
Even a tiny remaining section of matrix can continue producing nail.
Over time, this small fragment grows into what is commonly called a nail spicule.
What Is a Nail Spicule?
A nail spicule is a narrow, sharp fragment of nail that grows from residual nail matrix.
Although tiny, it can behave exactly like the original ingrown toenail.
Patients often notice:
- Pain months later.
- Localised swelling.
- Tenderness in one corner.
- Recurrent discharge.
- A sharp piece of nail emerging through the skin.
Because the spicule is so small, it can easily be overlooked unless examined carefully.
Incomplete Matrix Treatment
Permanent procedures depend on successfully treating the small section of matrix responsible for producing the offending nail edge.
If treatment does not completely include the intended matrix, nail regrowth may occur.
Fortunately, this is relatively uncommon when meticulous technique is used.
Incorrect Diagnosis
Occasionally, the original diagnosis may not have been the entire problem.
Conditions that can mimic or contribute to persistent symptoms include:
- Nail deformities.
- Chronic fungal nails.
- Soft tissue abnormalities.
- Subungual exostosis.
- Tumours of the nail unit (rarely).
Persistent symptoms sometimes require reassessment rather than simply repeating the previous treatment.
Ongoing Trauma
Even after successful surgery, repeated trauma from:
- Tight footwear.
- Sporting activities.
- Occupational pressure.
may continue irritating the surrounding tissues.
Although this usually does not recreate the original ingrown nail, it may contribute to ongoing discomfort.
Unrealistic Expectations
Some patients expect the toe to look exactly the same immediately after surgery.
Healing takes time.
Temporary drainage, mild redness and gradual cosmetic improvement are all normal.
Confusing normal healing with treatment failure sometimes leads patients to worry unnecessarily.
Evidence Update
Most recurrences following permanent nail surgery are associated with incomplete destruction or removal of the offending nail matrix. Careful technique and appropriate patient selection are key factors influencing long-term success.
Patient Tip
If symptoms return months after what appeared to be successful surgery, don't assume you have to live with it. A careful assessment may identify a very small correctable cause.