A recent study looked at arthroscopic knee surgery for meniscus tears. Surgery was performed on 293 patients and 324 menisci. 129 of the procedures were primary repairs of the meniscus. 149 were primary partial meniscectomies, and 46 discoid saucerizations with or without stabilization. The success rate of meniscal surgery is 87% in children and adolescents. 13% of the menisci required a revision procedure. Primary repairs had the highest failure rate (18%), followed by the primary discoid saucerization (15%) and partial meniscectomies (7%). Children with an open physis and a bucket-handle tear had the highest retear rate of 46%.
Source: American Journal of Sports Medicine, Published online January 27, 2016