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Biomedical subjects

J Legaye

Publications and source records attributed to J Legaye.

29 records · Page 2Linked to original sources
PubMed1992

[Rupture of the metallic lining in bicentric hemi-arthroplasties of the hip. Apropos of 3 cases].

Three cases of rupture of outer shell of biarticular prostheses used for femoral head fractures are reported. Insufficient thickness of this metallic surface is observed at the pole of the cups. The biomechanical forces inducing the rupture of such a defective surface are the result of mobility of the acetabular horns with weight-bearing. This 3-dimensional behavior of the acetabulum may explain the individual variations of mobility of the floating cups.

Acetabulum↗
PubMed1991

[Fracture-avulsion of the anterior tibial tuberosity in adolescents].

A rare case of a 14-year-old girl with an avulsion-fracture of the tibial tuberosity is reported (type III-A). This lesion is described mainly in boys. The authors explain the classification of the different types of avulsion fracture according to the epiphyseal development of the upper end of the tibia and the stage of maturation at the time of trauma.

Adolescent↗
PubMed1990

[Y-shaped cartilage in the development of the normal pelvis and in congenital hip dislocation].

The authors use a radiographic approach to demonstrate the primary role of the triradiate cartilage in hip development in the normal child and in congenital dislocation of the hip. The orientation of this cartilage with respect to the dysplasia gives an indication as to the prognosis of the CDH. The acetabular angle is of lesser interest with respect to the orientation of the triradiate cartilage on the pelvic radiographic examination.

Cartilage↗
PubMed1989

[Limb lengthening in children and osteogenesis using the technics of Wagner and Ilizarov and their modifications].

Different methods of lower limb lengthening are reviewed, related to delays in strengthening and type of callus: Wagner's technique (5 cases), decortication 3 weeks before osteotomy (1 case), and Ilizarov's technique (10 cases on 8 tibiae and 6 femurs). In 5 cases, decortication with osteotomy-closure and waiting 2 weeks before beginning lengthening, was performed. This was carried out at 1 mm/day. The type of fixator is unimportant. This technique allows a restitution of the tubular bone structure in 3 or 4 months in a periosteo-cortico-medullary callus.

Adolescent↗
PubMed1988

[Extraction of a foreign body from the elbow using arthroscopy].

Arthroscopy of the elbow is now a good diagnostic and therapeutic method, particularly for the removal of loose bodies which are frequently found in the elbow, whatever their etiology. The authors have investigated the advantages and disadvantages of different sites of entry and the technique of removal of loose bodies in five cases. The technical ease of the procedure and the simplicity of the after-care makes it the method of choice in this condition.

Adolescent↗
PubMedDate not supplied

Contributing factors for osteogenesis in children's limb lengthening.

A progressive bone lengthening procedure according to the Wagner and Ilizarov technique and our own protocol was performed on 24 children (32 bones). Wagner's (transverse midshaft osteotomy, intraoperative lengthening of 1 cm and postoperative distraction of 1 mm/day) led to a marked reduction in osteogenic capacities. Patients operated on according to the Ilizarov technique had osteogenic reactions in the medullary cavity and on the posterior aspect of bone segments. Our own method, which included bone decortication, 5-7 days of neutral fixation without distraction, led to massive bone production in the medullary canal and around the bone segments. Rigid osseous bridging was present as early as 3 months after surgery. Neither the type of external fixator nor the location or shape of osteotomy had any specific influence on this massive bone reaction. Osteogenesis in limb lengthening is thus closely related to surgical management.

Bone Lengthening↗