Transchondral fracture, osteochondral fracture, osteochondritis or dome fracture are all terms used to describe similar lesions ofthe talus. Although this lesion has been extensively studied (Berndt and Harty 1959; Mukherjee and Young 1973; Yvars 1976; Alexander and Lichtman 1980; Canale and Belding 1980; O’Farrell and Costello 1982), several questions of clinical relevance remain unanswered, s...

Osteochondritis dissecans (OCD) of the knee is a common cause of knee pain and dysfunction among skeletally immature and young adult patients. OCD is increasingly frequently seen in pediatric, adolescent and young adult athletes. If it is not recognized and treated appropriately, it can lead to secondary osteoarthritis with pain and functional limitation. Stable lesions in skeletally immature p...

Two cases of idiopathic avascular necrosis of the scaphoid are reported and it is suggested that the aetiology could be the same as that recently described for Keinboeck's disease by Beckenbaugh et al. (1980). The condition described in this paper is a different entity from that described by Preiser (1910), which was probably not an osteochondritis but an undiagnosed fracture.

We report the second case of osteochondritis dissecans (OCD) of the knee in identical twins (bilaterally in one and unilaterally in the other). Fixations with bio-absorbable pins, cylindrical osteochondral graft, and osteochondral mosaicplasty were all successful and bone union was achieved. We considered that genetic factors remain essential even if other factors (particularly repetitive traum...