"Hidden Lesions of the Knee": Meniscal Ramp Lesions

Meniscal RAMP lesions are not uncommon with ACL injuries and their incidence is higher in young males sustaining non-contact injuries. Diagnosis requires awareness of the lesion, and its hidden location and how to access it on arthroscopy remain the gold standard in detecting these tears. Despite trials to explain RAMP lesions by signal changes on MR imaging, a correlation was built in only one third of the cases. The healing potential along with the effect on knee stability of RAMP lesions is the reason behind repairing them. In this chapter, we intend to outline the description, incidence, effects, diagnosis and treatment outcomes of these lesions.