These tears present as a broken-off piece where the inner portion is displaced into the middle of the joint while still attached at the horns of the meniscus, forming a “bucket handle” shape.

The majority of meniscal tears affect the medial meniscus ... A bucket-handle tear may displace into the intercondylar notch, where it may cause true locking of the knee joint.

The meniscus is cartilage in the knee that cushions the joint. Meniscal tear is caused due to any activity that causes forceful twist of the knee such as aggressive pivoting or sudden stops and turns.

Arthroscopy revealed a 3.6 × 2.6 × 1.5 cm firm pedicular localised pigmented villonodular synovitis originating from the insertion of the anterior horn of the medial meniscus ... can mimic symptoms of ...