Biomedical subjects

D Janjić

Publications and source records attributed to D Janjić.

6 recordsLinked to original sources

PubMed1993

[Osteopoikilosis--case report].

A very rare case of osteopoikilosis, a disease which is an asymptomatic, genotypical osteopathy with an unknown cause, is described. Most often it is discovered by accidental radiography and it is characterized by the appearance of spotted and oval foci of compact cortical and lameral bone inside the canselous bones. The most common localization of these disorders are epiphyses and metaphyses of the long bones. The disorders have a static character and they do not demand any kind of treatment.

Adult↗

PubMed1991

[Early functional and anatomic results after total condylar knee prosthesis implantation].

The results of total knee replacement in 30 patients have been analyzed. Total knees were implanted during 1990, and the shortest follow-up time after the operations amounted to 6 months. All 30 total condylar prosthesis were of Insall-Burstein posterior stabilized design. The average age of the operated patients was 61 years. Osteoarthritis caused serious knee damage in 21 patients and was the indication for the operation; in 7 patients it was rheumatoid arthritis; in 1 patient synovitis villonodularis; and severe posttraumatic osteoarthrosis in 1 patient. In 18 patients axial knee deformity was noted prior to operation in the sense of valgus or varus. The continuous passive motion machine was used in the postoperative treatment of all patients. Clinically acceptable results were obtained in 90%. Wound healing complications were noted in 2 patients. Full axial deformity correction was achieved in all the patients with a full extension and flexion of over 90 degrees in the operated knees. Preliminary results after the implantation of this type of prosthesis are very encouraging and justify it's further routine use.

Adult↗

PubMed1991

[Injuries in Vojvodina 1989].

Trauma has all sociomedical characteristics and importance which line up it in the leading problems of the contemporary medical pathology. Injuries are among the first five groups of the diseases in the structure of overall outpatient's morbidity (general medicine 4.05%, occupational medicine 7.57%, pediatric medicine, 1.84% and health service for pupils 4.96%) and are a significant cause of hospitalization. Concerning the very thorough and all-inclusive follow up of all aspects of trauma it is necessary to establish the regional register of injury and intoxication.

Adult↗

PubMed1990

[Incorporation of nonvascularized auto- and allotransplanted bone into the site of bone defects].

It is generally accepted viewpoint that free bone grafts do not survive transplantation, that the incorporation of the autograft is faster and safer than the one of the allograft, and that the immunological processes disturb the process of revascularisation and reossification of the graft, although they stimulate the process of absorbtion. The process of graft incorporation into the host's bone was followed up in 8 dogs, i.e. 16 knees. In 10 knees the medial tibial condyle was replaced by autogenic implants made of patella, thickness of 6-8 mm. and fixed by Kirschner wire. The process of allograft incorporation was studied in 6 knees, where the medial tibial condyle was replaced by the donor's graft. The process of the graft incorporation was followed-up by x-ray studies and after sacrificing the animals during the interval starting from 2 months to a year since the operation had been performed, while in the allograft group the follow-up was during the interval starting from 1 up to 5 months. The obtained results point out that the incorporation of the bone grafts thinner that 1 cm happens within first 8-10 months after the operation. The process of incorporation during this period happens at almost the same speed in both groups. If there are no technical errors while implanting, practically all the grafts of this thickness will be incorporated into the host's bone, i.e. completely reosified and revascularized. The congruity of the joint and the rigidity of the fixation play the main role in the fate of the graft within the first months after the operation.

Animals↗

PubMed1990

[Degenerative arthritis of the knee joint after allotransplantation of the joint surface without immunosuppression].

Degenerative arthritis of the knee joint after resurfacing of the knee with fresh osteochondral allograft occurs frequently and was noticed a long time ago. The main causes can be: incongruity of the joint, when the allograft slips so that its surface is out of normal line, inadequate internal fixation different methods of cartilage preservation which are lethal to cartilage, broken grafts as well as immunological reaction to the graft. The experiment was conducted on 5 dogs, i.e. 10 knees. As for operated knees, the medial tibial condyle was replaced by fresh osteochondral allograft taken from the other animal, without preservation, performing precise operative technique and rigid internal fixation. These allografts were followed-up by x-raying them and after sacrifying the animals. The following-up of the development of the degenerative process continued up to 6 months after transplantation. The obtained results point out all the attitudes concerning all the other arthroplastic procedures (such as the precise reconstruction of the joint surface and the rigid internal fixation) should be respected. In spite of this, degenerative arthritis still exists in some cases as the result of immunological reaction to the graft, the process which may start within 6 months after transplantation.

Animals↗

PubMedDate not supplied

[The Institute of Surgery in Novi Sad as a trauma center--10 years' experience].

UNLABELLED: Trauma is a surgical disease and a leading cause of death in the population in the age of forties. The Institute for Surgery in Novi Sad (trauma center of the first rank) takes care of all injured people brought to the Institute either directly from the place of accident or from other centers. AIM OF THE STUDY: Retrospective analysis of the injured people treated at the Institute for Surgery in the period 1987-1996. MATERIAL AND METHODS: Multivariate analysis of the traumas from the register of the Institute for Surgery according to the trauma system elements: number of injured individuals, sex and age structure, categorization of injuries, etiology of injuries, distribution of serious injuries by regions, results obtained from the treatment of serious injuries. RESULTS: They show a global representation of all elements involved with injured people: due to moderately serious, serious and critically serious injuries 21.6% of patients were hospitalized; in the age of 29-30 years men with traumas caused on work or in traffic were predominant, while women with injuries caused by falling were predominant in the age of 60-69 years; drastically increased injuries caused by fire-arms in the period 1991-1993 were directly caused by the state of war and these injuries are still numerous; in case of hospitalized patients isolated trauma (80%) was predominant, multiple trauma was under 20% and polytrauma was registered in 5% of patients; after surgical treatment of injuries approximately 17% of patients were indicated for postoperative prolonged treatment and in intensive care unit at the Institute for Surgery; the average mortality of hospitalized patients was 5-7% but with extremely high mortality rate (< 70%) in the group of patients with polytraumas.

Adult↗