Hi, thanks for writing to HCM.
As you are 75 years old, the likely possibility is a DEGENERATIVE meniscal tear
A few facts about meniscal tears -
* Not all meniscal tears needs surgical management
* Tears occuring in the peripheral rim of
meniscus may heal spontaneously
* Symptomatic tears with pain, effusion and instability needs arthroscopic excision
The conservative mode of management for meniscal tear is as follows -
* activity modification by avoiding impact sports which causes more strain on the knee joint
* using an elastic compression bandage to reduce the swelling
* Ice packing to alleviate the pain
*
Physiotherapy to strengthen the quadriceps muscle
Hope this information is helpful. Good day