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Sports Medicine
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Osteochondral Autograft Transfer (OATS/Mosaicplasty)

Cartilage Restoration

A 26-year-old female recreational runner presents with persistent medial knee pain 1 year after an acute twisting injury. MRI reveals a 15mm diameter full-thickness cartilage defect of the medial femoral condyle weight-bearing zone. Arthroscopy confirms a contained, stable, focal chondral lesion with intact surrounding cartilage. Regarding osteochondral autograft transfer (OATS) indications and technique:

Mark each as TRUE or FALSE

A

Osteochondral autograft transfer is indicated for focal, contained chondral or osteochondral defects...

B

Common donor sites include the superolateral aspect of the lateral femoral condyle (most common), th...

C

Mosaicplasty (multiple small plugs) and single large plug OATS have identical outcomes for all lesio...

D

Mosaicplasty uses multiple smaller diameter plugs (4-8mm) to fill larger or irregular defects, achie...

E

Perpendicular plug insertion is critical for maximizing articular surface coverage and minimizing ga...

Answer the questions to see explanations

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