An articulated knee assembly for arthroscopy simulation comprising: an anatomical model containing a knee; an articulation mechanism coupled to the anatomical model via a rocker arm wherein the articulation mechanism is configured to enable angular or flexion, extension or traction and varus-valgus movements of the anatomical model, and the articulation mechanism comprises: - angular or flexion articulation means; - lateral or varus-valgus articulation means; - means for extension or traction; - locking means to prevent the varus-valgus movements when the anatomical model is extended; and - means for quantifying the movements by measuring linear or angular length displaced in said movements, wherein the means for quantifying the movements comprises: angular movement readers (17a, 17b, 17c) to quantify the varus-valgus movements, the extension or traction and the angular or flexion movements; characterised in that the means for quantifying the movements further comprises a connecting rod coupled to a first one of the angular movement readers at one end and to the rocker arm via a first shaft at another end, wherein the angular or flexion movements of anatomical model are transmitted to the first one of the angular movement readers by the connecting rod which transmits movement of a part rotating in solidarity with the first shaft on which the rocker arm in solidarity acts. an anatomical model containing a knee; an articulation mechanism coupled to the anatomical model via a rocker arm wherein the articulation mechanism is configured to enable angular or flexion, extension or traction and varus-valgus movements of the anatomical model, and the articulation mechanism comprises: - angular or flexion articulation means; - lateral or varus-valgus articulation means; - means for extension or traction; - locking means to prevent the varus-valgus movements when the anatomical model is extended; and - means for quantifying the movements by measuring linear or angular length displaced in said movements, wherein the means for quantifying the movements comprises: angular movement readers (17a, 17b, 17c) to quantify the varus-valgus movements, the extension or traction and the angular or flexion movements; characterised in that the means for quantifying the movements further comprises a connecting rod coupled to a first one of the angular movement readers at one end and to the rocker arm via a first shaft at another end, - angular or flexion articulation means; - lateral or varus-valgus articulation means; - means for extension or traction; - locking means to prevent the varus-valgus movements when the anatomical model is extended; and - means for quantifying the movements by measuring linear or angular length displaced in said movements, wherein the means for quantifying the movements comprises: angular movement readers (17a, 17b, 17c) to quantify the varus-valgus movements, the extension or traction and the angular or flexion movements; characterised in that the means for quantifying the movements further comprises a connecting rod coupled to a first one of the angular movement readers at one end and to the rocker arm via a first shaft at another end, angular movement readers (17a, 17b, 17c) to quantify the varus-valgus movements, the extension or traction and the angular or flexion movements; characterised in that the means for quantifying the movements further comprises a connecting rod coupled to a first one of the angular movement readers at one end and to the rocker arm via a first shaft at another end,