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Biomedical subjects

T Vizkelety

Publications and source records attributed to T Vizkelety.

At least 19 recordsLinked to original sources

[Results with endoprostheses and bone transplantation in surgery for bone tumors].

Seventy six bone tumor patients were treated by limb salvage operations at the Orthopaedic Department of the Semmelweis Medical School in Budapest from 1981 through 1991. The bone defect was reconstructed with endoprostheses in 25 cases and with bone grafts in 51 cases. The mean follow-up period of 72 patients was 51 months (min. 12 months). There were local recurrences in 11% of the patients. Two complications occurred at the tumor endoprostheses, which functional rating were excellent or good in 75%. The most common complications at the bone grafting were infection (9.8%), fracture (11.8%), which did not influence the end result, and nonunion (9.8%) occurring often in homografts of resection-arthrodesis during the chemotherapy. This complications could be managed in all but two cases without loss of the limb. The bone grafts performed acceptable (excellent or good) functional result in 66% of the patients. Authors suggest reconstruction of the bone defect with bone grafting in cases of semimalignant and low malignant tumors, prefer, however, tumor endoprosthesis implantation in high malignant bone tumors which need chemotherapy.

Adult

Limb lengthening with simultaneous correction of the deformity.

In congenital malformation of the limbs the shortening of the extremity appears frequently together with its deformity. With Ilizarov's apparatus the limb may be lengthened simultaneously with the correction of the deformity. In spite of the fact that the use of the apparatus is rather complicated and complications are frequent, in 75 cases out of 102 excellent, in 23 good results were achieved. The various indications and results are demonstrated in 4 cases.

Adult

[Limb lengthening with simultaneous correction of deformities].

In congenital malformation of the limbs the shortening of the extremity appears frequently together with its deformity. With Ilizarov's apparatus the limb may be lengthened simultaneously with the correction of the deformity. In spite of the fact that the use of the apparatus is rather complicated and complications are frequent, in 75 cases out of 102 excellent, in 23 good results were achieved. The various indications and results are demonstrated in 7 cases.

Adolescent

[Spondylolysis and spondylolisthesis in the young].

Authors think the early recognition of the spondylolysis and spondylolisthesis in young age important, as for the further life of the patients (sport, military service) adequate councels have to be given. In mild or more serious lumbago in adolescents, appearing mainly on load, other developmental anomalies, easy to be recognized, call attention to the presence of spondylolysis and spondylolisthesis. Considering the factors of risk the development of the disease and its tendency may be followed on Roentgenogram of exact projections.

Adolescent

Surgical treatment of the hip in cerebral palsy.

Hips are affected generally in CP but in favourable cases we can prevent dislocation by adductor tenotomy performed in time (530 cases). Posterior transposition of the origins of the adductor muscles is performed if the patient walks with inwood rotated inferior extremities (105 cases). In the treatment of real subluxation and valgus deformity the open tenotomy of adductor muscles and femur osteotomy with derotation and varisation were used (180 cases). We accomplish open reduction in frank dislocation (35 cases). In such cases it is often necessary to shorten the femur. Also normal acetabulum is found in elder children.

Cerebral Palsy

[Reoperations in the management of clubfoot].

The results of 118 operations for club-foot are assessed, of these 57 were reoperations. It is stated that the relapse is most often the consequence of the insufficient primary operation and the relapse and the residual deformity are the more serious the more insufficient was the primary operation. The severity of the deformation is defined first of all by the position of the calcaneus. In milder cases the soft tissue operation only may be successful, in the more severe cases bony operation (Evans' operation in this series of the authors) has also to be performed. After their own primary operations reoperation was in 24 per cent necessary. The number of the bony operations was half of the soft tissue operations. The second and rarer case of the relapses was that the foot proved to be even originally rigid, not redressable, "rebel". First of all in these cases may multiple reoperations be necessary and the transposition of the anterior tibial muscle is also useful. The club-foot with a major dominant adduction deformity of the tarsometatarsal joint is thought to be a separate entity and it is corrected with tarsometatarsal capsulotomies or serial metatarsal osteotomies.

Clubfoot

[Results following total laryngectomy at the Budapest Clinic of Head-Neck surgery].

The data on 356 laryngectomies during a 12-year period were analysed retrospectively. The operations were divided into three groups: group I, laryngectomy alone; group II, laryngectomy and secondary neck dissection; group III, one-stage laryngectomy and radical neck dissection. Most patients had advanced disease (stage III and IV: 54.5% and 23.9%, respectively). Supraglottic and glotto-supraglottic tumours were commonest (39.6% and 36.8%, respectively). The results of palpation, fine-needle biopsy and histology of the lymph nodes are compared. The mean survival time for the three groups was 53.4, 42.7 and 29.8 months, respectively, and the 5-year survival rates were 61.9%, 32.0% and 30.8%, respectively.

Carcinoma, Squamous Cell

Desmoid tumours of the extremities.

The authors report seven cases of desmoid tumors of the extremities. A tumour less than a few centimetres in size is best removed by wide local excision. Large growths should also be excised, but efforts should be made to preserve the vessels and nerves, since malignant transformation and metastases do not occur. Irradiation therapy should be considered for tumours which are surgically inaccessible. The problems of differential diagnosis between a desmoid tumour and a fibrosarcoma are discussed.

Adolescent

The treatment of Perthes' disease.

The results of surgical and conservative treatments of a total of 235 patients with unilateral Legg-Calvé-Perthes disease are reported. Results of the two modes of treatment with those of an untreated patient group are presented. The long periods of follow-up have shown that surgical treatment yielded better results than the weight-relief of the hip by a splint. Following femoral osteotomy, the course of the disease became more rapid. Based on their experiences, authors recommend the surgical treatment of Legg-Calvé-Perthes disease.

Adolescent

[Development in the treatment of congenital dislocation of hip (author's transl)].

Authors review the development in the treatment of congenital dislocation and dysplasy of hip and demonstrate the results with various methods. Results with treatment according to Lorenz (1040 cases) were unsatisfactory because of frequent occurance (66.3 percent) of osteochondritis. The treatment with Frejka cushion (360 cases) did not improve basically the results. Pavlik's strapping, especially when started under 1 month of age gave excellent results (3156 cases). In operative treated the results of 332 Colonna operations were unsatisfactory because of consecutive deformation of the hip and restriction of movements. Open reduction with varisation derotation osteotomy (474 cases) provided good acetabular development especially in cases where articular cartilage and upper limbus could be saved. Salter's operation is successful when proper indications are considered, but should be performed only after 1--2 years of observation of the acetabular development in non improving cases. The Chiari procedure can improve the weight bearing surfaces in cases of steep acetabular roof flat acetabulum and consecutive subluxation. In 557 cases of varisation derotation osteotomy subcapital coxa valga occured frequently. Basic principle of treatment remains prevention, early recognition and treatment after birth.

Child