Figure 1
From: Fibrosis is a common outcome following total knee arthroplasty

Arthroscopic evidence of arthrofibrosis in the knee.
(a) Magnetic resonance image (MRI) of a knee joint. Red arrows indicate the location of the suprapatellar synovium and infrapatellar fat pad. (b) Arthroscopic view of an aberrant fibrous band bridging the space between the suprapatellar pouch roof (R) with evidence of neovascularisation (nV) and the superior articular margin of the trochlea (T) in a patient with severe arthrofibrosis (i). Surgical cautery with a diathermy probe (P) of dense layered adhesions (A) lying within the lateral synovial gutter of the knee (ii).