Osteogenesis imperfecta (OI) is a rare disease characterized by frequent fractures and deformities of the bone skeleton due to collagen abnormalities. Clinically, OI is heterogeneous in its features and varies in severity. Frequent fractures as a result of brittle bones lead to malunion and deformity, which increases the risk of refraction. Surgical treatment of children with imperfect osteogenesis is aimed at reducing the number of fractures, the formation of deformities and improving the quality of life of the child. According to the literature, two main methods of intramedullary osteosynthesis in the surgical treatment of children with OI can be distinguished: static rods and a growing metal structure. Aim. To compare the frequency of revisions and complications when using titanium elastic rods (TEN) and the Fassier-Duval telescopic system (FD) in the treatment of fractures and deformities of long bones in children with OI type I (mild disease) and type III (severe disease). Materials and methods. A retrospective and prospective analysis of the results of surgical treatment in 38 children with OI using two different methods of intramedullary osteosynthesis was carried out. Among them, 26 children (68% of all studied patients) were of type III and 12 (32%) children of type I. The mean age of the patients was 7.8 years [5.2, 10.8]. The 1st study group (retrospective) included 17 patients (45% of all patients) who underwent surgical treatment with the installation of titanium elastic rods (TEN). A total of 46 surgical interventions were performed. Surgical treatment with the installation of titanium elastic rods (TEN) for patients was carried out in other medical institutions before hospitalization at the National Medical Research Center for Children's Health. The 2nd study group (prospective) included 21 patients (55% of the total number of patients in the study), who were implanted with FD telescopic rods, 53 surgical interventions were performed. Patients of the prospective group received surgical treatment on the basis of the neuroorthopedic department of the National Research Center for Children's Health. The study groups were structured as follows: Study Group 1 consisted of 2 subgroups. Subgroup A included 6 patients with OI type I, subgroup B included 11 patients with OI type III; The 2nd study group was represented by two subgroups. Subgroup C included 6 patients with OI type I, and subgroup D included 15 patients with OI type III. A total of 228 segments of the upper and lower extremities (humerus, femur and tibia) were examined. Surgical treatment using intramedullary osteosynthesis was performed on 99 segments. The average period of postoperative follow-up was 20 months (from 16.5 to 24.5 months), the data collection of the retrospective group was carried out in the period from 20152022, the prospective group from 20172022. Analysis of the results of surgical treatment according to the following criteria: the frequency of migration of metal structures, the formation of bone deformities, the number of bone fractures with an installed metal fixator in two different methods of osteosynthesis, as well as the number of revisions in OI types I and III. The results of motor activity in the retrospective and prospective groups were assessed using two scales (the HofferBullock scale, the Gillette Functional Assessment Questionnaire score scale), before the start of surgical treatment and after 20 months. The statistical analysis was performed using the Matplotlib, SciPy, Pandas и NumPy modules in Python 3.8. In all cases, the distribution was different from normal. The comparison of the independent groups was carried out using the MannWhitney test (in the case of comparing two samples), while the comparison of the dependent groups was carried out using the Wilcoxon test. To compare the distribution of the categorical features, the Pearson chi-square test and Fisher's exact test (with the number of observations in one of the cells in the table 225) for the independent groups, and McNemars test for the dependent groups were used. In all cases, when the multiple comparisons were made, the level of the significance of p was recalculated using the Bonferroni correction. Hypothesis testing was two-sided; the values of p0.05 were considered statistically significant. Results. According to the comparison of two subgroups of the 1st study group, it was noted that fractures in two subgroups after the installation of static intramedullary nails occurred with an equal frequency (p-value0.999). Among patients with OI type I, migration was observed in 13% of cases (2 segments), with OI type III in 48%. Deformity in type I OI was formed in 13% of cases, in type III in 39%. Revisions in children with type I OI were required in 13% of cases, in children with type III in 32%. According to the comparison of two subgroups of the 2nd study group, it was noted that fractures and migrations in two subgroups after the installation of a telescopic metal structure occurred with equal frequency (p-value0.999). Deformity in type I OI was not formed, in type III it was 18%. Revisions in children with type I OI were required in 7.7% of cases, in children with type III in 15%. A comparative analysis of the results of surgical treatment of children with type I OI who underwent TEN osteosynthesis and children with type III OI who used a telescopic metal fixator demonstrates the absence of statistically significant differences in deformities, migrations, and revisions (p-value0.999). Also, in the group of children with OI type III, osteosynthesis of which was performed by FD, there is a decrease in the risk of re-fracture by 10%, in comparison with the group of children with OI type I, osteosynthesis of which was performed by TEN. Also, according to the data of statistical processing, surgical treatment of children with OI type III using an intramedullary telescopic system makes it possible to achieve a level of motor activity comparable to the group of patients with OI type I (p-value=0.344), where osteosynthesis was performed using TEN. Conclusion. The TEN method is a reliable method of treatment in children with OI type I, it is comparable to the method of telescopic metal construction in children with OI type I in terms of the frequency of migrations (p-value0.999). However, the risk of repeated surgical interventions is increased by 5.3% compared with FD, the frequency of fractures is higher by 12.3%, the formation of deformities by 13%. The use of growing hardware in children with type III reduces the risk of possible refracture by 9%, migration by 36%, deformity by 21% and the number of revisions by 17% compared with static rods. Patients who underwent FD osteosynthesis showed higher results of motor activity than patients who underwent TEN osteosynthesis. The results of the frequency of complications and revisions in the group of patients with OI type III, in which osteosynthesis was performed by the telescopic FD system, are comparable with the group of patients with OI type I, in which osteosynthesis was performed with TEN static rods. The quality of life and motor activity of children in the group with a severe course, whose osteosynthesis was carried out with a growing metal structure, reaches the level of patients with a mild course of the disease, whose osteosynthesis was performed using TEN (p-value=0.344). The method of choice in the surgical treatment of children with OI, both in type I and type III, is a growing intramedullary metal structure. The use of static rods is acceptable in OI type I, however, it should be taken into account that this metal structure is effective for the first 12 months, later, due to the inability to reinforce the bone throughout its entire length, the risk of possible complications increases.
Osteogenesis imperfecta (OI) is a heterogeneous group of diseases with different types of inheritance, characterized by frequent fractures and deformities of the bone skeleton. Conservative and surgical treatment of children with this pathology is an integral part of a multidisciplinary approach. In the surgical treatment of bone deformities in children with OI, the method of choice is corrective osteotomies, and an effective method of fixation is intramedullary osteosynthesis. Surgical treatment of children with OI is aimed at reducing the number of fractures, correcting deformities and increasing motor activity. Aim of the study to determine the indications for intramedullary osteosynthesis of long tubular bones in children with the disease. To review the studies concerning treatment of children with OI. Consider the different types of metal fixers, their advantages and disadvantages. Today the technique of intramedullary fixation is the "gold" standard in the surgical treatment of children with OI. There is a clear advantage of telescopic rods in terms of the frequency of reoperations, but their use does not exclude the presence of postoperative complications.
Objective of the study: to evaluate the effectiveness of layered alloplasty in the surgical treatment of active aneurysmal bone cysts (ABCs) in children. Materials and methods of research: from 2007 to 2020 56 patients with ABCs were treated in the Neuroortopedic Department with orthopedics of the National Medical Research Center for Children’s Health (Moscow, Russia). All patients have underwent a comprehensive clinical and radiological examination, including the determination of intraosseous pressure (IOP) to determine the activity of the pathological process. Surgical treatment of 19 patients with ABCs was performed through layered alloplastic method of the cyst cavity with the enhancing of the bone growth zone with alloimplants based on sea coral. Results: the results of treatment were evaluated on the basis of an analysis of the radiographic picture of reconstruction of bone implants and restoration of bone tissue structure, as well as analysis of the quality of life of patients in the 1st and 2nd module of the PedsQL Generic Core scale questionnaire before and after surgical treatment. Conclusion: the use of layered plasticity of a bone defect in the surgical treatment of ABCs can be considered as effective method for preventing recurrence of the disease.
Introduction. Bone cysts are one of the most common tumor-like bone diseases of childhood, most often occurring in the 1st and 2nd decade of life. According to the world medical literature, there is still no consensus on the best methods of treating bone cysts.Aim – to evaluate the effectiveness of surgical treatment of aneurysmal bone cysts (ABC) in children with the use of allografts of biological (animal and human) origin.Materials and methods. This study included 56 pediatric patients with ABC treated at The National Medical Research Center for Children’s Health, Russia, Moscow. 37 patients with aneurysmal bone cysts (29 active ABC, 8 inactive ABC) underwent surgical treatment. Our follow-up period ranged from 12 months to 80 months. In the postoperative period, the examination was carried out at a period of 3, 6, 12, 18, 24 months and then once a year, while assessing: the presence/absence of the recurrence (radiologically), the timing of functional recovery of the operated segment, the timing of X-ray reconstruction of the graft, the assessment of physical and emotional components of the patients’ quality of life were evaluated using the PedsQL questionnaire at admission and within 12 months from the date of surgery.Results and discussion. In 37 cases of surgical treatment of ABC with the use of allografts of biological origin, the recurrence presented in 7 patients (19%) – these patients, who had an active ABC, required repeated surgical interventions. The average time of complete bone repair in the lesion site ranged from 9 months to 22 months (14 months on average). Functional recovery of the operated segments was on average 10 months for the upper extremities and 12 months for the lower extremities.Conclusion. The use of allografts of biological origin is effective in the case of inactive aneurysmal bone cysts. In case of active ABC the effectiveness of bone grafting with allografts of biological origin is reduced.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.