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Biomedical subjects

T Slongo

Publications and source records attributed to T Slongo.

At least 19 recordsLinked to original sources

[Bilateral post-traumatic acetabular dysplasia].

Traumatic disruption of the acetabular triradiate cartilage is an infrequent injury. When it occurs in early childhood, it may lead to growth changes in acetabular morphology. The morphology of this kind of acetabular dysplasia is uniform and differs significantly from that seen in classic developmental dysplasia of the hip. We present a case of bilateral post-traumatic acetabular dysplasia, which to our knowledge has not been reported. The morphology and the symptoms of impingement and periacetabular osteotomy of the hip joint are discussed.

Acetabulum↗

Report of an uncommon cluster of septic arthritis of the hip in premature newborns: three cases in a period of 3 months.

We report an uncommon cluster of this rare condition which occurred within a very short period of time in our unit. We reviewed the current literature and observed that the diagnosis is often delayed, which can have very serious consequences for the outcome. Our 3 patients have had an uncomplicated course so far and follow-up examination at almost one year was normal. A high index of suspicion for the diagnosis and early and aggressive treatment is necessary.

Amikacin↗

Unpowered scooter injuries in children.

AIM: An increasing number of scooter-related injuries is being seen in emergency department. This study was initiated to establish the demographic profile and injury characteristics of the children involved, to examine the circumstances and to suggest preventive measures. METHODS: During this descriptive cohort study, data from year 2000 were collected from all children below 16 y of age who were seen in the emergency department of a Swiss hospital following an accident with an unpowered scooter. Between January and September, information regarding age, gender, injury sustained and medical management was reviewed. From October to December, data were collected prospectively. A questionnaire was sent (January-September) or handed out personally (October-December) to the patients, to gather information on the circumstances surrounding the injury and the use of safety equipment. RESULTS: Thirty-six children (15M, 21F) were included in the study. The mean age was 8.8 y (range 3.0-15.8 y). The most common injuries involved the face (including six children with dental injuries) (44%) and the head (19%). Thirteen children (36%) (6M, 7F) sustained a fracture. The majority of injuries resulted from falls forward or to the side, caused by a loss of control or collision with an obstacle. Only one patient used any safety equipment. CONCLUSION: Accidents with unpowered scooters can produce severe injuries in children. Although the majority of patients sustained minor injuries (e.g. lacerations, contusions), more serious injuries can occur. The head and face were the most vulnerable. The use of protective gear, especially helmets, may reduce the number and severity of injuries. Parents, doctors and healthcare workers should be aware of the causes and prevention of injuries caused by this rapidly growing recreational activity in childhood.

Bicycling↗

Congenital pseudarthrosis of the ulna and radius in two cases of neurofibromatosis type 1.

Two children with neurofibromatosis type 1 who presented at birth with congenital pseudarthrosis of the ulna and radius are described. The patients were treated with broad resections. As a consequence, the forearms were reduced in length. The osteotomies were stabilized in one patient first with endomedullary nailing and then with a free vascularized fibular graft. In the second patient the osteotomy was stabilized by external fixation. Using these techniques, rapid and excellent healing and normal function were achieved. In contrast to the lower extremity, reduction of the length of the forearm can be accepted to a certain extent. If necessary, an extension osteotomy can be performed at a later date.

Bone Transplantation↗

Quadruplication of the ureter in combination with a large ureteral cyst.

A newborn female was found to have a quadruplication of the ureter: four proximal, slim ureters opened into a large ureteral cyst and a distal monoureter opened into the bladder. Only five cases of ureteral quadruplication have been reported in the literature, one of which presented with identical pathology. These two cases may have been caused by similar, unidentified abnormal embryonic development.

Cysts↗

Slipped capital femoral epiphysis: early mechanical damage to the acetabular cartilage by a prominent femoral metaphysis.

On the basis of intraoperative observations in 13 consecutive adolescents (14 hips) with slipped capital femoral epiphysis (SCFE), we found that when the anterior femoral metaphysis was level with or extended past the epiphysis, it caused labrum and cartilage damage. As a result of an impingement between the metaphysis and the superomedial acetabular rim, the labrum revealed erosions, scars or tears. Further jamming of the metaphysis into the joint damaged the adjacent acetabular cartilage, varying from a partial- to a full-thickness cartilage loss. In all patients, the femoral head cartilage was intact; no avascular necrosis was present. Our findings suggest that arthrosis in SCFE can be triggered by early mechanical damage of the acetabular cartilage.

Acetabulum↗

Growth disturbances after injuries of the proximal tibial epiphysis.

Proximal tibial epiphyseal fractures are very rare. Partial growth arrest of the physis can cause important axial malalignment in the frontal or the sagittal plane or both, with subsequent shift of the weight-bearing axis onto the injured compartment of the knee joint. To detect the exact extent of the deformity, comparative radiographs of the contralateral side in two planes using long films as well as standing whole leg orthoradiographs are desirable. Accurate measurements in our series of six patients revealed deformities in two, which required secondary surgical correction.

Adolescent↗

Tumoral calcinosis and atypical juvenile dermatomyositis: case report.

Tumoral calcinosis is a rare, benign calcification of soft tissues in periarticular areas. It can manifest as an isolated disease or as part of an underlying disorder. We report a case of a 6-year-old girl who presented with tumoral calcinosis of her left knee in association with atypical juvenile dermatomyositis. Finally, we discuss operative and non-operative treatment strategies of tumoral calcinosis in children and adults.

Adult↗

[Fractures near the femur head in children and adolescents].

13 patients (1981-1991) between 1.5-15.5 years (average 10.2 years) with Delbet I-III fractures were analysed of the incidence of avascular necrosis. Only one (type II fracture) of our 13 patients was associated with a severe complication (Ratliff type I) of an avascular necrosis of the femoral head. This satisfactory result may be explained by our concept of immediate open reduction and minimal internal fixation of the displaced fractures.

Adolescent↗

[Treatment of subcapital humerus fracture with the Prévot nail].

Displaced subcapital fractures of the humerus are difficult to manage due to the specific anatomical and biological conditions in the proximal humerus. With respect to the fracture type and extent of displacement of the humeral head and the tuberosities the concepts for treatment remain controversial. A large spectrum of recommendations for the treatment of unstable subcapital fractures are known ranging from conservative treatment, open reduction and internal fixation using different implants to the primary prosthetic replacement of the humeral head. Recent results from basic research emphasize the importance of sound tissue viability for undisturbed fracture healing and influence today's strategies in fracture management. Minimal exposure of the fracture area, indirect reduction techniques and a minimal but optimal biomechanical use of implants can help to avoid some of the possible (and partially iatrogenic) complications. Fixation of subcapital humeral fractures by intramedullary pinning seems to provide sufficient stability without damaging the vascularity of the fracture fragments leaving intact in addition the soft tissues around the shoulder. The treatment of proximal humeral fractures by the use of Prévotnails is presented in this paper and some possible problems of the method are discussed.

Aged↗

[Prévot's method of elastic-stable endomedullary fixation--an ideal method for the management of juvenile shaft fractures].

We report on the experiences on the internal fixations of long bones which has replaced the non operative method of extension over the last years in our clinic. Although the short-term results of the internal fixations are very convincing the follow-up of these patients will give us further informations on its validity. The well defined aim is to find the treatment with the best chance of restitution combined with the lowest risk-rate.

Adolescent↗

[The external fixator for children: an ideal method?].

In the years 1985-1988, 3037 fractures in children were treated in the Department of Paediatric Surgery at the University Children's Hospital, 245 of these were operated. The "Fixateur externe" was used in 30% of the 75 fractures of the diaphysis. Our experience shows that this "Fixateur externe" appliance can be used in practically any age group. Recently the stable fixation of fractures is also being practised more extensively in children; either with plate fixation, use of elastic intramedullary fixation or with a "Fixateur externe". We are of the opinion that the "Fixateur externe" should feature more extensively in the overall treatment strategy.

Adolescent↗

[Surgical correction following shaft fractures in childhood and adolescence: indications].

Fractures of the shaft of the long bones in children rarely cause deformities requiring surgical correction. The many natural mechanism of correction prevent permanent anomalies of rotation, length and axial deviation. Our experiences confirm the views expressed in the literature. Of 3800 children with fractures treated in the last 5 years, 539 were located in the diaphysis. Of these only one required an operation to correct a permanent deformation. In spite of the rarity of deformations, one should be aware of the limits of tolerance of the initial and the resulting secondary deformation, in order to better assess the correct initial treatment. In the management of fractures in children a knowledge of the development and physiological evolution of the axial, longitudinal and rotational deviation is of primary importance. In this way unnecessary errors leading to premature operative corrections can be avoided.

Adolescent↗

[Experiences with the early treatment of osteogenesis imperfecta].

Between 1973 and 1988 twenty children with osteogenesis imperfecta were treated in the Department of Paediatric Surgery at the University of Berne, Switzerland. Our initial experience with the first 15 children, who had virtually no treatment during infancy and early childhood showed that they later developed severe soft tissue and skeletal deformities. Since resulting contractures and curvatures of the long bones are difficult to correct, we changed our therapeutic approach. Traditional therapy in OI was limited to the correction of bony malformations. Considering the fact, that the different elements of the locomotor system are part of a functional entity, we began early treatment combining physiotherapy and surgery.

Achilles Tendon↗

Use of cultured keratinocytes in the treatment of severe burns.

A 6 1/2-year-old child was admitted to the emergency ward for third degree burn injuries representing 40% of body surface. Shock therapy was first applied. After débridement and in a series of operating sessions hands were grafted with full-thickness skin and most other wounds were covered with mesh grafts. On the 14th day after admission a piece of approximately 5 cm2 split thickness scalp skin was used to expand the keratinocytes by cell culture techniques according to the method of Rheinwald and Green (7). After 20 days 4 sheets of cells of first subculture, each 10 cm in diameter, representing a surface of approximately 300 cm2, were implanted on the front of the left thigh, which was burnt third-degree deep. Light microscopy of punch biopsies from mesh grafted and keratinocyte implanted sites taken 5 months after grafting showed a well differentiated epidermis overlying scar tissue. The following conclusions were drawn: Autologous keratinocytes did take on a third degree wound. No basic difference was observed neither clinically nor histologically between mesh-grafted and keratinocyte-implanted sites. The epidermis formed by keratinocyte implantation lacked pigmentation but presented an aesthetically better appearance than the mesh-graft treated sites. Given the scarcity of donor sites and the results obtained by implanting keratinocyte cultures, this latter technique may be resorted to in any extended and deep burn injury.

Burns↗