MACI offers the flexibility to treat cartilage defects in multiple areas of the knee, and surgeons sometimes turn to the MACI procedure to treat patients with multi-focal knee cartilage damage.
What to consider in your clinical decision-making process?
The “Problem List”
When making clinical decisions, Dr. Seth Sherman, an orthopedic surgeon, says he always starts by developing a “problem list” for each patient. This is usually informed by bi-lateral weightbearing X-rays of the patient as well as an MRI, which helps guide the decision-making process for surgical vs. non-surgical treatments.
When to Choose Surgery
Surgery might be warranted, for example, if the MRI reveals intra-articular loose bodies of knee cartilage. Dr. Sherman might choose surgery and then during the arthroscopy he can remove the loose bodies and also prepare for the MACI procedure by measuring any chondral defects and taking a MACI biopsy.
The Case for Treating Multi-Focal Cartilage Defects with MACI
If a patient has multi-focal, unipolar chondral defects, and is young1 and healthy, Dr. Sherman might also choose to pursue MACI. This could be the case, for example, with patella and lateral femoral chondral defects in the same knee of a patient experiencing patellar instability and/or pain.
How Common are Multiple Cartilage Defects?
Treatment of multiple cartilage defects represents about 30% of cases, according to a study of the first 1,000 patients to undergo the MACI knee cartilage repair procedure.2
Find more information on best practices for MACI knee cartilage repair here.
Please see below for full indication and ISI.
References 1. MACI has not been studied in patients younger than 18 or over 55 years of age. 2. Carey J, Remmers A, Flanigan D. Use of MACI (Autologous Cultured Chondrocytes on Porcine Collagen Membrane) in the United States. The Orthopaedic Journal of Sports Medicine. [Internet]. 2020 August;8(8):1-7