PROBLEM TO BE SOLVED: To provide a knee-region covering orthosis capable of inhibiting an occurrence of lateral thrust.SOLUTION: The knee-region covering orthosis includes: a body part consisting of a stretchable material and a non-stretchable material or a stretchable material a first extension part that faces the fibular collateral ligament and at least a part in the vicinity thereof and has extension force higher than that of the body part a second extension part that is inclined from the outside of the knee joint to the inside of the femoral region and has the extension force and/or fastening force higher than that of the body part and a third extension part that is inclined from the outside of the knee joint to the inside of the leg region and has the extension force and/or fastening force higher than that of the body part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】 ラテラルスラストの発生を抑制することができる膝部被覆装具を提供する。【解決手段】 伸縮性素材と非伸縮性素材又は伸縮性素材からなる本体部と、外側側副靭帯およびその近傍の少なくとも一部に対面し、前記本体部よりも高い伸長力を有する第一伸長部と、膝関節外側から大腿部内側に掛けて傾斜し、前記本体部よりも高い伸長力及び/又は緊締力を有する第二伸長部と、膝関節外側から下腿部内側に掛けて傾斜し、前記本体部よりも高い伸長力及び/又は緊締力を有する第三伸長部と、を備える。【選択図】図1