“…6 This underestimation of tear size on MRI may be due to inherent measurement error, tear enlargement or fiber-end coaptation between MR examination and arthroscopy, or tendon debridement. 5,6 For partial-thickness tears, it should be described whether the tear is located on the bursal (superficial) surface or the articular (deep) surface of the tendon or is intrasubstance in location (i.e., the tear does not involve either the bursal or articular surface) 2 (►Figs. 3,4,5,6).…”