Clinical and Radiological Outcomes of Subchondroplasty in the Treatment of Bone Marrow Edema of the Knee

Bone marrow lesions (BMLs) of the knee are common subchondral defects, often associated with pain and functional limitation. Subchondroplasty is a percutaneous procedure in which calcium phosphate is injected inside BML areas, ensuring stability and promoting the deposition of new bone. Primary outcome of this study was to obtain a reduction of the Numeric Rating Scale score of 4 points or more at 6 months follow-up in more than 75% of patients. The secondary outcome was to evaluate the osteoarthritic and bone marrow structure evolution in the months after the procedure.