Review of Arnoczky and Warren on the microvasculature of the human meniscus

Meniscal Preservation is Important for the Knee Joint

“…There is general consensus in literature that tears in the red-red zone of the meniscus must be repaired, but management of tears in the red-white zone is still controversial. 34 Arnoczky and Warren in their seminal work on meniscal vasculature demonstrated that there was variable vascular penetration in the medial meniscus, but this was not correlated with age, sex, or anatomic location. 35 Healing in the peripheral vascular portion of the meniscus has greater potential than in the central avascular zones.…”

Shuttling Technique for Directed Fibrin Clot Placement During Augmented Inside-Out Repair of Horizontal Meniscus Tears

“…This is particularly true when tears are predominantly located in a relatively avascular region of the meniscus or if patient age or biological characteristics are less favorable. 9 , 10 , 11 …”

“…In addition, BMAC harvest may have associated procedural risks and technical difficulty. 11 , 12 , 15 …”

A Classic Revisited

“…Dr Arnoczky began using the terms “red-red,” “red-white,” and “white-white” as descriptive terms for the location of a repair based upon the gross visual appearance of the blood supply. 3 The regional classification of meniscus tear location was codified by Cooper, Arnoczky, and Warren 4 in 1990—where the letters A through F signify the medial/lateral and anterior/midbody/posterior locations and the numbers 0 through 3 denote peripheral to central status.…”