膝盖未受过伤，但有退行性关节炎，附上去年X-ray的报告：

1.Medial compartment mild narrowing bilaterally suggesting chondromalacia and/or meniscal disease;

2.Mild degenerative changes at te lateral compartment and beaking of the intercondylar eminence;

3. Right greater than left patellar subluxation with tilt and lateral compartment DJD, Left greater than right marginal osteophyte or developmental spur at the superior patellae;

4.Enthesopathic spurs at the quadriceps insertion bilaterally ;

5. Bilateral suprapatellar small effusion