Biomedical subjects
Publications and source records attributed to T Stuhler.
Various screening tests provide a detailed representation of fibrous dysplasia: thermography, scintigraphy, computer tomography, scanning electron microscopy, X-ray microanalysis, microradiography and fluorescence microscopy. The stationary nature of clinical and X-ray findings contrasts with the intensive structural changes that occur. The above-mentioned methods are examined with regard to differential diagnosis.
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A case is demonstrated in which an indwelling intravenous catheter was pushed by mistake via V. subclavia and the right heart into the V. cava inf. There the catheter perforated the wall of the V. cava. The continued infusion induced a cystic retroperitoneal tumor. The puncture of this tumor was followed by a fistula that was misinterpreted as a fistula of the urinary tract.
Preparated, communicating Recessus - Bursa suprapatellaris, Recessus popliteus and Bursa musculi gastrocnemii medialis - will be compared with ganglia. The surfaces document conformity. The REM-controls show a further proof of the gangliagenesis from recessus.
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Ganglia originate from communicating recessus of joints. Frequently knee, wrist and ganglia at foot are seen. The theory of valve-mechanism will be expand with the principle of "functional stenosis". In the main the cause will be seen in the high viscosity of synovia in ganglia.
Osteons of Beagle-ulnae were calculated in growth. Controlled osteons were compared with osteons after "therapy". Stimulation was made with electro-nails system Kraus-Lechner. The mean-values of osteons after "therapy" surpass control. The fundamental question, whether induction of bone growth occurs with low frequency electromagnetism will in all probability be have to answered in the affirmative.
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Extensor tendon injuries are mostly treated by younger general surgeons. Good follow-up results in the zone 2, 3, 4 and 6 of VERDAN are observed only 6 to 17 percent (fig. 1), which may be explained by: 1. the complicated anatomy of the extensor tendon in zone 2 to 4, 2. lack of attention to handsurgical principles, 3. infections in up to 40 per cent, which appear especially in connection with extensive soft tissue damage, 4. posttraumatic arthrosis (fig. 3) caused by lesions of the finger-joints or temporary KIRSCHNER wire fixation. The highest restriction of movement is found in the finger-joint distal to the injury (fig. 2.) The degree of flexion deficit in all finger-joints always exceeds the degree of extension deficit (fig. 4). The extension deficit alone is, therefore, not a satisfactory criterion in follow-up. The use of KIRSCHNER wire fixation by the inexperienced and the adoption of conservation therapy for zones 1 and 2 cannot be recommended.
From 1917--1976 68 pelvis fractures of children (up to 14 years) were hospitalized at the department of Surgery, University of Göttingen. About 75% were traffic accidents. The lesions prefer the iliosacral joints, symphysis and the biogenic connections. Experimental compressions confirm the clinical fractures. The controls show sufficient subjective results. Because of pelvis dislocation and scoliosis controls are necessary.
The effect of induced hypercalcemia on serum gastrin concentrations, measured by radioimmunoassay, and gastric acid secretion was studied in 20 healthy subjects, 8 patients after antrectomy and gastroduodenostomy (Billroth I), 12 patients after antrectomy and gastrojejunostomy (Billroth II) and in 9 patients after total gastrectomy and esophagojejunostomy. In normal man calcium stimulates gastric secretion and gastrin release. After antrectomy gastric secretion is still stimulated by calcium without changing serum gastrin levels. After total gastrectomy basal serum gastrin concentration is further reduced; calcium does not liberate gastrin. These results show that calcium-induced gastric secretion is caused by direct action at the parietal cell level besides the gastrin release from the antrum. In man, extra antral gastrin cannot be released by induced hypercalcemia.
Dupuytren's contracture was observed in 21,6 percent of 524 patients with epilepsy. This combination is characterised by a steadily progression by relatively benign course with a consequenly low frequency of operation and rate of recurrence. Possible genetic association has to be taken into consideration, because idiopathic epilepsy is the type most frequently found with Dupuytren's contracture. In this material no correlation has been found between Dupuytren's contracture and liver disease. Diabetes mellitus and other aetiologic factor which have been suggested. The duration of epilepsy and the medication given have not been analysed.
Based on 600 arthrogramms physiologic recessus is compared with ganglion for differential-diagnostic purposes. The great variance between small and big recessus of the regio genu posterior will be demonstrated. Flexion of the knee joint favour confusion with ganglion. The radiologic and differential diagnostic valuable criteria of the physiologic recessus and ganglion is shown. Finally the characteristics of Baker's cyst as well as posterior capsule rupture are discussed.