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Biomedical subjects

S Weller

Publications and source records attributed to S Weller.

At least 127 records · Page 7Linked to original sources
PubMed1983

[Spongiosa plug for closing the medullary cavity. A technical variation in the implanting of total hip prosthesis].

A modification and the technical details for the implantation of total hip prosthesis is reported. In order to improve stabilisation of the femoral shaft component of the endoprosthesis and to prevent the progress of bone cement also in the distal femoral part of the marrow cavity, the intramedullary cavity is blocked with a bone cylinder prepared from the resected femoral head. Using a special instrument, this bone block is introduced into the intramedullary cavity before filling up the proximal femur with bone cement. Bone cylinders can be prepared and preserved in a bone bank for use whenever necessary.

Bone Transplantation↗
PubMed1982

[Non unions of the humerus shaft (author's transl)].

The clinical evaluation of 121 cases of non union of the humerus shaft shows that 46 of these occurred after conservative and 75 after operative treatment. The main failures could be found after conservative treatment by traction methods. Operative treatment by intramedullary splinting did not achieve sufficient stability. The high rate of non unions after plate osteosynthesis is caused by basic technical faults in nearly all cases. The number of postoperative nerve palsy is remarkable. All cases could be healed by means of proper plate osteosynthesis after decortication combined with cancellous bone grafting in 12 atrophic non unions. The high rate of non unions of the humerus shaft gives occasion to reflect upon the correct indications for fracture treatment. From our point of view a more conservative attitude should be required.

Adolescent↗
PubMed1982

[External fixator in the prevention and treatment of infections (author's transl)].

Although postoperative infection constitutes a serious complication after osteosyntheses of closed fractures and in the course of open fractures, application of the known principles permits the adaption of an optimistic attitude towards treatment. Stability of osteosynthesis preferably with external fixation, open-wound treatment with regular control of the wound, in special cases suction-irrigation drainage, local application of PMMA beat chains and short-term, high-dosed systemic antibiotic therapy after antibiogram are amongst the most important points to be taken into consideration.

Adult↗
PubMed1982

[Problems of fresh rupture of the anterior cruciate ligament].

The importance of the anterior cruciate ligament as a part of the central pivot and the necessity of reconstruction in cases of fresh rupture is pointed out. In 400 arthroscopies of the knee joint we found 69 old ruptures of the anterior cruciate ligament. This number shows that a rupture of the anterior cruciate ligament is often not diagnosed early. In 28 fresh cases of knee joint trauma with haemarthrosis and without clinical or radiological instability arthroscopy was performed within 7 days after trauma. There was a fresh rupture of the anterior cruciate ligament in 20 cases. Haemarthrosis was the leading clinical sign in all cases of fresh ruptures.

Arthroscopy↗
PubMed1982

[Indications, technic and results of autogenic bone transplantations].

The results of autogenous bone grafts to reconstruct defects created by fractures, pseudarthrosis, osteotomies and tumor-like lesions were analyzed in 397 cases. In the different fields of indication the grafts were repaired in approximately the same time and incidence. Stabile conditions at the site of defect are of utmost importance. Mostly the grafts were taken from the iliac crest and there the 0.3% incidence of postoperative hematoma is low. For a solid repair of the defect the grafts should not only fill the gap but also bridge the defect from fragment to fragment.

Bone Cysts↗
PubMed1982

[Arthroscopic studies of pedicled autogenic tendon grafts for the replacement of the anterior cruciate ligament].

Combined knee ligament instabilities with injury of the anterior cruciate ligament need reconstruction of the anterior cruciate ligament as a central pivot. Our investigations show that after reconstruction with pedicle autogenous tendon grafts, a viable transplant does occur if certain technical principles are taken into account. The surviving transplants show typical fiber structure and synovial vessels. Tension was tested by clinical draw-forward sign and a hook.

Arthroscopy↗
PubMed1981

[Treatment results of comparative study using polyurethane synthografts (author's transl)].

Indication for synthografts is given in open wound treatment as well as in the treatment of infected wounds prior to grafting. Clinical examination of two different synthografts (Epigard and another synthograft) with regard to development of a granulation tissue and cleansing of contaminated wounds in 33 cases. Clinical examinations demonstrated less adhesive power and easier detaching of the other synthograft compared to Epigard; prolonged application of these two materials showed earlier wound debridement and better conditioning effect of Epigard connected with less secretion and better epithelisation. Short application in fresh wounds showed no great difference in granulation tissue except the more secretion under the other synthograft. In our opinion Epigard must be seen as a real synthograft, the other material as a sterile wound dressing.

Adult↗