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Biomedical subjects

J Butel

Publications and source records attributed to J Butel.

At least 55 records · Page 3Linked to original sources
PubMed1981

[The mechanical properties of devices used for the fixation of femoral neck fractures (author's transl)].

The authors have studied the mechanical problems of internal fixation of femoral neck fractures, both from the theoretical and experimental point of view. They have tested stability of several types of fixation according to the obliquity of the fracture line. Three types of strain have been applied to fractured dried bone. Fixation by three parallel screws seemed to give the most stability. The authors conclude that, with this type of fixation, early weight-bearing can be resumed by patients with fractures of Pauwels type I and II, but weight-bearing is still dangerous in type III.

Biomechanical Phenomena↗
PubMed1979

[Fascicular nailing of the femur and tibia. 14 years' experience. Report of 275 cases (author's transl)].

The use of the fascicular four-pin nail has been introduced to correct certain inadequacies revealed by the rigid nailing according to Kuntscher's method; made up of four tiny pins soldered at each end, it fits the curve of the bone; its elasticity allows a much greater resistance to repeated strain as compared to other nails; an experimental study which compares the stability of fresh femurs cut then nailed according to different methods, reveals a definite superiority for the fascicular nail. The clinical use for 14 years (275 nailings among which 92 cases werefresh closed fractures of the femur) confirms that such a method provides the advantage of nailing without reaming as well as the possibility of immediate weight bearing ambulation for most patients (75% in the cases of resh femur or tibia fractures).

Biomechanical Phenomena↗
PubMed1979

[Is conservative treatment justified in the case of advanced infantile tuberculosis of the hip? (author's transl)].

In the case of advanced children tuberculosis of the hip, the authors propose a more active treatment than Wilkinson's, which is less conservative. A local curetting is important, and if the acetabulum reveals a geodic aspect, this surgery may be done by pelvic approach. After an orthopedic traction, the surgical method is more efficient and permits better flexibility of the hip, only to be noticed under general anesthesia. After surgery, this traction must be prolonged for a several months and kinesitherapic mobilisation must be associated. The excellent result, both clinical and radiographic obtained by the authors seems to justify the use of the above mentioned method.

Acetabulum↗
PubMed1978

Effect of continuous jejunal perfusion of elemental and complex nutritional solutions on pancreatic enzyme secretion in human subjects.

Pancreatic secretion of lipase and chymotrypsin in response to elemental diets and a crushed food homogenate was studied in normal subjects. The solutions were infused at constant flow rates at the ligament of Treitz with polyethylene glycol as a nonabsorbable marker. A triple lumen tube was used, enabling collection of secretions at 35 and 70 cm from the infusion point. The results show that a crushed food homogenate has a greater stimulative effect on pancreatic enzyme secretion than the elemental solutions and that this can be directly related to its greater nitrogen content. The osmolality of the infused solutions does not appear to be important. The relative merits of the solutions tested and total parental nutrition in reducing pancreatic enzyme secretion are discussed.

Adolescent↗
PubMed1978

[Surgery of retrospinal disinsertion of the posterior cruciate ligament of the knee (author's transl)].

Thus in all cases of an isolated tear of the posterior cruciate ligament, with an interglenoid fragment, whe fixation by a screw or clip was carried out, we obtained good results by simple surgical treatment. In spite of the small size of this series, the results were in perfect harmony with those of other authors, which justifies surgery. In three other cases of a tear of the posterior cruciate ligament, orthopedic treatment was adopted for various reasons; comparison of the results was definitely in favour of surgery owing to the duration of plaster immobilisation and physiotherapy in the first group and the functional sequelae with chronic invaliding laxity in the cases treated conservatively.

Follow-Up Studies↗
PubMed1976

The value of endoscopic retrograde opacification of biliary-pancreatic ducts in icterus.

Important progress in the last few years in fiberscopic instrumentation for digestive endoscopy has made possible duodenoscopy with catheterization of the papilla to obtain retrograde biliopancreatic contrast x-rays. Up to now the only possible way to explore biliary ducts, in icterus, was surgically. This new method makes their study possible without any surgical intervention and with a simple neuroleptanalgesia. It is most advantageous in icterus where clinical tests, laboratory tests and other complementary examinations such as laparoscopy do not help to determine the cause. This examination is not devoid of dangers, particularly of the risk of cholangitis and pancreatitis and therefore certain technical precautions are necessary, e.g., immediate surgical intervention in case of organ obstruction and well defined indications.

Cholangiography↗