[Urachus cancer--a rare malignant form of urachus abnormality].
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Adenocarcinoma, Mucinous↗
Biomedical subjects
H D Fux
Publications and source records attributed to H D Fux.
[Surgical and conservative therapy of fractures of the acetabulum--indications and results].
Between 1975 and 1983 38 patients with a fracture of the acetabulum were treated - 28 patients were operated upon, 10 patients were treated conservatively. 26 in 28 patients treated operatively and 8 in 10 patients treated conservatively could be checked up. 3 of the cases treated operatively could not be evaluated, as the operation had been realized less than two years before. Following an accurate indication for the operative treatment 14 in 23 patients proved an efficient osteosynthesis. In 5 in 8 cases treated conservatively good results were obtained. In aged patients and in certain types of fractures of the acetabulum, especially in comminuted fractures, conservative treatment is still justified.
Acetabulum↗
[Defective shaft positioning in medullary nailing as a result of play of the nail--a biomechanical analysis].
The influence of the nail wall thickness on the stress distribution is shown for the AO-nail as well as the Küntscher-nail. The quality of the analytical solution is proved by demonstrating that the presence of the slot in the nail does not shift the bending stresses merely. The gap between nail and bone is shown to be responsible for misalignments in the fracture.
Biomechanical Phenomena↗
[Diagnosis, treatment and results of surgically treated fresh exterior ligament ruptures of the upper ankle joint].
Among 355 recent ruptures of the fibular ligaments which had been operated in seven years - by altogether 3413 traumas of supination and of distorsion - 271 patients have had a follow-up examination. A reduction of the mobility was found in 9% of the cases, a clinically demonstrable opening of the ankle was found in 11% of the cases. 11% of the cases specified complaint by burden. 95% of the operated patients attended sporting activities. The opening of the ankle was the same as against the other side in 79% of the cases - proved by radiological examination; there was a slight increased opening of the ankle compared with the non-operated ankle in 15% of the cases, an increased opening of the ankle was found in 6% of the cases. Subjective complaint and clinical and radiological findings were taken into consideration of the opinion of the results. We found good up to very good results in about 90% of the cases. The treatment of the recent rupture of the fibular ligaments only can consist in a combined suture including a following cast - in agreement with other authors; nevertheless an isolated rupture of the anterior fibulotalar ligament does not compel to operate all cases.
Adolescent↗
[Plate fracture--a finite element for the calculation of notch tension around differently shaped plates].
A hole in a plate loaded by bending induces notch stresses in it's surrounding. This stress amplification depends on the shape of the hole. In the present paper this effect is studied by use of the Finite Element Method systematically. It was found that longer holes induce lower notch stresses than circular holes. Some tendency to find the optimate hole shape with lowest stresses is shown. Following this way the danger of plate failure by cracking may be reduced. The shape of the cross-section of the plate was fixed during this considerations.
Biomechanical Phenomena↗
[Lateral femoral neck fracture as a fatigue fracture].
We report about a stress fracture of the lateral neck of femur of a 51 years old sportsman which was operated with an angled blade plate 130 degrees. Stressfractures of the femur are very uncommon. Pathogenetic factores are biomechanical changes or reactions of the bone system caused by repeated excessive mechanical stresses which lead to change of microcrystalline structure of the anorganic components of the bone and, if stress continues, to fracture after on initial fissure.
Alanine Transaminase↗
[Effect of the slot on the failure of medullary nails by buckling and bending loads].
The influence of the localisation of the slot in intramedullary femoral nails is considered experimentally with respect to a possible new accident. It was found, that a ventral slot gives best behaviour of plastic deformation as well as in the load-displacement-curve. If the region of the slot is loaded by compression, great plastic torsion and buckling effects can be seen.
Accidents, Traffic↗
[Pancreatic pseudocysts. Treatment and results].
179 operations were performed for pseudocysts of the pancreas between 1960 and 1982. Basing on this experience the various methods of surgical treatment and the corresponding indications are discussed, and their advantage and disadvantage comparatively represented. In the treatment of very small cysts we suggest an expecting attitude, their statement must be controlled. In case of surgical treatment the enteroanastomosis in the form of a pancreatocystojejunostomy is supposed to be the best alternative.
Humans↗
[Biomechanical studies of bone treated with intramedullary nailing, with special reference to possible axis deviations].
The effect of a misalignement of a nailed bone on the stress distribution in the cross section is shown theoretically. Also for pure axial loading of the bone a superposed bending due to the misalignement produces large tension stresses as well in the nail as in the bone, when the fracture is not healed. After healing the stresses in the nail and in the bone are reduced striking. The removing of the nail does not increase the stresses in the bone significantly.
Biomechanical Phenomena↗
[Theoretical studies on stress protection in fractures treated by osteosynthesis].
Using a simple model geometry the effect of stress protection in a bone caused by combination with a metal plate is studied. It is found that no global stress protection exists in any case. The stresses in the bone can be higher than in the homogeneous bone without any reinforcement. Therefore, a consideration of any special type of implantation should be done.
Biomechanical Phenomena↗
[New aspects of secondary fracture healing during intramedullary nailing. Biomechanical analysis].
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Biomechanical Phenomena↗
[The endoesophageal intubation--a favourable palliative operation of malignant stenoses in the esophagus-cardia-region? (author's transl)].
131 patients with malignant stenoses in the esophagus-cardia-region were palliatively treated with an endoprosthesis. The procedure in these patients of an average age of 65.5 years is described. The average in patient time is 22 days. The postoperative mortality is 22.9%. The complications specific for the operation method are dislocation of the prosthesis, perforation of the esophagus, bleeding and occlusion. 74.4% of the patients subjectively considered the operation successful.
Adult↗
[Surgical therapy of benign obstructive jaundice (author's transl)].
The Mirizzi syndrome is the cause of one-third of all cases of benign obstructive jaundice; the therapy is cholecystectomy. Cholangiography is indispensible, manometry and choledochoscopy optional. Choledocholithiasis occurs in 50%. First, the stones are washed out and a Fogarty catheter is used, followed by spoon and forceps. Stenoses of the papilla are mostly dilated; therefore, transduodenal sphincterotomy in fibrotic stenoses should be used for impacted stones and suspected carcinoma of the papilla. The goal is definitive therapy during the first procedure, preserving anatomy and physiology; endoscopic sphincterotomy should be used for the second operation if possible.
Adolescent↗
[Surgery for rectum carcinoma in the very aged (author's transl)].
There are no principal restrictions concerning surgery of the large bowel in the very aged. Report on 212 patients more than 75 ys. old, who had to undergo surgery for rectum-carcinoma. Results on morbidity and lethality and considerations about the quality of life in the remaining short time of the old patients life are referred. There is no borderline of age for operations of palliative nor curative intention in large gut surgery of the aged to be accepted. Instead one should follow the simple rules of tumor surgery, where there is an absolute indication for radical surgery if there are no general nor local contraindications on the tumorectomy.
Age Factors↗
[Treatment of meniscus lesions: personal results].
We examined 167 patients 10-14 years after meniscectomy to investigate the dependence of the frequency or arthrosis on operative technique. The relationship between the first clinical signs of meniscus lesion and the time of operation is discussed. The frequency and severity of post-operative alterations is considered in connection with age of the patient at the time of operation. We agree with other authors that the late results in patients under 20 years of age are clearly worse than those in adult patients. The long-term results shown radiological alterations in 72%; however, the functional late results are good or very good in nearly 84%.
Adolescent↗
[Splenic rupture. Diagnosis, clinical aspects and therapy].
It is reported about 73 traumatic ruptures of the spleen in a period of 19 years. The most frequent cause for rupturing were traffic accidents. The most important diagnostic procedure was peritoneal lavage, a rapid and well-aimed method. Therapy of choice is splenectomy. Prognosis depends on the time from accident to operation as well as on the severity of accompanying injuries. The course and cause of lethal courses are summarized. Ten patients who died in the postoperative phase, had polytraumatic injuries with three of more injured organs.
Adolescent↗
[The perforated gastroduodenal ulcer. Clinical aspects and diagnosis as well as treatment and results].
Reviewing our cases from 1960-1978 an increasing rate of perforation in gastroduodenal ulcers is registered. The perforation-rate of all treated ulcers is 17%. The most important data of anamnesis and clinical findings are analyzed. The diagnosis was correct preoperatively in 93,5%. The diagnosis has to be established as soon as possible, as the prognosis depends on surgical therapy in due time. General state, duration of anamnesis and the severity of peritonitis are criteria for deciding on suture of the perforated ulcer or resection therapy. Both--suture and resection--show identical late results, if indication was correct. The lethality in patients with a perforated ulcer is high and depends on duration of perforation, age and general state of the patient as well as severity of peritonitis. In our collective lethality was 26%. The good early results after resection therapy are depending on the selected collective and on the fact, that resection therapy is performed under better circumstances than suture.
Abdomen↗
[Peritoneal lavage for the early diagnosis of intraabdominal injuries in blunt traumas. Personal results].
Peritoneal lavage has been found to be a simple, uncomplicated method of examination providing much information in cases of blunt abdominal trauma. It permits decision to start surgical procedures in adequate trauma at short notice and is performed routinely at our clinic in patients suffering from craniocerebral trauma, even in the absence of clinical symptoms of intraabdominal lesions. The advantage of the method is little need of time, personnel and surgery as well as the fact that it can be applied also by relatively unskilled doctors and does not really require a specialist. The precision of the method is high. An important factor for successful application is the use of sufficient quantities of a lavage solution.
Abdominal Injuries↗