New method of tibio-calcaneal-navicular arthrodesis after talectomy.

Purpose To develop and investigate the results of a new, simple and versatile method of tibia- calcaneal arthrodesis that reduces limb shortening. Materials and methods This prospective study was conducted in patients who voluntarily agreed to a new operation. Informed consent was obtained from all individual participants included in the study. For 17 years, we have observed 14 patients with various forms of osteomyelitis, fractures and septic necrosis of the talus, who underwent a new method of tibio-calcaneal-navicular arthrodesis (TCNA). The age of the patients ranged from 23 to 75 years, (42 years on average). 2 patients were female, 12 were male. The Ilizarov apparatus was used as a fixator. The average time of immobilization in the apparatus was 4.9 months (from 3.5 to 6 months). The operations were performed by one surgeon. Results In all patients the wounds healed by primary intention. The average limb shortening 1.9 ± 0.5 cm. AOFAS Ankle-Hindfoot score (n=14) in all patients came up to 77,9 ± 6,8 (min 68, max 86) SD 12,8. Patients wore ordinary footwear without arch supporter and heels till 2cm. Only two female patients over 70 years used a stick. 2 patients had minor pain during prolonged walking. Conclusion Excellent and good results were obtained in all patients. The new TCNA method allows restoring the support ability of a limb, reduces shortening and improves the quality of life for patients.

Shorting Resection and Correction of the Leg Length in the Treatment of Posttramatic Tibial Defects Complicated by Osteomyelitis

Background. Severe fractures of the shin bones are often accompanied by the formation of defects in the tibia, suppuration and soft tissue necrosis. In the case of surgical treatment of fractures, infectious complications reach 3.6-9.1%. One of the methods of treatment of infected defects is resection of the ends of the tibia with shortening. This operation has proven to be effective in the treatment of fresh fractures. The relevance of the work is due to the prospects of using this technique in the treatment of the consequences of fractures with the formation of infected defects of the tibia.Aim of the study. Improving the results of treatment of patients with post-traumatic defects of the tibia complicated by osteomyelitis by performing a shortening resection with simultaneous or sequential correction of the segment length.Material and methods. The results of treatment of 65 patients with diaphyseal post-traumatic tibial defects complicated by osteomyelitis were analysed. They were divided into 2 groups. Group 1 was formed by 31 (47.7%) patients, they underwent shortening resection of the ends of bone fragments in the defect zone with simultaneous lengthening at another level. Group 2 included 34 (52.3%) patients who underwent a shortening resection of the tibia without lengthening. In all cases, the Ilizarov apparatus was used as a fixator.Results. The technique for assessing the size of the true defect of the tibia was optimized taking into account the initial shortening of the segment and the distance between the proximal and distal fragments after resection of their ends. A treatment regimen was developed depending on the level of localization of the tibial defect, and the results of treatment of patients in the compared groups were assessed.Conclusion. Shortening resection is an effective treatment for patients with post-traumatic tibial defects complicated by osteomyelitis. Depending on the level of localization of the defect, it is advisable to carry out treatment according to one of two possible options. When the defect is localized in the upper and middle third of the tibia, shortening resection in an isolated form is shown. If the defect is localized in the lower third of the tibia, it is possible to supplement the shortening resection with an osteotomy in the upper third with Ilizarov lengthening.

Transbone osteosynthesis by the ilizarov apparatus in calcaneal fractures

The new arrangement of the Ilizarov apparatus for treating calcaneal fractures is suggested. The scheme of laying wiring through calcaneum and its anatomotopographical grounds are shown. The nearest and remote results of treating 23 patients with calcaneal fractures are studied

Ilizarov method in the treatment of children with periarticular fractures

Introduction Periarticular injuries in children include types I and II fractures according to the Salter-Harris classification and metaphyseal fractures. In most cases, conservative treatment is an effective method, but in some cases, surgical treatment, including external fixation, is the method of choice. Purpose Discussion of the principles of using the Ilizarov apparatus in the treatment of children with periarticular fractures of various locations, its advantages and disadvantages. Materials and methods We present the principles and features of the Ilizarov surgical techniques for treatment of children with periarticular fractures of the distal humerus, femur, radius and tibia. Discussion The methods of osteosynthesis for pediatric periarticular fractures imply transphyseal introduction of fixators that have a potential threat of iatrogenic damage to the growth plate in contrast to external fixation which performance implies that transosseous elements do not injure the growth zone, providing stable fixation of bone fragments in combination with early functional recovery of the damaged segment which is a key advantage over other methods. Conclusion The use of the Ilizarov apparatus enables to achieve the desired result in the treatment of pediatric periarticular fractures and has a number of advantages over other methods of surgical treatment.

The state of the problem of fractures of the distal metepiphysis of the humerus in children and adolescents

Annotation. One of the most frequent injuries of the distal end of the humerus is the trans-condylar and supracondylar fractures of the humerus, which make up 47.5-80% of all intraarticular fractures of the elbow joint in children. Among the injuries of the distal humerus, the supracondylar and supracondylar fractures occur with the greatest frequency and is one of the most common domestic injuries in children aged 3 to 12 years. Our work is based on a retrospective analysis of the treatment of 255 patients treated in the Lviv City Children's Hospital for the period 2013-2017. 83.1% of patients were diagnosed with flexion fracture, 16.9% – flexion fracture. Transvertebral fractures of the shoulder were diagnosed in 85.5% of cases of the study array, supragingival – in 14.5%. The treatment of patients with the consequences of injuries of the elbow joint presents great difficulties and remains one of the most difficult problems in pediatric traumatology. Depending on the presence of rotational displacement and the severity of the fracture, the following types of treatment are most often used: conservative, osteosynthesis with spokes or Ilizarov apparatus. An ideal reposition and stable fixation of fragments during these injuries is necessary not only to ensure timely consolidation of the fracture, restoration of the anatomical integrity and shape of the distal humerus, but also to prevent the development of deformation in the elbow joint. Deformations of the elbow joint during supracondylar and supracondylar fractures of the shoulder, unlike deformation of another localization, cannot be adjusted and subsequently only increase and as a result can lead to impaired function of the elbow joint, and often to disability already in childhood. Thus, complicated anatomical localization of supracondylar and supracondylar fractures of the humerus in children, great technical difficulties in comparing and fixing fragments, there is a high probability of neurological and vascular disorders, both at the time of injury and during the provision of medical care, impaired function of the elbow joint determine the need for further study of this problem.

Distraction Osteogenesis in the Combined and Sequential Use of Transosseous and Intramedullary Osteosynthesis: Experimental Study

Background. The methods of “lengthening over the nail” (LON) and the sequential use of the external fixation and nailing in the option “lengthening and then the nail” (LATN) are characterized by ignoring non-observance of the formulated by G.A. Ilizarov is the most important condition for optimizing the osteogenesis process, namely, the preservation of medullary blood supply and osteogenic bone marrow tissue. At the same time, in clinical practice, there was no negative effect of the intramedullary nail on the formation of the regenerate. In experimental studies, the activation of periosteal bone formation during LON is noted. But the active periosteal bone formation detected in clinical practice with a sequential technique has not been confirmed by experimental studies.The aim of the study was to compare the organotypical rebuilding of the distraction regenerate during tibial lengthening in rabbits according to Ilizarov, over the intramedullary fixator and with the sequential use of the external fixation and nailing.Materials and Methods. The study was carried out on 54 mature rabbits of the Soviet Chinchilla breed, which were divided into 3 groups of 18 animals. In Gr-1 (control), the tibia was lengthened by 1 cm in a mini-Ilizarov apparatus at a rate of 1 mm per day for 4 sessions step. In Gr-2, the LATN technique was modeled. After the end of lengthening, an intramedullary fixator was implanted installed, the apparatus with the presence of wires only in the base supports was kept as an imitation of blocking the intramedullary fixator. In Gr-3, lengthening was performed over the intramedullary fixator; at the end of lengthening, the wires were left only in the base supports. The fixation period was is 30 days. The total duration of the experiment is 45 days. On the 10th, 15th, 20th, 30th, 45th day X-ray, CT and morphological studies were performed during the experiment.Results. In the experimental groups, a more pronounced periosteal bone formation in the area of regenerates was noted, while in Gr-3 (LON) cortical plates were formed mainly from the periosteal component, and in Gr-2 (LATN) wide cortical plates were formed from the intermediate and periosteal areas. In this group, the maximum densitometric density values are noted. Endosteal bone formation was preserved in all groups.Conclusion. The LON and LATN techniques, when compared with the classical Ilizarov lengthening, do not demonstrate any deficiency in the organotypical rebuilding of the bone tissue of the regenerates. All zones of bone formation are present, including endosteal, with intense periosteal bone formation. The most powerful bone structures are formed with the sequential use of the external fixation and nailing (LATN) in the form of the formation of wide cortical plates due to the intermediate and periosteal zones of the regenerate.

Efficiency of 3D Implants with Bioactive Properties for Treatment of Extensive Bone Defects: Experimental Study

Background. The problem of replacing extensive bone defects remains relevant. The use of implant structures with bioactive properties can stimulate osteogenesis, which will improve the final treatment result.The aim of the study. In an in vivo experiment, to study the possibility of replacing an extensive defect in the bone diaphysis with a personal bioactive cellular 3D implant and evaluate the long-term results of its use.Materials and Methods. In an in vivo experiment, adult large mongrel dogs (n = 8) were modeled with an extensive segmental defect of the tibial diaphysis measuring 4 cm. The defect was replaced with a cellular bioactive 3D implant made of titanium alloy Ti6Al4V, manufactured using the additive technology. The diameter of the cells was 1.5 mm on average. The walls of the implant had pores of 100– 300 μm in size. The inner and outer surfaces were coated with a calcium phosphate layer formed by micro-arc oxidation. The primary fixation was provided with the Ilizarov apparatus. In the early postoperative period, antibiotic prophylaxis with broad-spectrum drugs was performed. Clinical, X-ray, histological and statistical methods were used to analyze the results. The main control points were considered: the end of external fixation with the Ilizarov apparatus, after 180 days and 1 year after the termination of external fixation.Results. During the experiment, the death of animals and complications were not observed. The spatial location of the implant was preserved. The formation of a strong bone-implantation block occurred 37.2±6.3 days after the operation. During this period, the external fixation apparatus was dismantled. Osseointegration was provided under conditions of sufficient primary mechanical stability, due to the cellular structure of the implant, the presence of pores on its walls, and the osteoinductive properties of the applied calcium phosphate coating. The achieved degree of osseointegration persisted in long-term periods (6 months and 1 year after the termination of external fixation). The osteoinductive properties of the calcium phosphate coating were confirmed by the expression of osteopontin cells at all stages of the experiment. Outflow of Ca and P from bone fragments was not observed. An elastic sheath was formed on the surface of the implant, similar in structure to the periosteum. The implant cells were filled with a well-vascularized bone substrate. In the projection of the intermediate zone, compact bone tissue was formed, and in the projection of the medullary canal — reticulofibrous bone marrow. This indicates the possibility of organotypic remodeling of bone structures inside the implant.Conclusion. The results of the study showed the effectiveness of using a bioactive cellular 3D implant to replace an extensive defect in the shaft of the bone. The architectonics and osteoinductive properties of the implant surface contributed to the formation of complete osseointegration in a short time, while maintaining the achieved result in long-term periods.

Morphological Approach to the Study of the Dynamics of Changes in the Fibrous Structures of the Dermis in Dermotension

Background: The method of dermotension is successfully used in surgical practice to close extensive defects or as a result of treating fractures using the Ilizarov apparatus. However, to obtain the desired result, surgeons often neglect the condition of the skin flap itself. In this regard, the purpose of our study was to study the dynamics of changes in fibrous structures in the dermis of the skin during dermotension. Methods and Results: The material for the 14-day study was a skin flap of Wistar rats obtained after distraction with the Ilizarov apparatus. Analyzing the morphological picture of the state of the dermis after the study, we found a decrease in the thickness of both the epidermis and the dermis by 2.3 and 3.3 times, respectively. A decrease in the density of collagen structures of both types I and III was also noted. Conclusion: The results obtained indicate the restructuring, first of all, of the fibrous component of the dermis, which consists in reparative-restorative processes, which must be taken into account when choosing the rate and duration of dermotension.

Aesthetic surgery of the lower limbs in current orthopedic practice

Introduction Correction of the shape of the lower extremities for aesthetic purposes has specific features that are associated with the role of the patient in the treatment process and assessment of results. An important element is the relationship between the appearance of the limb and changes in the axes of the skeleton. Aim of study Assessment of many-years of experience in orthopedic correction of the shape of the lower extremities for aesthetic purposes, discussion of possibilities, analysis of problems and search for possible ways to prevent them. Methods The material of the study was 123 patients who underwent aesthetic surgical correction in the period from 2005 to 2020. Their results were followed in the period from 6 months to 11 years. In all cases, operations were performed simultaneously on both limbs. The total number of operations, thus, amounted to 246. The main indication for surgery was the so-called true O-shaped curvature (varus deformity) of the lower extremities. In all cases, the main elements of the operation were osteosynthesis with the Ilizarov apparatus and osteotomy of the tibia. Wires and half-pins were used as transosseous elements. To assess the main reference lines and angles (RLA), X-ray examination of the lower extremities was performed with the capture of the hip and ankle joints. Results and discussion Corrective manipulations in the group of patients led to a change in the position of the main RLA. Before treatment, MAD value was 15 ± 7 mm, after correction MAD = -2 ± 4 mm, before surgery MPTA = 85 ± 40, after correction MPTA = 91 ± 20. Subjective satisfaction was reported in 114 (92.7 %) cases. Subjectively unsatisfactory results were recorded in 4 (3.3 %) cases; objectively unsatisfactory results were detected in 5 (4.1 %) cases. Conclusions Aesthetic surgery of the lower extremities is a part of orthopedic practice and has its specific features due to the goal of realizing the patient's wishes about changing the appearance of the lower extremities indirectly by performing operations on the skeleton. Corrective interventions should be considered as a preventive measure aimed at preventing the development of gonarthrosis in old age. The key to a good result is careful selection of candidates for surgery and their compliance, along with a thorough explanation of the principles and features of correction.

Ankle distraction arthroplasty using the Ilizarov external fixation and arthroscopy: first clinical experience

We report a clinical case of a 27-year-old patient with posttraumatic painful ankle arthritis following sport injury treated with combined methods. The patient underwent ankle distraction arthroplasty with original Ilizarov apparatus and arthroscopic diagnosis and treatment of the ankle injury followed by the joint unloading and exercise therapy with frame on performed for 6 weeks at the Kurgan Ilizarov Center. The patient could improve pain relief and function at a long term following comprehensive treatment including surgical intervention, a course of physical procedures and exercise therapy. The combined technique can be used as an alternative treatment for patients with posttraumatic ankle arthritis.