A mosaicplasty is a surgical procedure to repair damaged joint cartilage by harvesting small cores of cartilage and bone from a non-weightbearing part of the joint and packing them into a mosaic to repair a larger weightbearing defect in the cartilage.

Transferring viable cartilage plugs means that the defect now has a new cartilage covering, although the gaps may fill with less robust fibrocartilage.


How do they do a mosaicplasty?

Via a mini-arthrotomy incision the bone and cartilage plugs are taken with a small corer, similar to an apple corer. The preparation of the recipient bed to exactly the right depth and the press-fitting of the mosaic of cores is performed via arthroscopy. The patient is kept non-weightbearing on crutches for up to 4 weeks.

osteochondral graft
osteochondral autograft

Surgical cartilage repair for knee osteoarthritis

An overview of the various options available for surgical cartilage repair of the knee.



Knee donor-site morbidity after mosaicplasty – a systematic review. Andrade R, Vasta S, Pereira R, Pereira H, Papalia R, Karahan M, Oliveira JM, Reis RL and Espregueira-Mendes J. J Exp Orthop. 2016 Dec; 3: 31.

A new point of view for mosaicplasty in the treatment of focal cartilage defects of knee joint: honeycomb pattern. Erol MF and Karakoyun O. Springerplus. 2016; 5(1): 1170.

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