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Biomedical subjects

H Weigand

Publications and source records attributed to H Weigand.

At least 19 recordsLinked to original sources
PubMed1996

Intravenous vs. oral iron supplementation during autologous blood donation.

Prior to hip replacement surgery, 197 patients (123 women, 74 men, age 18-86 years) donated up to 4 units of blood once weekly if their hemoglobin concentrations exceeded 11.5 g/dl. They received an oral (200 mg iron sulfate daily) or intravenous (200 mg iron saccharate or 125 mg iron gluconate in 500 ml 0.9% NaCl weekly) iron replacement. Correlating the number of donated blood units with the form of iron substitution, no effect of i.v. iron was seen in men. Women who received i.v. iron substitution were able to donate 4 units of blood more often than with oral iron.

Administration, Oral↗
PubMed1993

[Therapy of humeral head fracture. Open reposition and fixation with PDS pins].

Seven patients who sustained a displaced fracture of the capitulum humeri had been treated by surgery, using a volar approach and internal fixation with PDS pins. The advantage of this method is that by using the volar approach, the displaced capitulum could be reduced properly in its exact anatomical position. The internal fixation with PDS pins was solid enough to allow early postoperative movements. A second operation to remove any material was not necessary. In all cases the clinical and x-ray results have been excellent.

Adolescent↗
PubMed1993

[Percutaneous nucleotomy].

Percutaneous nucleotomy (PN) is a non-operative, percutaneous, intervening, radiologically controlled method for the treatment of non-sequestrated herniated discs. The diagnostic criteria are CT, MR, functional myelography with myelo-CT, discography and disco-CT. Of the indication for this procedure is strictly confined to patients pretreated in the conventional way, this method yields good or very good results in about 75-80% of cases. PN is performed under local anesthesia and under fluoroscopic control. Of the technical parameters are strictly observed, PN is considered a low-risk method. The rate of infection is lower than 1%. Even though there are no long-term results yet, the positive results we have observed for 1 to 6 years suggest that this method will become an established method of treating herniated discs, as there is little discomfort for the patient.

Adult↗
PubMed1992

[Clinical relevance of whole body skeletal scintigraphy in multiple injury and polytrauma patients].

The provision of care to polytraumatised patients is a particular diagnostic and therapeutic challenge. The examination data of 162 polytraumatised patients were retrospectively investigated to determine the diagnostic gain provided by skeletal scintigraphy with 99mTc-HMDP. It was found that every fresh fracture (with the exception of fractures to the skull) led to a scintigraphically clearly demonstrable remodelling reaction within ten to 14 days. The timing of the examination was of decisive importance for the information yield. Not until about the tenth to 12th day did also those fractures that showed a delayed uptake show adequately signal-intensive areas of uptake in the scintigram. Typical examples were additional fractures of the spine and pelvis in patients immobilised by fractures of the limbs. At this time, with the aim of skeletal scintigraphy, an additional fracture was found in half of all patients, and was subsequently verified radiologically. Additional diagnostic information is independent of the ability of the patient to cooperate. This was of particular importance in the case of the very severely injured and old patients. Skeletal scintigraphy can be employed with equal efficacy to reliably exclude bone injuries. Thus, skeletal scintigraphy if of particular significance in the determination of the extent of bone injury in polytraumatised patients. This applies in particular to the preparation of an expertise. Thus, as in the case of staging of malignomas, the additional performance of bone scanning twelve to 14 days after traumatisation should form part of routine care offered to polytraumatised patients.

Adolescent↗
PubMed1990

[Temporary postoperative protection of the anterior cruciate ligament with transarticular wire rope].

This article describes an operational method for the temporary protection of the anterior cruciate ligament after acute or late ligament reconstruction. In line with the course of the anterior cruciate ligament a wire rope is transarticularly implanted and fixed with a screw each at the femur (proximally) and at the tibia bone (distally). This easily performed method permits both the healing of the ligament lesion while preserving the original ligament length and the execution of an early functional exercise therapy.

Bone Screws↗
PubMed1990

[Percutaneous nucleotomy: an alternative to chemonucleolysis?].

In this study, we compare two groups of patients treated with chemonucleolysis (CNL) (101 patients) and percutaneous nucleotomy (PN) (100 patients) for sciatic pains. Indications for treatment were drawn along similar lines. The patients treated with CNL originated from the Department of Neurosurgery, University Hospital in Mainz and underwent treatment between 1983 and 1987. The second group with PN were from the teaching hospital in Wiesbaden and were treated during 1987 and 1988. Postoperatively, 80% of the CNL group showed good results. However, postoperative progress was slow with back spasms as a common uncomfortable side effect. In 72% of the patients in the PN group, successful treatment was demonstrated with results occurring almost immediately after treatment.

Adult↗
PubMed1989

Percutaneous nucleotomy: a new interventional radiological technique for lumbar disk removal.

Percutaneous nucleotomy or the Onik-procedure is described as a new interventional radiological technique. Our own results in 84 patients are perfectly correlated with other surgical and microsurgical techniques with and without endoscopic control. Percutaneous nucleotomy seems to be very valuable. Precise indications and technique under fluoroscopic control and documentation may ensure 70 to 80% good and excellent results. In comparison with other interventional treatments percutaneous nucleotomy is safe, relatively simple and without major complications. In the near future percutaneous nucleotomy will have a certain place in the treatment program of radicular back pain.

Adult↗
PubMed1989

[The effect of inactivity-induced osteoporosis on the scintigraphic image of bone lesions of the wrist].

In addition to its established oncological indications the sensitivity of bone scintigraphy is of steadily increasing significance in traumatology. Inactivity-induced osteoporosis plays a major role during the immobilization period in the plaster cast. In the region of the joints remodelling intensity may reach such a high level that the non-injured bone shows a higher rate of accumulation than the fracture. This process already begins between the third and fourth week of immobilization. The highest uptake is found after fracture of the scaphoid bone at the end of twelve weeks of immobilization. Control scintigraphies at intervals of several days are indicated to differentiate between various clinical conditions (pseudoarthrosis, activated osteoarthrosis, algodystrophy in case of doubtful x-ray results).

Carpal Bones↗
PubMed1984

[Classification of fractures of the proximal end of the humerus following prognostic and therapeutic aspects].

The classification of the proximal humeral fractures according to the four-segment concept of Neer has proven to be very useful. It not only considers the fracture itself but also lesions of the soft tissue. Adapting Neer's concept we propose a modified classification of the proximal humeral fractures which we believe is clearer and more practicable. This classification is illustrated by means of drawings and typical roentgenograms. The description of the different fracture-types includes the mean characteristics such as fragment-displacement, status of the rotator cuff and blood circulation to the head segment.

Fractures, Open↗
PubMed1984

[Conventional roentgen diagnosis of the proximal end of the humerus].

Rarely the spectrum of conventional radiographic studies of the proximal humerus resp. shoulder joint is used in its full potential. This frequently results in erroneous interpretation. Five essential X-ray examinations are presented with respect to technique and diagnostic value.

Diagnosis, Differential↗
PubMed1984

[Anatomy and roentgenology of the normal and injured acetabulum].

Assessment of injuries of the hip joint requires a thorough knowledge of the radiological and anatomical conditions and topography of the acetabular region. The authors attempt to present an introduction into the x-ray anatomy of the healthy and of the traumatized acetabulum by means of a juxtaposition of schemes and x-ray films and of pictures of the skeleton.

Acetabulum↗