1/5. The use of fresh allografts in osteochondrosis dissecans of the lateral femoral condyle.OBJECTIVE: Reconstruction of joint surface by using allografts to fill extensive bone-cartilage defects. INDICATIONS: Bone-cartilage defects ranging from a diagonal length of at least 3 cm and a depth of minimum 1 cm to maximum the entire lateral femoral condyle, e. g., following trauma, in the case of osteochondrosis dissecans, or following the resection of benign tumors. CONTRAINDICATIONS: Arthrosis. Minor or superficial cartilage defects. Bipolar defects. SURGICAL TECHNIQUE: The transplant bed is reamed precisely into the recipient's knee, the donor knee is opened, the block required for transplantation is measured, prepared and press-fit inserted. A straight leg axis is required for a good surgical result. POSTOPERATIVE MANAGEMENT: No weight bearing on the operated leg, two underarm crutches for 10 weeks, then partial weight bearing and further increase in weight bearing depending on postoperative allograft healing. CT follow-ups to assess postoperative healing of the transplant after 3 and after 8-12 months. Sporting activities that put pressure on the knee joint should not be undertaken until at least 1 year after surgery; cycling and swimming-depending on the CT-from the 6th postoperative month onward. RESULTS: Three male patients aged 21 (n = 2) and 28 (n = 1) were operated on for osteochondrosis dissecans of the lateral femoral condyle and observed for an average of 26 months. Postoperative healing of the transplanted tissue was confirmed in all patients by means of CT. For two of them, the vitality of the transplant was confirmed by means of MRT and contrast agents, and good postoperative healing of the transplant was also represented arthroscopically. All patients were subjectively satisfied, without complaints, and had improved range of motion in the operated knee.- - - - - - - - - - ranking = 1keywords = osteochondrosis (Clic here for more details about this article) |
2/5. osteochondrosis dissecans of the glenoid.osteochondrosis dissecans of the glenoid is a rare condition that has been mentioned only once in the literature, by Lavner in 1947. Trauma is generally accepted as a cause of this disorder. Injury produces an ischemic insult to the subchondral bone and possible loose body formation if fragmentation of the articular surface occurs. Endocrine abnormalities, genetic influences, and the presence of anomalous centers of ossification may also contribute to the development of this condition. We present two patients whose clinical histories indicate a traumatic etiology of osteochondrosis dissecans of the glenoid. We also discuss the radiological, clinical, and etiological features of this entity.- - - - - - - - - - ranking = 0.16666666666667keywords = osteochondrosis (Clic here for more details about this article) |
3/5. osteochondrosis dissecans occurring in the knee and ankle of the same patient.osteochondrosis dissecans is a disease that is known to present in multiple joints. A literature search revealed no reports of this lesion appearing in the knee and ankle of the same patient. Such a clinical presentation is the basis for this report, which is intended to alert clinicians to include osteochondrosis dissecans in their differential diagnosis of knee and ankle pain. A short review of the literature and treatment alternatives is included.- - - - - - - - - - ranking = 0.16666666666667keywords = osteochondrosis (Clic here for more details about this article) |
4/5. Injuries at the articulating surfaces of bone (chondral, osteochondral, subchondral fractures and osteochondrosis dissecans)Fractures involving the articulating surfaces of bone are a common cause of joint disability. Management options are as numerous as the terms used to describe these lesions. These terms include osteochondral, transchondral, flake or chip fractures as well as osteochondrosis (osteochondritis) dissecans. The understanding of these traumatic lesions and their sequelae has been increased by modern imaging technology, especially magnetic resonance imaging (MRI). This paper reviews the mechanism of these injuries, their incidence, clinical presentation, radiological appearance and the principles of their treatment. hyaline cartilage, subchondral bone plate and subchondral cancellous bone have to be seen as an anatomic unity. Subchondrally located cancellous microfractures, osteochondral fractures and solely chondral fractures are different manifestations of impaction injuries at the articulating surfaces. We believe that osteochondrosis dissecans in most cases is also the result of undiagnosed injury at the articulating surface of bone.- - - - - - - - - - ranking = 1keywords = osteochondrosis (Clic here for more details about this article) |
5/5. osteochondrosis dissecans of the lateral femoral condyle before skeletal maturity.Many surgical techniques are available for the treatment of osteochondrosis dissecans before skeletal maturity with variable success. In this paper we present a simple and safe surgical technique of bone grafting and temporary stabilization. The rare case of a 10-year-old boy, who suffered from a large developing osteochondrosis dissecans of the lateral femoral condyle, is reported. This patient was treated by retrograde autologous bone graft and fixation of the fragment with K-wires. After 4 weeks partial weight-bearing was possible. During 5 months the lesion healed well which could be demonstrated by x-ray and MRI. Consequently, the K-wires were removed. Because there is a high risk of osteoarthritis developing in the weight-bearing areas, especially in large lateral lesions, prophylactic stabilization and bone grafting is suggested. This can be performed successfully by the demonstrated simple technique.- - - - - - - - - - ranking = 0.33333333333333keywords = osteochondrosis (Clic here for more details about this article) |