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Biomedical subjects

K Bläsius

Publications and source records attributed to K Bläsius.

27 records · Page 2Linked to original sources
PubMedDate not supplied

[Cementless cup anchorage in hip endoprostheses. Comparative study of 3 cup systems with titanium surface].

A wealth of commercially available hip endoprotheses makes it difficult for the practitioner to choose the best implant for each individual case. In a multi-centre study, in which 22 hospitals took part, a cementless stem was used 1172 times and was combined with 3 different cementless cup components. The follow up period ranged from 1-8 years. In 321 cases the spherical Mecring cup, in 208 cases the spherical CLS-expansion cup and in 643 cases the conical Weill-ring was implanted. The predominant indication for the THR was primary coxarthrosis (767 patients). Evaluation of clinical results was based on the Merle d'Aubigné score. Good or excellent results were found in 82% for the Mercring, in 85% for the Weill-ring and in 91% when the CLS-expansion cup was used. Whereas 88% of the patients with the Mecring or Weill-ring had minimal or no pain, 94% of the patients had minimal or no pain when the CLS-expansion cup was implanted. Aseptic loosening was found in 1.25% for the Mecring and 1.5% with the Weill-ring. In the CLS-expansion cup group, 2 cases with radiological signs of loosening were seen, but neither patient required revision. The CLS-expansion-cup with the press fit system shows better medium follow-up results in this study, than the Mecring or Weill-ring systems.

Acetabulum↗
PubMedDate not supplied

[CLS multicenter study--8-year results].

The principles of proximal fixation of cementless endoprostheses is established already. This theory was the subject of the present multi-center study of 22 clinics. Between 1984 and 1992 all 1830 patients with an uncemented CLS press-fit stem had a clinical and radiological follow-up examination and computer documentation. The evaluation of the clinical results are based on the Merle d'Aubigné score. In 91% we found a good or excellent result. For the remainder of patients (9%) with a score less than 14 each case has been especially analysed. The incidence of femor component loosening was less than 1% within the average follow-up time of 2.5 years. The medium-term results with the uncemented CLS press-fit stem confirmed the idea of proximal load induction on the femur.

Adult↗
PubMedDate not supplied

[Save the joint? Replace the joint? Long-term results and considerations in the treatment of femur head necroses in adults].

UNLABELLED: 65 patients with necrosis of the femoral head (not caused by a trauma) in 102 hip joints were examined at an average of 9.7 years following first operation: 1st: 30 joints underwent intertrochanteric varus angulation osteotomy (follow up 11.6 y). RESULTS: 12/30 clinically not sufficient, 13/30 radiologically worse, only 2/30 improved range of movement. 2nd: 35 hip joints were treated using an artificial hip replacement (follow up 9.1 y): 77% got loose at an average of 5 years requiring 39 follow-up operations. 3rd: 5 arthrodesis were performed (follow up 11.4 y). 60% delayed nor non bony union. The results indicate a general osteopathy overlapping the size of osteonecrosis, and causing a lot of complications. Various therapeutic concepts should be considered with respect to radiological stage and age of the patient. The results of joint saving operations depend on the ability of the femoral bony structures to react sufficiently.

Adult↗
PubMedDate not supplied

[Possibilities of therapy of femur fractures following placement a of total hip endoprosthesis].

The postoperative fracture of the femur following total hip arthroplasty ranks third in occurring complications and the number of such cases is increasing. Most of the patients are elderly and multi-morbid and the fractured femur had undergone previous operations. Using the literature our own experience in 15 cases and applying a fracture classification we make suggestions for treatment of the different fracture types. Considering the patients overall health it's possible to obtain good results in the operative therapy which was necessary in most cases of these femur fractures.

Aged↗
PubMedDate not supplied

[Etiology and pathogenesis of osteochondrosis dissecans of the knee joint].

We report a clinical examination series on 72 knees with osteochondritis dissecans. The O.D. very often affected men employed in construction. An illness on both knees was usually found in younger patients. In those cases the osteochondritis was more often located in an area of lighter bearing. In cases involving only one knee the illness was confined to the area of heavy bearing. In patients seeking therapy up to 10 years after initiation of symptoms we found 50% to have a corpus librum. This rate rises significantly after 10 years to over 90%. In 7 of 10 cases we found a hyperlipoproteinaemia.

Adolescent↗
PubMedDate not supplied

[Clinical and computer tomography results following Chiari pelvic osteotomy].

22 hips in 20 patients operated with Chiari's pelvic osteotomy between 1970 and 1980, were examined with clinical methods and computerized tomography. With computerized tomography one is surely able to see if the femoral head is completely covered with pelvic bone or not. It was completely covered in 36.4% only. Especially the dorsal part of the femoral head often was not. We report on the influence of former and contemporaneous intertrochanteric osteotomy on the result. The influence of the degree of covering of the femoral head upon absence of postoperative pain, motility of the hip, Trendelenburg's sign, and contentment of the patient is discussed.

Adolescent↗
PubMedDate not supplied

[Shortening diclofenac therapy by B vitamins. Results of a randomized double-blind study, diclofenac 50 mg versus diclofenac 50 mg plus B vitamins, in painful spinal diseases with degenerative changes].

The use of nonsteroidal anti-inflammatory drugs (NSAID) such as diclofenac for treatment of degenerative rheumatic disorders of the lumbar spine is of great significance in orthopedic practice. Clinical studies have shown that concomitant treatment with vitamins B1, B6, B12 and diclofenac provides more efficient pain relief than treatment using diclofenac alone. This study was undertaken in order to determine whether the duration of treatment with diclofenac for lower back pain can be shortened by adding B-vitamins to the therapeutic regimen. From September through December of 1986, 256 patients participated in a multicenter, controlled, randomized double-blind trial which compared the clinical efficacy of diclofenac (50 mg) with a combined therapy of diclofenac (50 mg) and vitamins B1, B6, and B12 (thiamine nitrate, pyridoxine hydrochloride, and cyanocobalamine, resp.; in dosages of 50 mg, 50 mg, and 0.25 mg, resp.). Patients were treated with 3 X 1 capsule daily for a maximum of two weeks, having the option to terminate participation in the trial after 1 week in the event of total pain relief. The data of 238 patients were able to be included in the evaluation. 29 patients opted to discontinue therapy due to remission on symptoms. Nineteen (65.6%) of these patients belonged to the combined therapy group, the other 10 (34.4%) having taken diclofenac alone; this difference is statistically significant (p less than 0.05). An important aspect in the evaluation of therapy was the patient response regarding the improvement of painful symptoms which, in addition to their subjective feedback, was reflected in the test results of the "Hoppe Pain Questionnaire (HPQ)." All parameters used as a measure of pain relief indicated superior results with the B-vitamin supplemented therapy when compared with results obtained with diclofenac alone. Moreover, after 3 days of therapy the "sensory" pain factor "sharpness" improved significantly. Undesirable side-effects were documented with 39 patients, 14 of them having discontinued therapy for this reason. No statistically significant difference could be determined within this group with regard to therapy. The study results document the positive influence of B-vitamins on painful symptoms and indicate that less NSAID is needed for pain relief when combined with B-vitamins.

Clinical Trials as Topic↗