Pes anserinus tendinopathy refers to dysfunction within the tendons which attach to the inside of the lower leg just below the knee joint.
The function of these tendons is to transmit forces produced by three inner thigh muscles and control movement of the knee joint.
Common reasons are overweight, biomechanical overburden and improper poster (Lupo and Biciotti, 2016). Repetitive use of these muscles and, therefore, their tendons can lead to collagen disruption and micro tears in the tendon.
Management involves rest from aggravating factors and a graduated strengthening programme for the muscles around the knee.
Lupo S. and Bisciotti G.N., 2016, Pes Anserinus Tendinopathy, Springer International Publishes, Switzerland, pp: 139-147