Autologous Osteochondral Mosaicplasty for Osteochondritis Dissecans of the Elbow in Teenage Athletes by Norimasa Iwasaki, Hiroyuki Kato, Jyunichi Ishikawa,

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Presentation transcript:

Autologous Osteochondral Mosaicplasty for Osteochondritis Dissecans of the Elbow in Teenage Athletes by Norimasa Iwasaki, Hiroyuki Kato, Jyunichi Ishikawa, Tatsuya Masuko, Tadanao Funakoshi, and Akio Minami JBJS Essent Surg Tech Volume os-92(Supplement 1 Part 2): September 1, 2010 ©2010 by The Journal of Bone and Joint Surgery, Inc.

The patient is placed supine on the operating table. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

A 4 to 6-cm longitudinal posterior skin incision is made just ulnar to the proximal radioulnar joint. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

The radiohumeral joint is exposed posteriorly by splitting the anconeus muscle fibers. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

An osteochondritis dissecans lesion (black arrow) on the anterior part of the capitellum can be visualized well with extreme flexion of the elbow. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

The osteochondritis dissecans lesion is raised, and the subchondral fibrous tissue is curetted. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

3.5-mm drill guide is used to determine the number of grafts that will be needed. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

A 4 to 5-cm longitudinal skin incision is made just lateral to the patella. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

A distance between each harvest site of ≥5 mm is achieved to avoid fracture of the articular surface of the donor site. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

Acufex Mosaicplasty instrumentation used for graft implantation. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

With the assistance of a universal guide, a tubular tunnel is created with an appropriately sized drill-bit. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

The grafts have been press-fit flush into the prepared osteochondral defect. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.

The most critical point in graft insertion is to avoid having the graft sink below the host surface. Norimasa Iwasaki et al. J Bone Joint Surg Am 2010;os- 92: ©2010 by The Journal of Bone and Joint Surgery, Inc.