Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 13 (1989), S. 13-16 
    ISSN: 1432-5195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les ligaments croisés du genou ont été réséqués avec leurs insertions osseuses au cours d'arthroplasties totales du genou réalisées sur douze sujets atteints de graves lésions d'arthrose ou de polyarthrite rhumatoïde. Les ligaments ont été étudiés sur le plan histologique et biomécanique, et dix spécimens provenant d'adultes sains ont été utilisés comme contrôle. On a mis en évidence des différences significatives de la résistance et des propriétés visco-élastiques des ligaments entre ceux des patients arthrosiques et les autres. Les ligaments des genoux rhumatoïdes présentaient une résistance nettement plus faible comparativement à ceux des genoux arthrosiques. L'arthroplastie totale du genou qui remplace également la fonction ligamentaire, peut donc être efficace dans les genoux rhumatoïdes, grandement endommagés.
    Notes: Summary The cruciate ligaments were resected with their bony insertions during total knee arthroplasty carried out in 12 patients with severe rheumatoid or osteoarthritis. The ligaments were examined histologically and biomechanically, using ten specimens from healthy adults as a control. A significant difference was found in the tensile stiffness and viscoelastic properties of the ligaments between the arthritic and the control group. The ligaments in the rheumatoid knees had a distinctly inferior tensile strength compared with the osteoarthritic knees. Total knee replacement, which also replaces ligament function, should therefore be considered in severely damaged rheumatoid knees.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Der Chirurg 68 (1997), S. 1175-1180 
    ISSN: 1433-0385
    Keywords: Key words: Acute postoperative osteitis ; Infection management ; Implant removal. ; Schlüsselwörter: Akute postoperative Osteitis ; Infektsanierung ; Materialentfernung.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Die vorgestellte, prospektive Studie dient als Qualitätskontrolle eines befund- und antibiogrammgerechten Revisionskonzepts bei akuten ( 〈 3 Monate) postoperativen Infektionen nach Osteosynthesen. Die Therapie verfolgt 2 hierarchisch abgestufte Zielsetzungen: 1. Infektsanierung und Vermeidung des Übergangs der akuten in die chronische Osteitis; 2. Erhaltung der Osteosynthese, soweit möglich. 34 Patienten wurden in diese Studie rekrutiert. Die operativen Revisionen erfolgten zeitlich definiert (Abstand 2 Tage) nach einheitlichem Konzept (Débridement, Spülung, lokaler Wirkstoffträger, Drainage). Nach 4 Revisionen mußte der Operationssitus bakteriologisch sauber sein, ansonsten erfolgte die Materialentfernung. In 11 Fällen konnten beide Ziele erreicht werden: Infektsanierung und Erhaltung der Osteosynthese. In 23 Fällen mußte das Implantat entfernt werden, die Ausheilung des Infekts gelang dann in allen Fällen. Als Risikofaktoren für eine zur Infektsanierung obligate Materialentfernung konnten evaluiert werden. Diabetes, AVK, erhöhter Alkoholkonsum, Nicotinabusus. Das vorgestellte Revisionskonzept trägt dazu bei, nach operativer Frakturversorgung den potentiellen Übergang einer akuten zur chronischen Osteitis nach Möglichkeit zu verhindern.
    Notes: Summary. This prospective study served as a quality control of a revision concept for case of post-traumatic infection following open reduction and internal fixation in fracture treatment. It is based on clinical and microbiological criteria and has two aims: (1) eradication of the infection and avoidance of development of chronic osteitis; (2) maintenance of internal fixation, if possible. Thirty-four patients were recruited in this study. Surgical revisions were performed according to a consistant concept (débridement, irrigation, local chemotherapy, drainage) in defined time intervals (2 days). The operation site had to be bacteriologically clean after four revisions. Otherwise, the implant had to be removed. Both aims were reached in 11 cases: management of infection with maintenance of internal fixation. In 23 cases the implant material had to be removed. Nevertheless the infection was eliminated in all these patients without exception. The following risk factors for mandatory implant removal were evaluated: diabetes, arteriosclerosis, alcoholism, nicotine. This revision concept helps in the management of acute postoperative osteitis following ORIF in fracture treatment and in avoiding the development of chronic osteitis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 345-351 
    ISSN: 1279-8517
    Keywords: Patella ; Allogenic bone transplantation ; Knee joint ; Vascularized graft ; Blood supply
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La disposition des artères alimentant le réseau patellaire a été examinée sur 14 pièces anatomiques dans le but d'améliorer la technique de la transplantation de l'articulation du genou. Les pièces étaient fixées dans la solution de Jores et désarticulées à la hanche. Les membres inférieurs étaient injectés à la gélatine colorée au bleu de Berlin et les artères étaient disséquées sans grossissement optique. Cinq ou six artères alimentaient le réseau patellaire à 1, 3, 5, 7 et 11 heures et formaient un cercle artériel. Ces artères sont les mêmes artères principales qui vascularisent la partie distale du fémur et la partie proximale du tibia. D'un point de vue anatomique, ces artères fournissent la totalité de la vascularisation artérielle de l'articulation du genou à transplanter, patella incluse. A partir de ces résultats anatomiques, nous avons préparé et transplanté deux articulations de genou humaines comme allogreffes vascularisées incluant la patella, la capsule et le ligament patellaire. Plus de 6 mois après l'intervention, nous avons montré la vascularisation et la réhabitation de ces trois os transplantés, en particulier de la patella grâce à la scintigraphie au technetium 99. Nous avons comparé ces résultats avec les données de l'arthroscopie et l'analyse histologique des biopsies prélevées au niveau de la patella. Les examens postopératoires ont clairement montré la réhabitation des patellas transplantées grâce à cette nouvelle technique opératoire. Les résultats de cette étude montrent qu'il est techniquement faisable de transplanter une articulation du genou entière, qui reste cliniquement viable.
    Notes: Summary The architecture of the arteries supplying the patellar rete was examined in 14 anatomic specimens in order to develop an optimized operating technique for knee joint transplantation. The specimens were fixed in Jores Solution and exarticulated from the hip joint. The lower limbs were injected with Berliner-Blau-Gelatin, and the arteries were dissected macroscopically. Five to six main arteries entered the patellar rete at 1, 3, 5, 7 and 11 o'clock forming an arterial circle. These arteries were the same main arteries which supply the distal end of the femur and the proximal part of the tibia. From an anatomic perspective, they provide the complete arterial blood supply to a whole knee joint being transplanted including the patella. Based on these anatomic results, we transplanted two allogenic vascularized human knee joints preserving the patella, the capsule, and the patellar ligament. Up to six months after surgery we demonstrated the perfusion and viability of all three transplanted bones, particularly the patella, by 99mTc DPD scintigraphy. We compared these findings with knee joint arthroscopy and with histologic results from biopsies taken from the patella. The postoperative examinations clearly indicated the viability of the transplanted patella employing this new operating technique. The results of the entire study demonstrate that it is technically feasible to transplant a whole knee joint which remains clinically viable.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1998), S. 345-351 
    ISSN: 1279-8517
    Keywords: Patella ; Allogenic bone transplantation ; Knee joint ; Vascularized graft ; Blood supply
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The architecture of the arteries supplying the patellar rete was examined in 14 anatomic specimens in order to develop an optimized operating technique for knee joint transplantation. The specimens were fixed in Jores Solution and exarticulated from the hip joint. The lower limbs were injected with Berliner-Blau-Gelatin, and the arteries were dissected macroscopically. Five to six main arteries entered the patellar rete at 1, 3, 5, 7 and 11 o’clock forming an arterial circle. These arteries were the same main arteries which supply the distal end of the femur and the proximal part of the tibia. From an anatomic perspective, they provide the complete arterial blood supply to a whole knee joint being transplanted including the patella. Based on these anatomic results, we transplanted two allogenic vascularized human knee joints preserving the patella, the capsule, and the patellar ligament. Up to six months after surgery we demonstrated the perfusion and viability of all three transplanted bones, particularly the patella, by 99mTc DPD scintigraphy. We compared these findings with knee joint arthroscopy and with histologic results from biopsies taken from the patella. The postoperative examinations clearly indicated the viability of the transplanted patella employing this new operating technique. The results of the entire study demonstrate that it is technically feasible to transplant a whole knee joint which remains clinically viable.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-2277
    Keywords: Key words Knee joint ; Vascularized graft ; Bone ; Transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Four transplantations of an allogeneic vascularized human knee joint were performed at the Trauma Center Murnau between April 1996 and July 1997. The indication for the procedure was the total loss of the knee joint including the extensor apparatus due to severe trauma. These were the first transplants of this type. Management of patients started with closure of soft-tissue defects. After successful completion, stabilization was achieved with femoral and tibial nails plus a temporary arthroplasty. AB0 compatibility and a negative cross-match were the main criteria for selecting patients for transplantation. Interlocking compression nails were used for osteosynthesis. Vascular anastomoses between graft and recipient vessels were established by the end-to-side technique. Immunosuppression was started as a quadruple induction therapy for 3 days, then reduced to a two-drug maintenance therapy with cyclosporine and azathioprine. Six months posttransplantation the osteotomies were bridged by callus and the patients became completely mobile. Radiographic and histological examinations revealed vital graft tissue.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Trauma und Berufskrankheit 1 (1999), S. 429-431 
    ISSN: 1436-6274
    Keywords: Schlüsselwörter Sprunggelenk ; Arthrodese ; Dübeltechnik ; Kompressionsnagel ; Key words Ankle ; Arthrodesis ; Dowel technique ; Compression nailing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Ankle arthrodesis represents a standard indication for the treatment of uncontrollably painful post-traumatic arthrosis. Compression osteosynthesis, resection of the joint surface, and correct bone transplantation are necessary to attain complete bone healing. As with stabilization, the literature reports on a large variety of techniques concerning osteosynthesis and bone grafting. This paper presents a method using cancellous dowels drawn from the resected distal ankle bone. The dowels are inserted into holes in the ankle joint made with a cannulated cutting device. This cancellous dowel bone grafting can be combined with any kind of osteosynthesis, of which compression nailing has proven to be especially well-suited.
    Notes: Die Sprunggelenkarthrodese stellt nach wie vor eine Standardindikation bei unbeherrschbaren Schmerzzuständen der posttraumatischen Arthrose dar. Ausschlaggebend für die regelrechte Ausheilung ist neben der korrekt ausgeführten (Kompressions-)¶Osteosynthese und der ausreichenden Resektion der Knorpelflächen die Art der Knochentransplantation. Hier wird in der Literatur, ebenso wie bei der Stabilisierung, eine große Bandbreite von Techniken beschrieben. In der vorliegenden Arbeit wird eine Methode vorgestellt, bei der aus dem Außenknöchel Spongiosadübel gefräßt werden. Diese werden in Dübellöcher eingeblockt, die zuvor aus dem zu versteifenden Gelenk ausgefräßt wurden. Diese Art der Spongiosaplastik kann mit verschiedenen Osteosyntheseverfahren kombiniert werden, als besonders vorteilhaft hat sich die Kompressionsmarknagelung erwiesen.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 114 (1995), S. 159-166 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Allogeneic transplantation of human cancellous and cortical bone is a controversially discussed concept in trauma and orthopaedic surgery. Biological and immunological arguments support transplantation of autologous material whenever this is technically possible. On the other hand, synthetic alloplastic materials for bone substitution are available free of immunological and hygienic hazards. In this context the value of allogeneic bone grafts is discussed, especially considering the problem of AIDS. If autologous corticospongious bone is to be used its supply is limited. On the other hand, alloplastic synthetic artificial bone does not meet all the requirements demanded for substitution of large osseous defects up to now. The problems of geometric and mechanical stability of these alloplastic materials still remain. Therefore, no alternative to allografting of large, stable, corticospongious fragments exists in some cases. Bone transplantation is performed without vital indication in nearly every case. Thus an optimum of hygienic security has to be claimed for recipients of allogeneic bone. The “Munich model” for bone transplantation is presented and discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 116 (1997), S. 125-128 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In this paper we report the first successful allogeneic vascularized transplantation of a fresh and perfused human knee joint. A 17-year-old male had lost his knee in a motorvehicle accident. The graft was harvested from a multiorgan donor, perfused with 41 UW solution and transplanted within 21 h. Osteosyntheses were performed employing intramedullary nails. Immunosuppression was based mainly on two drugs: cyclosporin A and azathioprine. Five months after the operation the patient is fully mobilized, and the graft perfusion still intact. Osteotomies of the femur and tibia demonstrate callus formation and osseous consolidation.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 116 (1997), S. 143-150 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Twenty-one patients received allogeneic human bone grafts following deep freezing according to various orthopaedic indications. The HLA antigens of all donors and recipients had been determined preoperatively, and grafting was performed without any respect to the HLA match. The immunological follow-up of the recipients was managed by two different methods: MLC (mixed lymphocyte culture) and MAILA (monoclonal antibody-specific immobilisation of lymphocyte antigens). No immunosuppression was performed. The follow-up lasted up to 6 years. Allogeneic grafting of human cancellous bone induces specific immunological reactions in the recipient. The consequences of these observations are: (1) allogeneic bone grafting may induce second-set reactions following subsequent blood transfusion, tissue grafting or organ transplantation; (2) transplantation of fresh, perfused, vascularised allogeneic bone or joint may become a therapeutic approach in the near future. Then the employment of standard immunosuppressive protocols will be mandatory in order to fight acute rejection of the graft.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 114 (1995), S. 123-132 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Up to now the internal fixation of fractured bones and joints has been managed by metal implants. There are certain associated disadvantages: the mechanical properties of the metals are stronger than those of cortical bone (“stress-protection”); the removal of the implants requires a second operation; an increasing number of patients are confronted with problems of sensitivity to metal components of the implants, especially nickel. About 40 different biodegradable polymers, copolymers and composites have been developed as substitutes for metal implants in internal fracture fixation. The early experimental and clinical results demonstrate their limitations. From the current point of view, it is not possible to transfer the designs and assembling principles of metal implants in orthopaedic surgery to biodegradable polymers. The attempt to simply mimic metal implants in polymers is condemned to fail from the very beginning. This is a review of the literature and of our first 100 patients operated on using implants made of self-reinforced polyglycolide acid and polydioxanone. The main difficulty with the material is the loss of stiffness in a time interval which is not long enough to guarantee bone healing. The development of a sterile sinus over the site of implantation is a problem also reported by other groups. Certain additives have to be inserted into the polymers to make them visible on conventional X-radiographs. Despite these drawbacks, however, there are indications for the isolated or adjuvant implantation of biodegradable materials. They could be employed in the treatment of osteochondral fractures and other defined injuries. The available literature on these indications will be discussed. A standardized set of possible indications for the use of different biodegradable devices in orthopaedic surgery is presented as are clear contraindications for their use at the present time. For the future, fixation devices adapted to the characteristic properties of polymers and adjusted to specific therapeutic problems will have to be developed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...