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Biomedical subjects

B Wegener

Publications and source records attributed to B Wegener.

9 recordsLinked to original sources
PubMed2004

Medium to long-term results with the cementless threaded Acetabular Munich II type cup.

Compared to pressfit cups, little information exists about the results of screwed cups in hip arthroplasty. 51 cementless or hybrid (cemented stem) primary total hip replacements with a cementless corundium blasted titaniumn alloy threaded Aesculap Munich II type cup were examined with a mean follow up of 7.9 years. 23 of the patients were male and 28 patients were female. From these cups 22 were implanted on the right side and 29 on the left. The results were compared to 53 patients (28 male, 25 female, 29 right side, 24 left side) with the threaded Aesculap Munich I type cup, that has a smooth surface and a direct contact of bone with the polyethylene inlay. The mean follow up ws 10.2 years. The early and medium to long-term clinical and radiographic results show an encouraging improvement of the Merle d'Aubigné Score of the type II cup compared to the type I cup. Two of the Aesculap type Munich II cups had to be revised; four showed radiologic signs of loosening. In conclusion, the threaded Aesculap cup type Munich II seems to be a decisive advance in the development of threaded acetabular hip cups. The intermediate results exceed those from smooth-surface screwed rings and compare favourably with those from cemented cups and with those from cementless press-fit metal-backed cups.

Acetabulum↗
PubMed2003

Solitary enchondromas: is radiographic follow-up sufficient in patients with asymptomatic lesions?

Enchondromas are benign cartilaginous tumours and rarely transform into chondrosarcomas. Curettage is usually performed, and a low rate of complications is assumed. We analysed retrospectively data from 73 patients with enchondromas treated by curettage with respect to symptoms, therapy, complications and recurrences. All patients were treated by curettage of the tumour, in most cases followed by cancellous bone grafting. Twenty-three percent of the patients presented a complication. There were two recurrences but no malignant transformations in the follow-up period. During the same time period 29 patients with chondrosarcomas were treated, including two secondary chondrosarcomas. One had a recurrence of a benign enchondroma of the metacarpal and developed a pulmonary metastasis from a chondrosarcoma. The other was a patient with Ollier's disease who had a secondary chondrosarcoma of the radius. Malignant transformation of a solitary enchondroma to a chondrosarcoma is rare. On the other hand the complication rate of enchondroma curettage is considerable. Regular radiological follow-up of asymptomatic enchondromas may therefore be the better option.

Adolescent↗
PubMed2002

Internal hemipelvectomy and reconstruction with a megaprosthesis.

We treated nine consecutive patients by internal hemipelvectomy and reconstruction with custom-made megaprosthesis between 1990 and 1997. Four had a primary malignant bone or soft tissue tumour, one a recurrent benign giant cell tumour, three solitary metastatic bony lesions, and one a pelvic defect secondary to multiple revision procedures after total hip replacement. After a mean follow-up period of 62 (40-102) months five patients were still alive, including four of the eight patients with tumours. Three patients died as a result of the malignant disease, and one died of an infection related to the surgical treatment after 10-41 months. In two patients removal of the prosthesis was required due to infection, and six patients suffered various complications. One patient had an excellent outcome.

Adolescent↗
PubMed1997

[Patients of a crisis intervention unit 3 and 9 years after their admission].

369 patients of a crisis intervention center, treated in 1985, were seen in follow-up-studies 3 and 9 years after admission. The catamnesis was done by an open questionnaire and standardized inventories. The mean value of hospital stay was 3.98 days. Complete data were received from 144 resp. 138 persons. 9 persons died by suicide during the first three years after admission. During the next 6 years most of the patients were stabilized. Minimal effectivity and stability was observed for alcoholics and drug dependent patients.

Adult↗
PubMed1993

[Multiple drug dependence].

This study includes all inpatients of the years 1977-1988 treated for multiple drug abuse, in a psychiatric department of a general hospital in Berlin. The descriptive assessment of combined drug abuse in the last half year before admission for withdrawal treatment was the research object. 1176 persons with multiple drug abuse were admitted. The mean-value of age was 36.8 years, the duration of addictive behaviour 9.2 years and, they had 1.9 withdrawal treatments as inpatients before their admission here. On an average they took 2.91 substances simultaneously, predominantly alcohol and benzodiazepines. The third rank is occupied by combinations of analgesics, and the fourth one by heroin. Some preferred combinations with characteristic variables of their users are evaluated.

Adolescent↗
PubMed1986

[Comparison of the main diagnostic groups at a crisis intervention center].

With the present investigation of clients (admissions in 1980) of a psychiatric crisis intervention center we intended generally a description of the population and especially a characterization of the diagnostical group "psychogenic reaction" (ICD No. 309/308). That diagnostical group differs in many signs significantly from the group of alcohol and drug addicts (ICD No. 303/304). Differences to other diagnostical groups (like neurosis, personality disorders e.g., ICD-No. 300, 301, 306) we elaborated only for some factors. Predominantly we worked with a self-made open questionnaire and an objectivated test (FAPK = Questionnaire for psychosomatic disorders). As main conflict constellations of the patients we noticed personal and social isolation and relationship disorders. Our results in crisis provoking situations are in accordance with those of the life-event-research. The therapeutical consequences are discussed.

Adaptation, Psychological↗
PubMed1984

[Emergency center patients from the psychiatric and psychosomatic viewpoint].

100 patients of a surgical and internistic emergency ward of a general hospital were examined from the psychosomatic and psychiatric angle. 20 patients remained without surgical and internistic diagnosis; under this aspect, only 3% had no psychic principal sign. In 50%, psychic symptoms were seen. This leads the authors to demand inclusion of the psychosomatic-psychiatric discipline when rendering first aid, in the form of interdisciplinary co-operation.

Adolescent↗
PubMed1980

[Catamnestic examinations in a crisis intervention ward of a general hospital (author's transl)].

The article reports on a catamnestic examination of patients of a crisis intervention center at a general hospital, conducted during the period from 1.5.1977 to 31.5.1978. A total of 560 admissions was recorded comprising 492 patients. Examination was carried out via an open questionnaire, plus data taken from the hospital's care index file. In 59% of the patients, the state of crisis was relieved in the course of an average hospitalisation period of 4.2 days; in 1.23% (= 6 patients), suicide occurred after hospitalisation. 2.4% only of the treated patients were re-admitted to inpatients treatment because of mental difficulties during the period of this study. Improvement of treatment is represented by the institution of facilities of transitional treatment which make it easier to transfer the patient from the crisis-intervention ward, motivating him to participate in long-term outpatient therapy.

Adolescent↗