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Biomedical subjects

J O Ramadier

Publications and source records attributed to J O Ramadier.

64 records · Page 4Linked to original sources
PubMedDate not supplied

[Anesthesia and resuscitation in surgery for aseptic osteonecrosis in patients with renal transplants].

Aseptic osteonecrosis following renal transplantation occurs in about 20 p. 100 of cases and entails important functional consequences. 16 patients with kidney transplant and 4 patients on chronic dialysis because of previous graft rejection underwent 27 orthopaedic operations, 8 of which being hip arthroplasties. During and after the procedure the anesthesiologist had to manage with drug interaction, coagulation disorders, blood compatibility problems etc... Despite poor general condition of patients and the risk of infectious complications linked to the never interrupted immunosupressive treatment, the surgical results of our serial were good.

Adolescent↗
PubMedDate not supplied

[Bilateral symmetrical macrodactyly of the toes (author's transl)].

The authors report a case of bilateral symmetrical macrodactyly affecting the toes in a 17 year old patient. The deformity was treated by bilateral transmetatarsal amputation. After a review of the literature, the authors recall that macrodactyly is more frequently seen in the hand than in the foot. No etiological factor such as neurofibromatosis or a genetic or teratogenic agent was found.

Adolescent↗
PubMedDate not supplied

[Rotational displacement of eccentric cups cemented in the acetabulum (author's transl)].

The authors have operated on 15 hips using a total prosthesis comprising a metallic head and plastic cup cemented in the acetabulum. The acetabular component is thicker at its upper part to accommodate eventual wear in the plastic. In all cases the cup rotated through 180 degrees so that, after several months, the thicker part was situated at the lower pole of the acetabulum. In two cases, a fracture of the cup was found. The cause of this abnormal rotation can be explained by a torque action taking place at each step because of the eccentric design of the cup. This was demonstrated by a prosthesis inserted into a cadaver and tested by simulated walking. 45 kilometres of walking were sufficient to provoke a rotation of 90 degrees. Conclusions are given on the use of such eccentric cups which should be avoided.

Acetabulum↗