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M De Pellegrin

Publications and source records attributed to M De Pellegrin.

8 recordsLinked to original sources
PubMed2005

[Subtalar screw-arthroereisis for correction of flat foot in children].

UNLABELLED: Minimally invasive subtalar screw-arthroereisis has gained interest in the correction of flat feet in children. Between 1990 and 2004, this technique was used on 152 children, 74 bilaterally, for a total of 226 feet. There were 82 boys and 70 girls, with an average age of 10.6+/-1.9 years. The results were good in 95.4% of cases, whilst there were complications in 4.6%. For well corrected feet, 55 screws have now been removed, on average 2.9 years after implantation. The indications for such treatment are: talipes calcaneovalgus, which develops into a flat foot (spontaneous correction can be expected to 10-11 years), juvenile flat foot with medial protrusion of the talar head and complete absence of the longitudinal arch, symptomatic talipes calcaneovalgus with pain on the insertion of the tibialis posterior tendon, a minimum age of 6 years if a correction with conservative treatment does not show any improvement; a maximum age of 12-13 years considering that there always has to be a manual reducibility of the deformity. CONTRAINDICATIONS: posttraumatic flat foot, congenital flat foot, stiff flat foot, age over 13 years.

Adolescent↗
PubMed1996

Early ultrasound diagnosis of developmental dysplasia of the hip.

The results of ultrasound diagnosis of developmental dysplasia of the hip (DDH) in several studies of 1,000 and 1,332 consecutive patients, performed according to Graf's method from 1984 to the present, are presented. Prior to 1984 the authors used radiography exclusively in suspected cases of DDH, however, the change from radiography to ultrasonography resulted in significant improvement in the ability to diagnose and treat DDH. Different standard methods of treatment have been developed for the management of each morphological type of the newborn's and infant's hip. Ultrasound is more sensitive than clinical assessment for diagnosing DDH since it detects the dysplastic morphology of the hip when Ortolani's test is negative. Instability can be demonstrated directly. The success of treatment of DDH depends on the time of diagnosis the early diagnosis obtained by ultrasound screening can significantly improve the results of treatment.

Hip Dislocation, Congenital↗
PubMed1995

[Persistent coxalgia in the child. The value of magnetic resonance].

This study was aimed at assessing the Magnetic Resonance (MR) features of persistent hip pain in children. Twenty-six patients aged 1.6 to 15.2 years (mean: 6.5 years) were clinically selected for the study; at clinics, all patients had persistent hip pain after 10 days' therapy. All patients were examined with radiography, US and MRI at 0.5 T. SE T1-weighted sequences, with and without fat suppression (FS), SE T2-weighted and gradient echo (GE) T1-weighted-like (T1*) sequences were acquired on the coronal plane. Slices were 5 and 3 mm thick on SE and GE T1* sequences, respectively. Morphology and signal intensity of epiphysis, growth plate and metaphysis were prospectively studied with MRI. Clinical and/or imaging follow-up (3 months) was the reference standard in our study. Final diagnoses were: no evidence of alteration (n = 3), transient synovitis (n = 6), rheumatic fever (n = 3), Perthes' disease (n = 7), Meyer's dysplasia (dysplasia epiphysealis capitis femoris, DECF) (n = 2), early slipped capital femoral epiphysis (n = 2), incomplete fracture (n = 1), extraarticular cause of pain (muscular abscess, osteomyelitis) (n = 2). In 23 of 26 patients MRI confirmed clinical, radiographic and US findings. MRI was particularly helpful in making an unquestionable diagnosis in the other 3 cases; in a patient with suspected slipped capital femoral epiphysis MRI revealed an incomplete fracture, in a patient with suspected Meyer's dysplasia MRI revealed early Perthes' disease and finally in a patient with suspected transient synovitis MRI revealed Perthes' disease. To conclude, MRI allows the condition causing persistent hip pain to be assessed and accurately depicted, integrating clinical, radiographic and US findings and in some cases also changing diagnosis and therapy.

Adolescent↗
PubMed1992

Morphological or functional criteria in evaluation of the newborn hip?

Classifying the infant hip as normal or dysplastic before the stage of radiological significance, in other words during the first three months of life, has always been trusted to functional maneuvers causing clinical signs. From the results it is possible to deduce if the hip morphology is normal or somehow altered. In other words, because insufficient radiographic significance makes it impossible to directly assess the "morphological" criterion, diagnosis of the state of the hip is carried out using an indirect "functional" criterion. In contrast to radiographic imaging, ultrasound screening is already significant in the first weeks of life; it is therefore now possible to obtain real images of the infant hip earlier than it was possible using radiography. This eliminates the need for symptomatic evidence of dislocation. As a result, the "functional" indirect criterion used up till now for early diagnosis of infant hip can today be replaced by a direct "morphological" criterion. This innovation is not without epidemiological consequences, and this must be taken into account in order to rationalise between the opposing risks of over or under estimating the incidence of congenital hip dysplasia.

Age Factors↗
PubMed1991

Ultrasound screening for congenital dislocation of the hip. Results and correlations between clinical and ultrasound findings.

The author reports the findings of clinical and ultrasound screening for congenital dislocation of the hip in 1000 consecutively examined newborns. This study found that medical history and clinical signs do not always guarantee diagnosis of congenital hip dislocation. The disease can in fact be present even in the absence of clinical signs, including the Ortolani click sign. Ultrasound is a safe and reliable diagnostic tool which should be used together with clinical examination in the screening of newborns for congenital dislocation of the hip.

Female↗
PubMed1988

The personalized hip prosthesis.

The authors discuss the general concept, method of use and first clinical results obtained with a "personalized" femoral component of a hip arthroprosthesis based on the computer-graphic processing of measurements obtained from radiography and CT scan. This prosthesis is considered to be innovative as compared to traditional cementless prostheses.

Computer Graphics↗
PubMedDate not supplied

[Potentials of the echographic documentation of hip epiphysiolysis].

The results are presented of a study on patients affected by hip joint epiphyseolysis. The sonographic examination was performed using a unit with a linear 5 MHz probe; oblique scans were obtained, along the axis of the neck of the femur. Typical US findings are described, namely a small step corresponding to a positioning defect of the cartilage between head and neck of the femur and dilatation of the infracapsular space due to the presence of intra-articular fluid.

Adolescent↗