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  • Key words Tibial plateau fractures  (1)
  • Key words: Segmental bone defects  (1)
  • 1
    ISSN: 1433-0385
    Keywords: Key words: Segmental bone defects ; Callus distraction ; Unreamed interlocking nails ; Bone transport. ; Schlüsselwörter: Knochensegmentdefekte ; Callusdistraktion ; ungebohrte Verriegelungsnägel ; Knochentransport.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Eine Behandlungsmethode bei Knochensegmentdefekten und Beinverkürzungen wird vorgestellt, die aus einer Osteotomie mit anschließendem Segmenttransport durch einen anteromedial (Tibia) oder lateral (Femur) angebrachten AO-Transportfixateur externe über einen ungebohrten Verriegelungsnagel besteht (Monorail-System). Zwanzig Patienten wurden mit diesem Verfahren bei unterschiedlichen Indikationsstellungen behandelt. Dreizehn wiesen einen Knochensegmentdefekt der Tibia und 3 Patienten des Femur auf, 3 Patienten hatten eine posttraumatische bzw. postinfektiöse Beinlängendifferenz und einer eine hypertrophe Pseudarthrose des Oberschenkels. Die Defektstrecken bzw. Beinlängendifferenz variierten zwischen 5 und 18,5 cm. Die durchschnittliche Transportzeit betrug 19,42 d/cm bei Tibiaschaftdefekten, 15,93 d/cm am Oberschenkel. Es traten 2 Systemversager auf, die eine Markraumphlegmone entwickelten und durch Verfahrenswechsel zum Ilizarov-Ringfixateur ausbehandelt wurden. Trotz Komplikationen beim Monorail-Verfahren kam es in keinem Fall zur nachfolgenden Amputation der Extremität. Das Monorail-Distraktionssystem ist bei genauer Indikationsstellung eine Alternative zu anderen Callusdistraktionsverfahren, insbesondere dem Ilizarov-Ringfixateur. Ein Algorithmus bei Knochensegmentdefekten ohne Infekt unter Berücksichtigung von Weichteilschäden mit und ohne neurovasculäre Komponenten ist erstellt.
    Notes: Summary. A treatment protocol is demonstrated, consisting of an osteotomy, either proximal or distal, of the bone defect with subsequent segmental transport via an anteromedially (tibia) or laterally (femur) mounted AO external fixation over an unreamed interlocking nail (monorail system). Twenty patients were treated by this method with indications as follows: 13 had a segmental bone defect of the tibia, 3 of the femur. Three patients showed post-traumatic and postinfectious leg-length discrepancies and one was treated for hypertrophic non-union of the femur. Defect distance varied between 5 and 18.5 cm and average time for transport was 19,42 days/cm for the tibial shaft, 15,93 days/cm for the femur. Two patients developed deep infection, which required change of treatment, removing the monorail system and application of an Ilizarov apparatus. Despite complications using the monorail system, all patients healed and no amputations were required. The monorail system can be used as an alternative to the Ilizarov method under certain criteria of patient selection; these criteria are shown by an algorithm for segmental bone defects without infection, respecting the soft-tissue status with or without neurovascular compromise.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-044X
    Keywords: Schlüsselwörter Tibiakopffraktur ; Ilizarov-Hybrid-Fixation ; Supportive Osteosynthese ; Weichteilschaden ; Minimal-invasive Technik ; Key words Tibial plateau fractures ; Ilizarov hybrid fixation ; Supportive fixation ; Softtissue damage ; Minimal invasive technique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Recent operative techniques with percutaneous screw fixation of the tibial plateau require a high level of patient compliance. Geriatric, non-cooperative patients and fractures with severe soft tissue injury have had to be excluded so far from this ther-apeutic regimen. Since September 1993, composite hybrid fixation, as a combination of ring fixation of the epimetaphyseal tibia with monolateral AO fixation of the tibial shaft, has been performed in 12 patients. The data were collected prospectively. Fractures were classified according to the AO and Moore classification; soft tissue damage was classified according to Tscherne and Gustilio. Fixation was performed with the cannulated AO system, 2.0 mm titanium K wires and 5.0 mm AO Schanz screws. In five patients, additional arthroscopic control of the reposition was performed. Average removal of the external fixator was 16 weeks postoperatively. Pin-tract infections occurred in all patients, mainly in the metaphyseal region. In one patient, a knee infection resulted from a subchondral intra-articular pin, which was treated by repetitive arthroscopic synovectomy. In two patients, a secondary loss of reposition (5 – 7° varus) occurred. Despite a high rate of soft tissue damage (8/12), no osteitis or nonunion occurred. As an alternative to extensive methods of ORIF, supportive composite hybrid fixation offers a new perspective of early functional treatment, weight bearing and a rare loss of reposition. It is favored in geriatric, non-cooperative patients and in fractures with severe soft tissue damage.
    Notes: Alternativ zu aufwendigen internen Stabilisierungsverfahren bietet die supportive Composite-Hybridfixation bei Tibiakopffrakturen eine neue Perspektive der frühfunktionellen Nachbehandlung mit seltenem Repositionsverlust bei frühzeitiger Vollbelastung. Sie wird bevorzugt bei geriatrischen und alkoholabhängigen Patienten sowie bei Frakturen mit höhergradigem Weichteilschaden eingesetzt.
    Type of Medium: Electronic Resource
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