China
Africa
Explore chapters and articles related to this topic
Ilizarov hip reconstruction osteotomy for neglected dislocation of the hip in young adults
Published in K. Mohan Iyer, Hip Preservation Techniques, 2019
It is important to choose the right patient for this procedure. This is an extra-articular procedure, and a patient with a stiff, painful, and damaged but located femoral head is not a suitable candidate. In cases of developmental dysplasia of hip (DDH), the procedure is only suitable if the hip is painful and dislocated, the acetabulum is severely dysplastic, and there is sufficient adduction to move the femoral head away from the sidewall of the pelvis where impingement is judged to be the source of pain. The patient described here has many of the suitable features for Ilizarov hip reconstruction, principally a mobile, albeit flail hip, and shortening and instability with little pain. The destroyed femoral head is the classic indication.15 The steps of the procedure are to carry out a percutaneous subtrochanteric valgus femoral osteotomy, stabilized with an Ilizarov external fixator, and then a more distal femoral osteotomy for correction of valgus and for lengthening. The distal osteotomy can be stabilized with a standard Ilizarov fixator, but it is easier to use a Taylor spatial frame, which will be the method described here.16
Extremity trauma
Published in Professor Sir Norman Williams, Professor P. Ronan O’Connell, Professor Andrew W. McCaskie, Bailey & Love's Short Practice of Surgery, 2018
Professor Sir Norman Williams, Professor P. Ronan O’Connell, Professor Andrew W. McCaskie
External fixation involves percutaneous placement of metal rods or fine wires into bone to anchor a metal frame on the outside (Table28.7). The frame construct itself may be comprised of tubular rods with connectors, or circular ring constructs ‘ilizarov' type of frame. Hybrid variations are infinite, with combinations of anchor fixation modalities and frame constructs. The Taylor spatial frame allows for gradual correction of deformity (Figure28.14).
Tibial Plateau Fracture
Published in Raymond Anakwe, Scott Middleton, Trauma Vivas for the FRCS (Tr & Orth), 2017
Raymond Anakwe , Scott Middleton
I would expect that this fracture pattern would be amenable to fixation with locked peri articular plates but this would need to be confirmed by the CT scan. Should this not be the case, Ilizarov or Taylor Spatial Frame fixation may be alternatives. There is also some evidence for primary arthroplasty as a treatment for elderly patients with tibial plateau fractures and pre-existing knee arthritis.
Combined massive allograft and intramedullary vascularized fibula transfer: the Capanna technique for treatment of congenital pseudarthrosis of the tibia
Published in Acta Orthopaedica, 2020
Stefanie C M Van Den Heuvel, Hay A H Winters, Klaas H Ultee, Nienke Zijlstra-Koenrades, Ralph J B Sakkers
Patient 2, who had a contralateral vascularized fibula transfer, underwent a second procedure 3 years after the initial procedure during which the LCP plate was removed because the end of the curve of the plate deviated from the bone due to growth of the distal tibia. Additionally, an 8-plate was placed over the distal tibial epiphyseal plate to treat a valgus deformity of the distal epiphysis of the tibia. Progressive migration of the distal fibula with instability of the ankle joint was seen, which was treated by repositioning of the distal fibula with a Taylor spatial frame and subsequent creation of a synostosis of the distal tibia and distal fibula. In addition, the 8-plate on the distal medial side of the left tibia was replaced as the screws had developed maximum divergence and an 8-plate was placed on the distal medial side of the right tibia (donor site) to treat the valgus of the ankle on the donor side.
Design approaches and challenges for biodegradable bone implants: a review
Published in Expert Review of Medical Devices, 2021
The healing behavior of damaged bone in the presence of biodegradable bone implant can be analyzed and predicted using finite element methods under dynamic mechanical loading. This can be done with the help of variations in interfragmentary movement at the fracture site, biomechanical activity (e.g. concentration of growth factors) of newly generated tissues, and biochemical activity of associated cells during the early stage of healing. All these cellular host responses and mechanical simulation in the callus may be very sensitive to the mechanical micro-environment throughout the fracture healing process. This makes it quite difficult to understand and achieve an optimum healing solution in case of NB material implants. Mechanical stiffness and fixator performance for variable loadings, and transient gaps at the fracture site, are of critical importance in connection with inter-fragmentary movements. Effective healing has been conventionally achieved through traditional fixation techniques, such as the Ilizarov Circular Fixator, Taylor spatial frame, etc [95,96]. In the early stage of healing, cells and growth agents diffuse into the fracture site. This is followed by interstitial fluid transporting nutrients, oxygen and wastes through callus. The transportation phase is influenced by applied dynamic loads. As shown in Figure 7, the expected flow chart of these processes can take into account the biomechanical stimuli-mediated stem cell differentiation and tissue production that results in advective (convective) transport of cells (mesenchymal stem cells, fibroblasts, chondrocytes, and osteoblasts) and growth factors (osteogenic growth factors and chondrogenic growth factors) induced by interstitial fluid flow because of dynamic loading and variations in bone implant gap (under continuous degradation of biodegradable implant) [82,83,95–97].
Remote-controlled internal lengthening plate for distraction osteogenesis in pediatric patients
Published in Expert Review of Medical Devices, 2019
Jérémie Gaudreau, Mina Mekhail, Reggie Hamdy, Isabelle Villemure
The Taylor Spatial Frame uses a similar fixation as the Ilizarov combined with Kirschner wires but features a hexapod multiaxial distraction system. Contrary to the Ilizarov, which distracts the bone segments in one direction, the Taylor Spatial Frame can make corrections in all directions, including rotations. Though it offers a more adapted solution than the Ilizarov, the risks of scarring and infection remain due to the identical percutaneous fixation [9].