| The osteochondral grafts are harvested from the medial rim of the trochlea of the ipsilateral knee, either via arthroscopy or via a small arthrotomy. |
| By contrast, a medial arthrotomy led to a decentralisation of the patella with numerous patellar luxations. |
| The grafts were harvested and delivered by arthroscopy in 6 cases and arthrotomy in 15 cases. |
| In both cases, arthrotomy and arthroscopy, an intra-articular Redon drain is inserted for 24 hours. |
| His multicentre study currently involves 367 cases operated on using arthrotomy or arthroscopy, all areas combined. |
| It is essential to remember that the grafts must be harvested perpendicular to the cartilage surface, and in the event of problems, one should not hesitate to resort to a small medial parapatellar arthrotomy of 1.5 to 2 cm. |
