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Biomedical subjects

K Welz

Publications and source records attributed to K Welz.

At least 19 recordsLinked to original sources

[Carl Thiem and quality assurance in trauma surgery around the turn of the century].

The surgeon Carl Thiem (1850-1917) pursued forward-looking strategies of treatment in emergency surgery as early as the last turn of the century. While he made a lasting mark, especially in the form of milestones in health policy, in the region of Brandenburg, he also radiated a pioneering spirit in the development of emergency surgery throughout the entire German-speaking area of the time. For over two decades he was the editor of the monthly journal Monatsschrift für Unfallheilkunde (Monthly Journal of Emergency Treatment), which he had founded; this, together with his Handbuch der Unfallerkrankungen (Handbook of Emergency Illnesses), published in 1898, and the organization of several international congresses on emergency surgery brought him widespread scientific recognition. The results of detailed statistical surveys and extensive clinical follow-up examinations of patients suffering from fractures led Thiem in 1914 to sharply criticize the then-current methods of treating broken bones. He gave priority to function-oriented goals in treatment, as opposed to the pathomorphological criteria which at the time determined the results of treating broken bones. Thiem's socially critical appeals emphasize a purposeful stand for juster and socially tolerable laws concerning accident victims. With a high local profile and widely accepted within his field, Carl Thiem's memory will continue to be revered today.

Fractures, Bone↗

[Development of statutory accident insurance in the new German districts from the medical viewpoint].

In the five eastern federal districts of Germany the condition for organizing treatment forms of the Social Insurance for Occupational Accidents were different. In 1990 qualification of traumatologic surgeons demonstrated intensive standards and similarly positions as western Germany. On the other hand we have miserable buildings for patients and poor equipment. After two years the development of statutory accident insurance is respectable. The present situation reflects very good co-operation between western and eastern institutions, to remove some insufficiencies and to establish a sure territorial system for medical treatment.

Attitude of Health Personnel↗

[Special aspects of operative treatment for distal femoral condylar fractures].

The concept of AO condylarplate has enabled successful surgical stabilisation for severe condylar and supracondylar fractures in 58% of our patients. We analyzed 113 fractures between 1968 to 1987. Comminuted zones were fixed by special methods. In 42% we preferred reconstruction by AO condylar-buttress-plate and bridging technics. There were clear indications for cancellous bone grafts in 52.6%, for revascularisizing segmental fragments, for supporting medial cortical zones and defect areas. The analysis demonstrated the effectiveness of several operative variants in 80.8%. The results are likely to support current recommendations to the use of special stabilizing methods for difficult situations.

Bone Plates↗

[Results of treatment of multifragment and comminuted fractures of the femoral shaft in adulthood. Results of a community study].

Progress in osteosynthesis techniques has enabled successful surgical stabilisation of femur fractures with multifragment and comminuted zones. Support plating, intramedullary nailing combined with cerclage wires, and interlocked nailing have proved to stand out as osteosynthesis methods for high stability. A retrospective study was conducted into 73 medical centres throughout the GDR to analyse the effectiveness of several variants of osteosynthesis in 939 adult patients who had received surgical treatment for femur fractures with severe traumatisation of the bone. Interlocked nailing proved to be unambiguously superior to other techniques for good results and low rates of complications. This analysis is likely to support current recommendations to the effect that interlocked nailing should be definitely preferred to cope with multifragment and comminuted femur fractures.

Femoral Fractures↗

[Status of treatment and results in femur shaft fractures in the adult].

Surgical stabilisation by unambiguous principles of indication is the major purpose of the treatment of femur fractures in adults. An analysis of effectiveness is under discussion regarding various methods of osteosynthesis and their applicability to different types of cases. A comprehensive account is given in this study of methods chosen for and results of femur fracture treatment of more than 4,240 cases in 73 hospitals and wards throughout the GDR. Osteosynthesis accounts for 77 per cent of all approaches. This study, therefore, is confined to evaluation of surgical methods. The need for differentiated approaches is underlined by the results so far achieved. Particular emphasis is laid on the fact that in 85 per cent of all cases good results were obtained by intermedullary nailing.

Adult↗

[Current status of the treatment of calcaneus fractures in adults].

Today, contradictory concepts and various methods of treatment are discussed. The interpretation of a questionnaire recording 2600 calcaneus fractures collected from 51 Traumatological Depts of the GDR permits the conclusion that conservative therapy predominates. Attention is drawn to the method of functional treatment. Good results were observed with it in all types of fractures of the calcaneus.

Adult↗

[Pro and con osteosynthesis].

Today osteosynthesis of fractures has got an important position in trauma surgery. There is no contradiction between conservative and operative treatment of fractures. Every method has its strict indications. It should be remembered that the risk of infection is an instant disadvantage of every kind of fracture surgery. At present, however, osteosynthesis can not be dispensed with in the conception of modern fracture treatment.

Bone Neoplasms↗

[Impalement injuries; classification and problems of treatment (author's transl)].

Impalement injuries have to be differentiated corresponding to their position and extension. Concerning frequency the perineal region dominates. Surgery should be done as early as possible to control lesions of abdominal and/or thoracic organs and to avoid wound infection. At present the mortality rate came down to app. 10%.

Abdominal Injuries↗

[Treatment of fractures of the forearm in adults; present state (author's transl)].

Conservative treatment of fractures of the forearm is no longer in all cases the method of choice. It is only still acceptable in stable diaphyseal fractures of the radius or the ulna. In all other cases plate osteosynthesis should be performed. The interpretation of a questionnaire recording 261 forearm fractures collected from 18 Traumatological Depts of the GDR permits the conclusion that compression plating will yield the best results in cases of instable or open fractures of the forearm.

Adult↗

[Plate osteosynthesis using the support principle].

In the operative treatment of fractures there are special principles for plating by support. Osteosynthesis is indicated for comminnuted fractures and bone defects in the metaphysis. Plating for distance also is established for fractures and pseudarthroses with defects in the diaphysis. This method is especially recommended for fractures of the head of the tibia and for reconstructing the pilon tibial.

Biomechanical Phenomena↗