Tendinosis involves microtears in the quadriceps tendon and abnormal healing where healthy tendon is replaced by fibrous scar tissue. There is still a component of inflammation within the degenerative process, however, and patients and doctors alike will use the terms synonymously.
Quadriceps tendinopathy is often associated with patellar tendonitis, or jumper's knee, as individuals who play jumping sports such as volleyball and basketball are at higher risk for developing this condition. Quadriceps tendonitis occurs more commonly in males when compared to females.
Quadriceps tendinopathy presents with pain over the quadriceps tendon or superior border of the patella.
M76.899 – Other specified enthesopathies of unspecified lower limb, excluding foot
16052151000119104 – Tendinitis of bilateral quadriceps tendon
- Patellar fracture (see also distal femur fracture, tibial plateau fracture, stress fracture)
- Quadriceps contusion
- Patellofemoral syndrome
- Patellar instability (dislocation or subluxation)
- Quadriceps muscle strain
- Calcific tendonitis
- Lumbar radiculopathy
- Referred pain from hip pathology
- Patellar tendon rupture
- Quadriceps tendon rupture