[Ankle replacement for severe post-traumatic deformation of the distal tibia: a case report].

Objective: To evaluate the immediate results of ankle replacement with original prosthesis in a patient with severe post-traumatic deformation of the distal tibia.

Material And Methods: When developing the original design of ankle prosthesis, we considered foreign analogues of classical and revision models of ankle prostheses taking into account their shortcomings. In this case, an integrated approach was used.

3D Bioprinting of Hyaline Articular Cartilage: Biopolymers, Hydrogels, and Bioinks.

The musculoskeletal system, consisting of bones and cartilage of various types, muscles, ligaments, and tendons, is the basis of the human body. However, many pathological conditions caused by aging, lifestyle, disease, or trauma can damage its elements and lead to severe disfunction and significant worsening in the quality of life. Due to its structure and function, articular (hyaline) cartilage is the most susceptible to damage.

[Biomechanics of the first metatarsophalangeal joint after replacement].

Objective: Analysis of biomechanics of the first metatarsophalangeal joint after arthroplasty, interaction between bones and two implants of the first metatarsophalangeal joint using skeletal model of the foot.

Material And Methods: We developed anatomically adapted all-ceramic non-coupled endoprosthesis of proximal interphalangeal joint between 2016 and 2021. To create a model of the foot, we used diagnostic computed tomography whose images were applied in 3D sculpting system and computer-aided design system for final geometric modeling of the joint.

[Postoperative outcomes in patients with closed patellar fractures].

Objective: To improve postoperative outcomes in patients with closed patellar fractures using a new method of surgical treatment.

Material And Methods: The authors proposed a new method of patellar osteosynthesis. Technique of osteosynthesis is described, and surgical scheme is presented.

[Method of surgical treatment of patients with a chronic rupture of the Achilles tendon].

Objective: To improve treatment outcomes in patients with long-standing Achilles tendon ruptures with severe diastasis and dysfunction of the calf muscle via the use of a new method of surgical treatment.

Material And Methods: The authors proposed a new method of Achilles tendon repair for diastasis from 5 to 10 cm. This technique consists in elimination of diastasis with a tendon of the long peroneal muscle on the distal base.

[A new method of surgical treatment of patients with chronic distal Achilles tendon rupture].

Objective: To improve postoperative outcomes in patients with distal Achilles tendon rupture by using of a new method of surgical treatment.

Material And Methods: The authors proposed a new method to restore the Achilles tendon for its distal rupture (within 2 cm from attachment to the calcaneus). This approach implies forming a canal in the calcaneus and minimally invasive harvesting of the plantar tendon.

[Technology of manufacturing of personalized reconstructive allogenic bone graft (in Russian only)].

Aim: To develop the technology of manufacturing of reconstructive allogenic bone graft with individual parameters by using of digital prototyping and modeling.

Material And Methods: Allogeneic cadaveric bone blocks were used as material. The following methods were used to develop a manufacturing technology for personalized allogenic reconstructive bone implant: harvesting and special preparation of cadaveric material, primary disinfection, viral inactivation, ultrasound management, lyophilization of bone material, CT-examination of patients with various bone defects, digital prototyping and modeling, milling on a machine with numerical program control, X-ray sterilization.

[Estimated error of bone digital solid 3D-model construction algorithm].

The aim of the study was an experimental estimation of precision of maxilla bone digital solid 3D-model construction algorithm. The experiment was carried out on 12 mutton mandibles used 3D-model construction based on CT data. Estimated error was calculated for each of the stages of proposed processing algorithm including 3 software: ScanIP (triangle mesh calculation, primary solid 3D-model), ArtecStudio 9 (secondary procession for artefacts elimination), ZBrush 4R6 (triangle mesh simplification, final 3D-model).

[New surgical method for chronic rupture of the Achilles tendon].

Aim: To improve the outcomes in patients with chronic ruptures of the Achilles tendon followed by advanced diastase and reduced function of the gastrocnemius muscle by using of new surgical method.

Material And Methods: The authors proposed a new method of Achilles tendon repair for diastase over 10 cm. It imposes transposition of the tendons of short fibular muscle and posterior tibial muscle.

[Preclinical tests of additive materials for personified endoprostheses of hand joints].

Aim: To evaluate the biocompatibility of additive materials for personified endoprostheses of hand joints in vivo.

Material And Methods: We tested a material based on titanium that was implanted into muscles and bone tissue in experiment on rabbits. Follow-up was 30 and 90 days.

[Peculiarities of regenerative processes after the plasty of osteochondral defects with combined cell-tissue grafts on the basis of autologous and allogeneic cell cultures from costal cartilage tissue].

From a position of in vivo regenerative medicine, the efficacy of plasty of osteochondral defects of the articular surface was evaluated in rabbits. The combined cell-tissue grafts were used with the demineralized spongy bone as a biomatrix and autologous or allogeneic cells from the rib cartilage tissue. Morphofunctional characteristics of the cell cultures obtained were studied using morphological, histochemical, immunohistochemical and flow cytometric methods.

[Substantiation of the program of realization of bases of the state policy of a healthy nutrition of population of the Samara Region for the period till 2020 year].

Substantiate the need for long-term program of sanitation the diet of the population of the Samara Region. A systemic analysis of actual nutrition of different population groups in the region showed an excessive consumption of fats and added sugar--the main risk factors of obesity, cardiovascular diseases and diabetes mellitus. The risks of inadequate consumption of vitamins B, calcium, iron, caused by the irrational combination of the foodstuff use, are revealed.

[Whole body vibration (acceleration) training increases bone mineral density and serum levels of osteocalcin in elderly women].

Hip bone mineral density (BMD) and serum markers of bone turnover during drug (antiresorptic medicaments) and non-drug (acceleration training) therapy in elderly women suffering from postmenopausal osteoporosis has been investigated. The hip BMD measured in elderly women after a 24-week antiresorptic therapy (alendronate) and increased by 2.01%.

[T. I. Eroshevskii--founder of the Sarmarsk school of ophthalmology].

June 26 is the 100 anniversary of Professor T.I. Yeroshevsky--the Hero of socialist Work, the winner of the USSR State Premium, the correspondent of the USSR Academy of Medical Sciences, the Honoured Scientist of the RSFSR, the Honoured Citizen of Kuibyshev (nowdays--Samara) and Gurkovo of the Bulgarian National Republic.

[The use of gravitation overloading in the treatment of obliterative atherosclerosis of lower extremity arteries].

The article sums up results of treatment of 152 patients with obliterating atherosclerosis of the lower extremity arteries which were exposed to 2-3 G gravitation overloading made in a centrifuge of a short radius in direction head--pelvis. The gravitation overloading in the regimen followed were not found to have negative effects of central hemodynamics. Peripheral circulation was noted to considerably improve which is confirmed: 1) by clinical data showing 2-5 times longer distance of painless walking; 2) by the data of ultrasound dopplerography manifested as larger volume rate of blood flow and regional perfusion index; 3) by thermographic explorations evidencing the recovery of the thermoprophile of the legs and feet.

[Forms of post-traumatic knee joint instability].

The authors have proposed an addition to the clinical classification of posttraumatic instability of the knee joint, based upon the complex clinico-physiologic evaluation of functional state of a joint as a single system. According to the degree of expression of morpho-functional changes there have been singled out compensated, subcompensated and decompensated forms of posttraumatic instability. Singling out of the given forms orients the physician in selection of tactics of carrying out of pre- and postoperative periods, helps a surgeon to solve the problem of optimal plan of operative treatment.

[A combined method for the laboratory diagnosis of opisthorchiasis].

A combined method of coproovoscopy using potassium iodide (density 1.71) or zinc chloride (1.78) solutions is used for the diagnosis of opisthorchiasis in man, dogs and cats.

[Oxygen therapy of gonarthrosis deformans].

In the article is presented the comparative estimate of the oxygen therapy methods in treatment of the deforming gonarthrosis. The new method of treatment is described, including 4-5 courses of hyperbaric oxygenation therapy at 1-1.5 atms during 50 min and intraarticular introduction of oxygen.

[The opisthorchiasis situation in the Kama-Vyatka river basin].

Geographic vicinity, common economy and connections between Kama and Vyatka river basins require systemic opisthorchiasis studies in these Ural areas. Literary data show that the situation with opisthorchiasis on the Kama River is mainly studied in Komi-Permiak Autonomous Okrug and is unclear in the upper Kama, in Kirovsk Province. Additional data have been obtained and opisthorchiasis was for the first time found in the population, cats and mollusks in the upper Kama, in Kirovsk Province.