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Sacral fractures are a heterogeneous group of fractures occurring in young people following road traffic accidents and falls from height, or in the elderly with osteoporosis following trivial trauma. This heterogeneity, combined with the low incidence of sacral fractures, determines a lack of experience amongst physicians, often leading to misdiagnosis, underestimation and inadequate treatment. The diagnosis should be made by assessing specific features during the clinical presentation, while computed tomography (CT) scan continues to be the choice of investigation. Sacral fractures can be treated non-operatively or surgically. Non-operative treatment is based on rest, pain relief therapy and early mobilization as tolerated. Surgical techniques can be split into two main groups: posterior pelvic fixation techniques and lumbopelvic fixation techniques. Anterior pelvic fixation techniques should be considered when sacral fractures are associated with anterior pelvic ring injuries, in order to increase stability and reduce the risk of posterior implant failure. To improve fracture reduction, different solutions could be adopted, including special positioning of the patient, manipulation techniques and use of specific reduction tools. Patients suffering from spinopelvic dissociation with associated neurologic lesions hardly ever recover completely, with residual lower-limb neurologic sequelae, urinary problems and sexual disfunction. Herein, we present issues, challenges and solutions related to the management of sacral fractures. Cite this article: EFORT Open Rev 2020;5:299-311. DOI: 10.1302/2058-5241.5.190064

Aim of the study The aim of this case-control study was to develop a clinical decision rule to support assessment of the risk of long-bone non-union and plan for appropriate early intervention. Methods Two hundred patients (100 cases and 100 controls) were recruited. Risk factors identified to contribute to the development of non-union were recorded and analysed with a multivariable logistic regression model. Tabulation of the outcome (nonunion/union) against each risk factor in turn (univariable analysis) was carried out. Odds ratios and confidence intervals were derived using Wald's method. A receiver-operator curve was calculated and the area under the curve was computed. Having established the eight most important risk factors, a non-union risk index was developed as the count of the risk factors present in each patient. Results The five risk factors for non-union with greater effect size were post-surgical fracture gap > 4 mm (odds ratio (OR) = 11.97 95% CI (4.27, 33.53)), infection superficial/deep (OR 10.16 (2.44, 42.36)), not optimum mechanical stability (OR 10.06 (3.75, 26.97)), displacement > 75% of shaft width (OR 6.81 (2.21, 20.95)), and site of fracture-tibia (OR 4.33 (1.32, 14.14)). The ROC curve for the non-union index was 0.924, sensitivity 91%, specificity 77%. Conclusions The non-union index derived from counting risk factors predicts union for 0-4 risk factors and non-union for 5-8 risk factors. It can be readily applied and can guide clinicians about the risk of development of long-bone non-union. It can become a powerful aid for assessing fracture fixation outcome and to support early intervention.

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Objective: To analyze the outcomes of tibial shaft fractures treated with a lateral parapatellar approach in the semiextended position for intramedullary nail insertion. Design: Prospective cohort study. Setting: Level I trauma center. Patients and Methods: Seventy patients treated from March 2012 to July 2015 with intramedullary nailing (IMN) using an extraarticular lateral parapatellar approach in the semiextended position were reviewed. Patients were clinically and radiographically checked at a minimum follow-up of 24 months, and the following data were recorded: fracture healing, any residual deformity, nail–apex distance, range of motion of the treated knee together with the contralateral side, knee functional outcome, and residual knee pain. Results: Twenty-four months after surgery, all patients were clinically and radiographically healed, with 2 cases of malalignment (angular deformity <10 degrees). The average range of motion of the treated knee was 0–130.6 degrees (±8.6 degrees) compared with 0–131.1 degree (±7.9 degrees) of the contralateral. Lysholm knee score was excellent for 57 patients, good for 11, and fair for 2. The mean residual pain was 0.6 (±1.1) according to the visual analogue scale. Conclusions: The described technique represents an effective option for IMN of tibial fractures. It is suitable for all tibial fractures, including proximal and distal. The results of our series demonstrate the effectiveness of this technique with nearly complete recovery of knee function and negligible incidence of anterior knee pain at a minimum follow-up of 24 months. Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

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