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Sports Medicine
intermediate
X-Type

Osteochondral Defects of the Knee - Classification and Treatment Algorithm

Cartilage and Osteochondral Lesions

A 28-year-old male footballer presents with persistent medial knee pain and mechanical symptoms 6 months after a twisting injury. MRI reveals a focal full-thickness cartilage defect of the medial femoral condyle measuring 2.5 cm² with subchondral bone involvement. The patient has failed 3 months of conservative management including activity modification and physiotherapy. He wishes to return to competitive sport. Regarding the classification and treatment of osteochondral defects of the knee:

Mark each as TRUE or FALSE

A

The ICRS (International Cartilage Repair Society) classification grades cartilage lesions from 0-4: ...

B

MICROFRACTURE is indicated for lesions less than 2 cm²; creates fibrocartilage (predominantly Type I...

C

Microfracture produces hyaline cartilage identical to native cartilage; is the best option for lesio...

D

OATS/Mosaicplasty (osteochondral autograft transfer) is indicated for 1-4 cm² lesions; harvests plug...

E

ACI/MACI (autologous chondrocyte implantation/matrix-induced) is indicated for lesions greater than ...

Answer the questions to see explanations

Click T (True) or F (False) for each option