Koebner phenomenon induced by repeated orthopaedic surgery
Trauma or surgical incision might cause Koebner phenomenon (KP) in patients with cutaneous diseases, but seldom studies reported KP induced by repeated orthopedic surgery. One such case has been reported in the journal Medicine.

The 22-year-old man did not have any prior histories of cutaneous diseases. Two months after the revision surgery for nonunion of the left femoral shaft fracture, KP was noted by psoriasis presented at the surgical scar, left thigh, scalp, and trunk. Phototherapy and topical treatments were prescribed but the effect was limited.

The patient was diagnosed with KP induced by failed revisional orthopedic surgery. Because of implant failure, he underwent the second revision surgery, which was performed on the previous scar surrounded and covered by psoriatic plaques.

After the second revision surgery successfully corrected the orthopedic problem, the psoriatic lesion remitted along with the bone union.

Learning Points:-
- In a patient having KP, to perform an operation on psoriatic lesion sites was safe and the surgical wound could heal well.

- The most important to treat KP induced by orthopedic surgery might be the underlying bone stability.

Read in detail about the case here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662305/
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