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Biomedical subjects

A Renner

Publications and source records attributed to A Renner.

At least 73 records · Page 4Linked to original sources
PubMed1980

[Ganglion in the ulnar nerve sulcus as a cause of ulnar nerve irritation].

A ganglion at the cubital tunnel is a rare cause of ulnar nerve compression. Wrong or late diagnosis may be common. In one of the two described cases the diagnosis was made promptly, so that the early operation was followed by full restitution. In the other patient, at first the site of compression was supposed to be at the wrist. Only at the second operation was the ganglion in the cubital tunnel detected and removed. The result was unsatisfactory because motor loss was permanent.

Adult↗
PubMed1980

[Intra-articular block of the metacarpophalangeal joint of the index finger].

A case of rare intraarticular block of the metacarpophalangeal joint of the index finger is described. This block occurs exclusively in the metacarpophalangeal joint of the index finger in young persons as a result of trauma which forces the joint into severe flexion and strong ulnar deviation while maintaining normal articular relationship.

Adult↗
PubMed1980

[Tendolysis after flexor tendon surgery].

This review concerns itself with experimental and clinical activities which will prevent adhesions. Reference is made to work which indicates the usefulness of tendolysis including among others, the work of BOYES, BUNNELL, DUPARC, FETROW, GREULICH, ISELIN, MICHON, NEHRING, NIGST, PULVERTAFT, VERDAN, WILHELM, WRAY. The rationale, timing, indications, operative technique, use of hydrocortisone, follow-up care, and the results are reported. The experience of the Hand Surgery Division of the National Institute for Traumatology in Budapest is analyzed. Between 1966 and 1975, 1886 patients with tendon injuries were treated. In 1469 flexor tendon injuries, 2060 operations on tendons were performed. The late results of 136 tendolyses were analyzed at different times primarily according to the zone of injury and to the type of primary operation. The results were graded according to the evaluation plan of BUCK-GRAMCKO. It is established that tendolysis is a difficult and big undertaking which should only be considered by surgeons with adequate experience in hand surgery. With these additional operations, the results of tendon repairs can be improved substantially.

Hand↗
PubMed1979

Correlation of plasma non-conjugated oestriol and plasma cortisol in late human pregnancy.

The present study concerns the diurnal variations of free plasma oestriol and their relationship to maternal plasma cortisol in late human pregnancy. Four pregnant women volunteered for the study. According to the half-life time of oestriol blood was drawn at intervals of 30 and 60 minutes, respectively, over a period of 24 hours. Free oestriol was measured by radioimmunoassay and cortisol was quantitated by a protein binding method. All patients exhibited a circadian rhythm for free oestriol with higher values in the evening and early night (14.4 +/- 3.7 ng/ml) than in the morning (11.3 +/- 2.3 ng/ml, P less than 0.001). The course of oestriol followed plasma cortisol in a significant negative correlation (r = -0.566, P less than 0.001). During the period of low cortisol concentration oestriol levels demonstrated the phenomenon of episodic secretion. The results suggest that the maternal adrenals predominantly regulate the circadian rhythm of free oestriol by a negative feed-back action on the foetal hypothalamus.

Circadian Rhythm↗
PubMed1979

[Bridge transplantation in "no man's land"].

From 1968 to 1976, 89 flexor tendon injuries were reconstructed with bridging (mini-)-tendon grafts. This technique was also applied to injuries in "no-man's land". The results were better than with traditional tendon grafts. According to the criteria of BUCK-GRAMCKO there were very good and good results in 65% as compared to 51% with traditional tendon grafting. The method is recommended only for experienced hand surgeons.

Hand Injuries↗
PubMed1979

[Microscopic surgery (author's transl)].

Author having reviewed the past of Hungarian hand surgery is dealing with the development and present state of microscopic surgery. The preconditions from point of view of the National Institute of Traumatology for realizing microscopic surgery in this country are summarized.

History, 20th Century↗
PubMed1979

[Corrective osteotomy in malalignment of healed fractures of the metacarpal and phalangeal bones].

As a result of improper immobilization in extension following phalangeal and metacarpal fractures, rotation and deviation deformities can occur. The functional disturbance and aesthetic deformities can be corrected with an osteotomy through the proximal phalanx of the metacarpal. The technique and results of this correction osteotomy are described. Prevention of these malunions by proper positioning at the time of primary treatment is emphasized.

Finger Injuries↗
PubMed1978

[Ganglion in the ulnar nerve groove (author's transl)].

Two cases of a rare localisation of ganglion is reported in this paper. A ganglion in the ulnar nerve presented by complete loss in ulnar nerve function. Attention is drawn to the importance of early diagnosis, and to the fact, that in cases of ulnar nerve lesions of unknown origin tumors in the ulnar groove must be considered.

Adult↗
PubMed1978

Ultrastructural investigation of the human hand after tendon and motor nerve injury.

Specimens of the affected muscles obtained during reconstructive surgery 4 to 16 weeks after injury of the tendon or of the motor nerve of the human hand were studied. After tenotomy the most serious lesions were displayed by the contractile elements which were homogeneous brittle and atrophied, and disintegrated independently of the functional units. The number of mitochondria decreased, the sarcoplasmic reticulum accumulated and the red and white muscle fibres could not be distinguished. After motor nerve injury the motor end plates were completely destroyed and Wallerian degeneration appeared. The contractile elements atrophied and were brittle. The number of mitochondria and the sarcoplasmic reticulum decreased, the sarcoplasmic glycogen content was higher than normal, and often the cell nuclei occupied a central position.

Adult↗