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Biomedical subjects

B Courtois

Publications and source records attributed to B Courtois.

At least 91 records · Page 5Linked to original sources
PubMed1985

[Apropos of 87 dislocations of total hip prostheses].

Eighty seven dislocations were seen in 1571 consecutive total hip replacements, mostly performed through a posterior approach. Nine occurred immediately after operation and most of the remainder within 5 weeks. In 26 cases further dislocation occurred, and in 11 patients another operation was required. The 87 dislocated hips have been compared with the remaining 1484. Factors predisposing to dislocation included revision operations, the experience of the surgeon and proper reconstruction of the abductor musculature. When the hip was deemed unstable at the end of an operation, dislocation occurred on 18 occasions out of 20 such cases. The position of the components in the dislocated hips was compared with that in 100 stable prostheses chosen by random sampling. A vertical acetabular prosthesis, and retroversion of the acetabular and femoral components all favoured dislocation. In 331 replacements with a 22 mm diameter head 29 dislocations were seen (8.7%), whereas in 168 replacements with 32 mm heads, 5 dislocations occurred (2.9%).

Hip Dislocation↗
PubMed1985

[Current treatment of mandibular fractures in a general hospital center. What is the role of osteosynthesis with miniplates?].

Treatment of mandibular fractures has raised passions among supporters of the miniaturized screw plate and partisans of steel wire bone suture combined with inter-maxillary blocking. This report deals with current attitudes towards therapy. Surgical techniques are summarized, the different indications for miniaturized screw plate outlined, and other simple methods confirmed as being effective described. Based on statistical analysis of cases treated over a period of 8 years, results of treatment of mandibular injuries are reviewed, advances in therapy discussed and the various indications outlined. The use of the miniaturized screw plate appears to provide an undoubted contribution to maxillofacial surgery, but it does not supplant other therapeutic procedures. The consensus of opinion at the present time appears to have become established for therapy of mandibular fractures, confirmatory evidence being supplied by data in recent published literature.

Adult↗
PubMed1985

[Transverse fracture of the 2nd sacral vertebra with neurological signs. Apropos of a case].

The authors report a case of transverse fracture of the second part of the sacrum with neurological signs. Whilst such a lesion would appear very rare, associated involvement of the sacral roots is very common. Recovery of the neurological deficit syndrome is hazardous. A review of the literature fails to provide the basis for a defined programme of management.

Adolescent↗
PubMed1984

[Gangrenous cellulitis of the face. Apropos of a case].

Gangrenous cellulitis of the face of dental origin had a very abrupt onset, spread rapidly in spite of treatment and led to severe pleuropericardial complications. The outcome was favorable after repeated thoracic surgery. Preventive therapeutic measures for these major accidents are discussed, following a detailed report on the case presented and treatment modalities applicable, fatal outcomes still being possible in 1984 in spite of progress in therapy.

Cellulitis↗
PubMed1982

[A case of an accessory soleus muscle].

The authors describe a case of accessory soleus muscle they have seen. It caused the development of a painful swelling on the medial side of the lower third of the leg with progressive equinovarus deformity of the foot. The upper attachment of the accessory muscle was in front of the normal muscle and distally was attached to the inner aspect of the calcaneus. The case was treated by transferring the accessory tendon to the tendo Achillis. 7 other cases reported in the literature are discussed in detail.

Achilles Tendon↗
PubMed1982

[59 operations for removal of hip prosthesis. Comparison between simple removal and coaptation].

The authors have studied fifty-nine patients in whom a total hip prosthesis had been removed for various reasons. In forty-five cases the greater trochanter was inserted into the acetabulum and the position maintained by external fixation. In fourteen cases the prosthesis was simply removed and traction applied for several weeks. Forty-one patients were available for follow up study. The results were identical as regards pain. The residual stability was better in cases of trochantero-pelvic penetration but residual mobility was better after simple removal. The latter procedure should be performed in cases of acetabular destruction, in advanced age or in cases where the insertion of a new prosthesis can be anticipated later. Healing of draining sinuses is related to the extent of tissue excision and the removal of all cement.

Adult↗
PubMed1980

[Chiari's pelvic osteotomy in adults. 35 cases (author's transl)].

Between 1968 and 1978 the authors have performed 35 Chiari's pelvic osteotomies in adults ; 25 cases reviewed after a more than one year follow-up. The operation is a relatively major one, and complications are not uncommon. Carried out in adults for sequelae of hip dislocation in childhood, with or without arthrosis, it relieves pain remarkably well and improves walking distances but has little effect on hip mobility. Pelvic osteotomy may also give satisfactory results in some advanced forms of arthrosis, provided hip mobility remains sufficient (70 degrees flexion or more).

Adolescent↗
PubMed1980

[Ambulatory treatment of congenital dislocation using a harness to maintain the hip in hyperflexion (author's transl)].

Eighteen children aged between zero and seven months have been treated by a method using Scott's harness to maintain the hips in hyperflexion. Twenty one hips were subluxated. In two cases, the method was inadequate and the hips had to be treated by progressive traction. In one case osteochondritis developed. In other cases the treatment was successful. The technical details of this technique are given.

Female↗
PubMed1979

[Effect of 2-ketogluconic acid synthesis on the exopolysaccharide production in a Rhizobium meliloti strain].

Two categories of carbon substrates are defined for Rhizobium meliloti: the first favours the synthesis of exopolysaccharides (fructose belongs to this category) while the other is not suitable (glucose belongs to this category). With fructose, resting cells synthesize polysaccharides during more than 100 h and this synthesis is at its best in aerobic conditions at 30 degrees C. With glucose, 2-ketogluconic acid accumulates and rapidly stops the synthesis. The method used to stop this acidification allows with glucose a synthesis which can be compared to the one obtained with fructose.

Culture Media↗
PubMed1975

[A strain of amaril virus isolated from Aedes africanus in the Ivory Coast].

The yellow fever virus has been isolated from a pool of Aedes africanus caught on men in a region situated between forest and savannah near Touba, in the Ivory Coast. This isolation, occurring at an interepidemic period, proves for the first time in West Africa, the part played by this mosquito in the transmission of the yellow fever virus.

Aedes↗