1,721,047 research outputs found

    Repeated floating elbow injury after high-energy trauma

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    The floating elbow is an uncommon injury occurring both in children and in adults. Two reports of rare variants of floating elbow injury have been published, but to the best of our knowledge, no recurrence of this injury has been described. We present a complex pattern of floating injury, occurring in the same limb 3 years after a floating elbow lesion, which included supracondylar fracture of the humerus and associated ipsilateral midshaft fracture of forearm bones. Satisfactory outcomes were finally obtained. This clinical case illustrates the importance of carefully assessing floating elbow injuries when they occur to optimize the surgical strategies and the adequate timing of the treatment. A comprehensive literature review of the floating elbow injuries is here reported

    Role of fibular autograft in ankle arthrodesis fixed using cannulated screws: a proportional meta-analysis and systematic review

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    Ankle arthrodesis is commonly performed to treat end-stage ankle osteoarthritis. The aim of this study was to determine whether the use of fibular autograft might increase the fusion rate and decrease the complication rate in ankle arthrodesis (AA) fixed using cannulated screws. To perform this PRISMA-compliant proportional meta-analysis, multiple databases were searched for studies in which patients undergone AA (using exclusively cannulated screws and augmented with fibular bone graft) were followed. The characteristics of the cohort, the study design, surgical details, the nonunion and complication rate at the longest follow-up were extracted and recorded. The modified Coleman Methodology Score (mCMS) was applied to appraise the quality of studies. Two groups were built: arthrodeses fixed with screws combined with cancellous autograft (G1) and arthrodeses fixed with screws combined with cancellous autograft and augmented with a lateral fibular onlay (G2). A third group (arthrodeses fixed with screws and no graft, G3) was extracted from previous literature for a further comparison. Overall, we included 306 ankles (296 patients) from ten series (ten studies). In G1 and G2 there were 118 ankles (111 patients) and 188 ankles (185 patients), respectively. In patients where cancellous autograft was used, a further augmentation with a fibular lateral strut autograft did not change significantly the nonunion (4% [95% CI 1–9] in G1 vs. 2% [95% CI 0–5) in G2, p = 0.99) nor the complication rate (18% [95% CI 0–36] in G1 vs. 13% [95% CI 6–21) in G2, p = 0.71). Upon comparison with 667 ankles (659 patients, G3) in which arthrodeses had been performed without grafting, the nonunion and complication rates did not differ significantly either (pooled estimates: 3% [95% CI 1–3) in G1 + G2 vs. 3% [95% CI 2–4] in G3, p = 0.73 for nonunion; 15% [8–23] in G1 + G2 vs. 13% [95% CI 9–17] in G3, p = 0.93 for complications). In ankle arthrodesis fixed with cannulated screws combined with cancellous autograft at the fusion site, a construct augmentation with a distal fibular onlay strut graft positioned laterally at the ankle joint does not reduce the risk of nonunion or complication. In general, the use of bone graft does not influence significantly the nonunion nor the complication rate as compared to non-grafted screw-fixed ankle arthrodeses.Kindly check and confirm the corresponding author mail id is correctly identified.It's all correc

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Physical, mechanical and pharmacological properties of coloured bone cement with and without antibiotics

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    Coloured bone cements have been introduced to make the removal of cement debris easier at the time of primary and revision joint replacement. We evaluated the physical, mechanical and pharmacological effects of adding methylene blue to bone cement with or without antibiotics (gentamicin, vancomycin or both). The addition of methylene blue to plain cement significantly decreased its mean setting time (570 seconds (SD 4) vs 775 seconds (SD 11), p = 0.01), mean compression strength (95.4 MPa (SD 3) vs 100.1 MPa (SD 6), p = 0.03), and mean bending strength (65.2 MPa (SD 5) vs 76.6 MPa (SD 4), p < 0.001) as well as its mean elastic modulus (2744 MPa (SD 97) vs 3281 MPa (SD 110), p < 0.001). The supplementation of the coloured cement with vancomycin and gentamicin decreased its mean bending resistance (55.7 MPa (SD 4) vs 65.2 MPa (SD 5), p < 0.001). The methylene blue significantly decreased the mean release of gentamicin alone (228.2 mu g (SD 24) vs 385.5 mu g (SD 26), p < 0.001) or in combination with vancomycin (498.5 mu g (SD 70) vs 613 mu g (SD 25), p = 0.018) from the bone cement. This study demonstrates several theoretical disadvantages of the antibiotic-loaded bone cement coloured with methylene blue

    Does the neurological recovery parallel the patient self-reported outcome a minimum of 20 years after lumbar discectomy?

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    The objective of this study was to evaluate if the neurologic recovery is correlated with the patient-oriented outcome a minimum of 20 years after surgery for lumbar disc herniation. Ninety patients were examined an average of 25.4 years after lumbar discectomy (range: 20-32 years). All patients underwent physical and neurological evaluation as well as a patient-oriented assessment including: an SF-36 questionnaire, Oswestry Disability Index, Cumulative Illness Rating Scale, and a study-specific questionnaire dealing with daily life activities and satisfaction with the surgery. Relationships between changes in clinical and neurological signs and quality of life, disability, or satisfaction with the surgery were checked by linear and logistic regression analysis. Disappearance of preoperative Lasegue and Wassermann signs on follow-up was noted in 64 of 80 (80%) and 19 of 31 (61.3%) patients, respectively, whereas preoperative areflexia and motor disturbances were persistently improved in 16 of 31 (52%) and 33 of 44 (75%) subjects, respectively. The SF-36 indexes and Oswestry scores in our patients were similar to normative data and/or postoperative results reported in other studies with much earlier follow-up dates. Both satisfaction with surgery and willingness to undergo the same procedure again were expressed by 81 of 90 patients (90 %). When possible differences in the selfreported outcome were analysed in the study group, no sign of neurological recovery independently predicted the subjective result in the patients. In conclusion, patients who had undergone lumbar discectomy a minimum of 20 years earlier have satisfactory self-reported outcomes and sustained improvement of the neurological function. The long-term subjective outcome is independent of the neurological recovery
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