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The aim of this study was to evaluate the stability of Le Fort I maxillary inferior repositioning surgery in patients with a vertical maxillary deficiency at least 6 months after surgery. The electronic databases were searched to identify all articles reporting the long-term effects of one-piece maxillary inferior repositioning with rigid fixation. Methodological quality was evaluated according to 15 criteria related to study design, measurements, and statistical analysis. Two articles were identified, with a total of 22 patients. The maxilla was repositioned inferiorly from a mean 3.2 to 4.5mm in the anterior part and from a mean 0.1 to 1.8mm in the posterior part. At 6 months post-treatment, absolute relapse of a mean 1.6mm was measured for the anterior part of the maxilla and 0.3mm for the posterior part of the maxilla. The stability of maxillary inferior repositioning surgery could not be confirmed due to the small sample size, unclear diagnosis, and potential confounding factors.
- Klíčová slova
- Le Fort, orthognathic surgery, osteotomy, recurrence,
- MeSH
- interní fixátory MeSH
- lidé MeSH
- maxila chirurgie MeSH
- osteotomie Le Fortova * MeSH
- recidiva MeSH
- techniky fixace čelistí * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- přehledy MeSH
- systematický přehled MeSH
Most hangman's fractures are treated conservatively. If surgery is indicated, an anterior approach using a C2/C3 graft and plate fusion is usually preferred. Another surgical method according to Judet is direct transpedicular osteosynthesis by the dorsal approach. This surgery is frequently rejected because of the high risk of spinal cord damage or vertebral artery tear. Direct transpedicular osteosynthesis of hangman's fracture according to Judet is a "physiological operation" that does not cause fusion and creates anatomical conditions. This procedure enables appropriate reduction, compression of fragments and immediate stabilization of the C2 segment. A new aspect of Judet's method of internal fixation of a hangman's fracture is now proposed. Computed tomographic (CT) guidance is used to ensure safe and exact introduction of two screws from the posterior approach. This method of CT-guided internal fixation of hangman's fracture allows, preoperatively, for an accurate assessment of the pattern and course of fracture line, selection of the anatomically safest screw path and determination of an appropriate screw length. The procedure also allows for accurate intraoperative control of instrument and implant placement, screw tightening, fracture reduction and anchoring of the screw tip in the contralateral cortex, using repeated CT scans. The procedure is performed in a CT unit under sterile conditions. This method was used in the treatment of eight male and two female patients aged 21-71 years. All treated patients were without neurological deficit. Follow-up ranged from 12 to 57 months (mean 33.3 months). No intraoperative or early or late postoperative complications were apparent. This new aspect of the surgical procedure ensures highly accurate screw placement and minimal risks, and fully achieves the "physiological" internal fixation.
- MeSH
- axis zranění MeSH
- dospělí MeSH
- fraktury páteře diagnostické zobrazování chirurgie MeSH
- fúze páteře MeSH
- kostní šrouby MeSH
- krční obratle diagnostické zobrazování zranění MeSH
- lidé středního věku MeSH
- lidé MeSH
- počítačová rentgenová tomografie * MeSH
- senioři MeSH
- vnitřní fixace fraktury metody MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE OF THE STUDY Vertically unstable transforaminal sacral fractures can be stabilized with several types of transiliac internal fixators (TIFI): the classical one (TIFI-C), the supraacetabular one (TIFI-A) and by dual application of TIFI (DTIFI). MATERIAL AND METHODS Pelvic models made of solid foam (Sawbones 1301) were used in the study. Mechanical loading tests were performed in order to assess the stiffness of the studied pelvic structures. The stiffness of the intact model was approximated as the slope of load/displacement curve. Then vertically unstable right-sided linear transforaminal fracture was created and subsequently fixed by TIFI-C, TIFI-A and DTIFI (each fixator for a separate model). The fixation techniques were compared based on the ratio between the stiffness of the treated and of the intact pelvis. Motion of the posterior pelvic structures and their deformations were measured using a photogrammetric system with four synchronous cameras. Loads applied at the base of sacrum and sacral base displacements were recorded by the testing device and used to assess the stiffness of the model structure. A dedicated load cell and a monoaxial extensometer were utilised. Every measurement was repeated at least 10 times. Obtained data were analysed by one way ANOVA test with post hoc comparison by Tukey HSD test. RESULTS Mean stiffness ratio (±1SD) of pelvic structure was 0.638 ± 0.005 for TIFI-C, 0.722 ± 0.014 for TIFI-A and 0.720 ± 0.008 for DTIFI. Dual transiliac internal fixation and supraacetabular fixation were superior to the classical one (p < 0.0001), but DTIFI and TIFI-A stiffness ratios were statistically equivalent (p = 0.9112). CONCLUSIONS Results of the mechanical analysis using pelvic models indicate that for linear vertical transforaminal sacral fracture without comminuted zone, an application of either TIFI-A or DTIFI provides significantly higher stiffness of the lateral pelvic segment than application of TIFI-C. Key words: transforaminal sacral fracture, transiliac internal fixator, dual TIFI, stability, biomechanics, digital image correlation.
- MeSH
- biomechanika MeSH
- fraktury kostí * MeSH
- interní fixátory MeSH
- kostní šrouby MeSH
- křížová kost chirurgie MeSH
- lidé MeSH
- mechanické testy MeSH
- pánev MeSH
- pánevní kosti * diagnostické zobrazování chirurgie MeSH
- vnitřní fixace fraktury MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
The most frequently used implants for internal fixation of proximal femoral fractures are currently the dynamic hip screw and the intramedullary hip nail. However, little has been written about one of the pioneers in this field, a German genius, the designer Ernst Pohl (1876-1962). Without his involvement the concepts of intramedullary nailing coined by Gerhard Küntscher, Richard Maatz and other surgeons could hardly have been implemented. Through his achievements Pohl has rightly merited his pre-eminent position in the history of bone surgery. This article outlines the extraordinary contribution of Ernst Pohl to the development of skeletal surgery and radiology, as well as other medical disciplines.
- MeSH
- dějiny 19. století MeSH
- dějiny 20. století MeSH
- fraktury kyčle dějiny chirurgie MeSH
- intramedulární fixace fraktury dějiny MeSH
- lidé MeSH
- ortopedie dějiny MeSH
- vnitřní fixace fraktury dějiny MeSH
- Check Tag
- dějiny 19. století MeSH
- dějiny 20. století MeSH
- lidé MeSH
- Publikační typ
- biografie MeSH
- časopisecké články MeSH
- historické články MeSH
- O autorovi
- Pohl, Ernst
Originally, the treatment method of choice for distal radial fractures (DRF) has been a non-operative approach with six to eight weeks of plaster casting. The introduction of volar locking plate systems at the beginning of the 21 st century has pushed trends towards open reduction and internal fixation (ORIF). While the introduction of fixed angle locking plates together with the increasing knowledge on wrist function and related variable outcomes has led to consensus that operative fixation in instable DRF is the treatment method of choice, there is no agreement on a postoperative care of these injuries. The authors will discuss the available evidence for current concepts of postoperative treatment of DRFs following fixed angle fixation under socioeconomical, biomechanical and burden of disease aspects. Further, relevant randomized controlled trials are evaluated with regard to applied postoperative treatment regimes and related risks for complications.
- MeSH
- časné pohybování MeSH
- fraktury vřetenní kosti chirurgie MeSH
- kostní destičky * MeSH
- lidé MeSH
- medicína založená na důkazech metody MeSH
- pooperační péče metody MeSH
- poranění zápěstí chirurgie MeSH
- socioekonomické faktory MeSH
- vnitřní fixace fraktury škodlivé účinky přístrojové vybavení metody rehabilitace MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
Fractures of the bones of elderly people occur more often and have a more important effect because of a generally diminished ability to coordinate stance and walking. These fractures occur at a lower level of load because of lack of strength of the porotic bone. Prompt recovery of skeletal support function is essential to avoid respiratory and circulatory complications in the elderly. To prevent elderly people from the risks of being bedridden, demanding internal fixation of fractures is required. The weak porotic bone and the high level of uncontrolled loading after internal fixation pose complex problems. A combination of several technical elements of design, application and aftercare in internal fixation are proposed. Internal fixators with locked screws improve the biology and the mechanics of internal fixation. When such fixators are used as elevated splints they may stimulate early callus formation because of their flexibility, the limit of flexibility being set by the demands of resistance and function of the limb. Our own studies of triangulation of locked screws have demonstrated their beneficial effects and unexpected limitations.
- MeSH
- fraktury kostí komplikace MeSH
- kosti a kostní tkáň patofyziologie MeSH
- kostní destičky * MeSH
- kostní šrouby * MeSH
- lidé MeSH
- mechanický stres MeSH
- osteoporóza komplikace patofyziologie MeSH
- senioři MeSH
- techniky in vitro MeSH
- testování materiálů MeSH
- vnitřní fixace fraktury metody MeSH
- Check Tag
- lidé MeSH
- senioři MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE OF THE STUDY: To evaluate the results of stabilisation of the posterior pelvic segment with a transiliacal internal fixator (TIFI) in type C fractures of the pelvis. MATERIAL AND METHODS: Between 2008 and 2011, the TIFI method was used in 27 patients with unstable type C pelvic ring fractures (AO classification) at our department. The patient group included 15 men and 12 women with an average age of 35 years (range, 15 to 65 years). All patients suffered high-energy trauma in traffic accidents (59.3%), by falls from a height (33.3%) or due to other causes (7.4%). In 40.7% of the patients, pelvic injury was part of polytrauma. Fixation was carried out using two polyaxial screws and the rod of a spinal instrumentation Legacy® or Colorado®. The method was employed for unilateral SI joint dislocation in five cases, and for unilateral sacral fractures of Pohlemann type I in six cases, Pohlemann type II in 13 cases and Pohlemann type III in three cases. The patients were mobilised, with associated injuries taken into consideration, at 5 post-operative weeks on the average. They were followed up at 6-week intervals until healing of fracture, then at one year after surgery and every 12 months thereafter. RESULTS All 27 patients achieved bone union within 6 months. The average operative time was 29 min (21 to 45 min). The average hospital stay was 22 days (11 to 66 days). The average duration of bed rest was 36 days (14 to 71 days). Complications included bronchopneumonia in two patients, and a redislocation with displacement of the posterior segment up to 10 mm in one patient. DISCUSSION: Transiliacal internal fixation is a minimally invasive method used to treat unstable pelvic ring fractures. Compared to other types of fixation, it carries a low risk of injury to nerve and vascular structures as well as a low risk of infectious complications, is associated with low blood loss and is easy to perform. The TIFI provides stability comparable with the use of two iliosacral screws, without the risk of excessive compression even in comminuted transforaminal fractures of the sacrum. However, the need to operate on patients lying in the prone position is a disadvantage because, in polytraumatised patients, it makes implantation at the acute phase impossible. CONCLUSIONS: The TIFI technique is one of the options for fixation of posterior pelvic segment fractures. A short operative time and minimum complications are undeniable advantages. Indications should be carefully considered in each patient. TIFI is a minimally invasive method for anterior pelvic segment fixation that can also be used in the acute stage of injury.
- MeSH
- dospělí MeSH
- fraktury kostí chirurgie MeSH
- interní fixátory * MeSH
- lidé středního věku MeSH
- lidé MeSH
- miniinvazivní chirurgické výkony MeSH
- mladiství MeSH
- mladý dospělý MeSH
- os ilium chirurgie MeSH
- pánevní kosti zranění MeSH
- senioři MeSH
- vnitřní fixace fraktury * MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- Klíčová slova
- FACIAL INJURIES *, FRACTURE FIXATION *,
- MeSH
- fixace fraktury * MeSH
- fraktury kostí * MeSH
- lidé MeSH
- poranění obličeje * MeSH
- vnitřní fixace fraktury * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
