Description
Osteochondritis dissecans (OCD) is characterized by subchondral bone pathology leading to progressive detachment of osteochondral fragments. Disease progression involves increasing necrotic zones with densified sclerotic rims. For early stages, antegrade or retrograde drilling promotes revascularization and reossification. Larger lesions necessitate cartilage-bone fragment refixation using screws. We performed a magnetic-resonance imaging (MRI) and physical examination at a mean follow-up of 47,5 months in patients treated with screw fixation.