For your osteochondral injury, there are several factors which we consider in its management. The size, anatomical location, and depth of the lesion. I would really have to see the MRI and examine your knee, before making an assessment.
If you have tried conservative management methods like medication, physiotherapy, braces etc, and it doesn’t work and you’re still symptomatic, the osteochondal lesion is unlikely to heal.
I would really strongly recommend considering surgery, as the aim of surgery is to “patch” back and cover the lesion, allowing it to heal properly and hence reduce pain and regain function of the knee.
Kind regards
Dr Sean Ng