Editorial Commentary: Retrograde Femoral Nail Malpositioning Can Destroy Knee Cartilage.

Retrograde femoral nail malpositioning can obviously destroy knee trochlear cartilage. A solution is osteochondral allograft transplantation surgery. Although case reports are rarely published in Arthroscopy, we make an exception and publish a report of 2 cases of this complication (and how to treat it) because exposure of complications that have not been previously well-reported could allow future surgeons, and their patients, to solve-and, preferably, proactively avoid-similar problems.