A notchplasty is a surgical widening of the intercondylar notch, usually performed as part of an anterior cruciate ligament reconstruction to prevent catching of the new ligament.
Notchplasty for the Arthroscopic Treatment of Limited Knee Extension. Ferrari MB, Mannava S, DePhillipo N, Sanchez G and LaPrade RF. Arthrosc Tech. 2017 Jun; 6(3): e517–e524.