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Biomedical subjects

P Gallinaro

Publications and source records attributed to P Gallinaro.

At least 19 recordsLinked to original sources
PubMed1993

Screw sockets: survivorship analysis after eight years.

A comparative analysis of the radiographic results of 111 screw sockets (65 tapered and 46 hemispherical cup sectors) was made to evaluate both their behaviour over a period of time and the validity of their use today. The follow-up was performed on average 42 months after the implant. Overall survivorship shows a high risk of failure during the fourth year and a greatly increased rate of failure after the sixth year. Comparison of the survival curves of the two types of acetabular component revealed no significant differences. The two types considered were, however, of different sizes: the implanted taper sockets were on average 6.6 mm larger than the comparable hemispherical cup sector acetabular components, thus involving a greater loss of acetabular bone.

Bone Screws↗
PubMed1991

Biocompatibility and osteogenetic characteristics of new biocompatible glasses.

A fibre-shaped glass with qualities of biocompatibility and biodegradation could be promising for reconstructive bone surgery in orthopaedics and neurosurgery. New highly biocompatible glasses, originally made by the Italian Group of Study on Biocompatible Glass, are obtained both in cylinder and fibre shapes due to their original chemical composition (Glassfiber). This is the only glass which is also available as a continuous filament. Hydrolytic in vitro and in vivo tests demonstrate that these glasses present both good biocompatibility and adjustable biodegradation in relation to their chemical composition. The advantages of bioactive glass also being available as a continuous filament are suggested.

Animals↗
PubMed1991

Total knee replacement: surgical technique and instrumentation.

The surgical technique and instrumentation of four systems of total knee replacement, two with intramedullary and two with extramedullary alignment systems, are discussed. The differences between the instrumentations, their advantages and disadvantages, and the basic "philosophy" of each technique are compared in four "crucial" operative stages, determinant for the final result: the anteroposterior and distal femoral osteotomies, the tibial osteotomy, and the mechanical axis. In expert hands the two systems are equally reliable. In our experience, the extramedullary system with the tensor is more versatile. The stages are more dependent on the surgeon than on the instruments, and the tensor enables the surgeon to control and balance the level of osteotomy and the soft-tissue release every time. The intramedullary femoral alignment system seems simpler: each step is a direct consequence of the previous one, except the first step, which is, of course, entrusted to the experience of the surgeon. The fact that each stage is predetermined may reduce the chances of error in less skilled hands.

Femur↗
PubMed1990

Experience with bipolar prosthesis in femoral neck fractures in the elderly and debilitated.

Eighty-eight bipolar Bateman hip endoprostheses for medial femoral neck fractures were implanted. The average age of the patients was 75 years. Intrahospital results proved the morbidity and mortality rates to be well within acceptable limits. Thirty patients were followed during periods of 12-74 months (median, 33 months). According to Charnley evaluation, mobility was excellent and very good in 20 patients (86%). Good function was present in 63% of patients. The majority of patients belonged to category C as defined by Charnley. Mild pain was present in 19 patients (63%); in only two cases, involving severe rheumatoid arthritis, pain was clearly related to sinkage. Radiographically, no visible protrusion or socket wear was present. Periarticular ossification occurred in 19 patients, but this did not impair function.

Aged↗
PubMed1977

Etiology, pathogenesis and classifications of knee fractures.

Fractures of the knee include fractures of the lower end of the femur, upper end of tibia, and patella. The term articular fractures has been avoided in this text because it would exclude supracondylar fractures of the femur, fractures of the tibial spines, and epiphyseal separations in which the articular surfaces remain uninjured. By agreement with the other rapporteurs to this Congress, we excluded from our review separation of the apophysis of the tibial tubercle, fractures of the tibial spines, and osteochondral lesions.

Accidents, Traffic↗