Chondromalacia Patellae

Question 1

What is Chondromalacia Patellae (CMP)?

Answer 1

AKP due to degenerative changes to the posterior cartilage of the patella leading to pain and inflammation.

Question 2

Who is likely to develop CMP?

Answer 2

Young athletes (15-35)

Question 3

What is the derivative for the name Chondromalacia Patellae?

Answer 3

Greek words:
Chondros = Cartilage
Malakia = softening
Patellae = of the patella

Question 4

What causes CMP?

Answer 4

Overuse and repetitive PFJ stress with patellar malalignment.

Question 5

Where does pain present with CMS?

Answer 5

On the Posterior aspect of the patella (behind the kneecap)

Question 6

What are some common reasons for patella malallignment?

Answer 6

• Q-Angle increase (leading to increased lateral pull on the patella)
• Muscular Tightness of Rec Fem, TFL, Hams or Gastroc.
• VMO insufficiency
• Patella Alta

Question 7

What is the Clinical Presentation of CMP?

Answer 7

AKP localised behind the patella
Exacerbated by PFJ loading
TOP medial and lateral border of patella
Crepitus with knee extension
Potentially biomechanical issues (Pat Alta / Q-Angle)

Question 8

What is the Primary diagnostic approach for CMP?

Answer 8

Radiography with added arthrography.

Question 9

What would be found with passive and active mobility of CMP?

Answer 9

Passive ROM would be full and painless
Active ROM & Repetitive KE would produce pain in PFJ.

Question 11

What is the management for CMP?

Answer 11

Conservative first:
Quads, Hams, Hips stretching and strengthening
Activity modification
Ice & NSAIDs / Rest appropriately
Taping? Orthosis?